![Jun Liu](https://profiles-cardiff.imgix.net/attachments/3893?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Overview
Dr. Jun Liu is a Lecturer and an academic member of Magnetics and Materials Research Groups at School of Engineering of Cardiff University. With a strong foundation in the intricacies of metallurgy and magnetic materials, Dr. Jun Liu has developed a comprehensive research portfolio that meticulously explores the correlation between microstructures and the magnetic properties of soft magnetic materials.
Research Interests:
Dr. Jun Liu's research is anchored in a profound interest in unveiling the intricate relationships between the microstructures and magnetic properties of magnetic materials. This encompasses a spectrum of specialized areas, including:
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Non-Destructive Evaluation of Microstructures: Utilizing advanced electromagnetic and magnetic techniques to innovatively assess the microstructures of steels without causing any material damage or alteration.
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Microstructural Magnetic Modelling: Engaging in cutting-edge modelling to analyze and predict the magnetic properties influenced by various microstructures.
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Microstructure and Magnetic Property Characterisation: Conducting thorough characterizations to deeply understand the mutual influences between microstructures and magnetic properties.
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Finite Element Modelling of Electromagnetic Sensor Systems: Applying sophisticated finite element modelling approaches to develop and optimize electromagnetic sensor systems, enhancing their performance and reliability.
Publication
2025
- Liu, J., Davis, C., Yue, S., Jolfaei, M. A., Shen, J. and Li, Y. 2025. Scalar permeability microstructure model considering crystallographic texture and grain size for magnetic evaluation of anisotropy in steel. Acta Materialia 289, article number: 120863. (10.1016/j.actamat.2025.120863)
- Yue, S., Yin, J., Li, Y., Dou, Y., Chen, R. and Liu, J. 2025. A modified fixed-point iteration algorithm for magnetic field computation with hysteresis models. IEEE Transactions on Magnetics 61(1), article number: 7400104. (10.1109/TMAG.2024.3490895)
2024
- Li, Y., Li, Y., Lin, Z., Yue, S., Chen, R., Guo, P. and Liu, J. 2024. A hysteresis model for soft magnetic composites considering particle size distribution. IEEE Transactions on Magnetics 60(12), article number: 7301405. (10.1109/TMAG.2024.3458798)
- Li, Y., Li, Y., Yue, S., Chen, R., Lin, Z. and Liu, J. 2024. An anisotropic hysteresis model considering microstructural feature. Presented at: 2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC), Jeju, Korea, 02-05 June 2024Proceedings 2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC). IEEE, (10.1109/CEFC61729.2024.10585668)
- Yue, S., Yin, J., Li, Y., Dou, Y., Chen, R. and Liu, J. 2024. A modified fixed-point iteration algorithm for magnetic field computation with hysteresis models. Presented at: 2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC), Jeju, Korea, 02-05 June 2024Proceedings 2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC). IEEE, (10.1109/CEFC61729.2024.10586156)
- Yue, S., Liu, J., Li, Y. and Liu, G. 2024. Finite element modelling of the magnetic property behaviours of electrical steels in rotating fields considering their crystallographic textures. Materialia, article number: 102138. (10.1016/j.mtla.2024.102138)
- Liu, J. 2024. EBSDPolygonizer: Enabling realistic microstructural modelling. SoftwareX 25, article number: 101622. (10.1016/j.softx.2023.101622)
2023
- Aghadavoudi Jolfaei, M., Liu, J., van den Berg, F. and Davis, C. 2023. Measurement and modelling magnetic anisotropy due to crystallographic texture in interstitial free (IF) steels. In: Bilicz, S., Gyimothy, S. and Vertesy, G. eds. Electromagnetic Non-Destructive Evaluation (XXIV)., Vol. 46. Studies in Applied Electromagnetics and Mechanics IOS Press, pp. 17-23., (10.3233/SAEM230004)
- Aghadavoudi Jolfaei, M., Liu, J., Zhou, L. F., Van Den Berg, F. and Davis, C. 2023. Non-destructive evaluation of magnetic anisotropy associated with crystallographic texture of interstitial free steels. Journal of Magnetism and Magnetic Materials 568, article number: 170374. (10.1016/j.jmmm.2023.170374)
2022
- Aghadavoudi Jolfaei, M., Liu, J., Zhou, L., Van Den Berg, F. and Davis, C. L. 2022. Non-destructive evaluation of magnetic anisotropy associated with crystallographic texture of interstitial free steels using an electromagnetic sensor. [Online]. SSRN: Elsevier. (10.2139/ssrn.4267904) Available at: http://dx.doi.org/10.2139/ssrn.4267904
2021
- Liu, J. and Davis, C. 2021. Tensorial permeability microstructure model considering crystallographic texture and grain size for evaluation of magnetic anisotropy In polycrystalline steels. Philosophical Magazine 101(10), pp. 1224-1244. (10.1080/14786435.2021.1892229)
2019
- Liu, J., Wilson, J., Davis, C. L. and Peyton, A. 2019. Magnetic characterisation of grain size and precipitate distribution by major and minor BH loop measurements. Journal of Magnetism and Magnetic Materials 481, pp. 55-67. (10.1016/j.jmmm.2019.02.088)
2017
- Liu, J., Wilson, J., Davis, C. and Peyton, A. 2017. Optimized setup and protocol for magnetic domain imaging with in situ hysteresis measurement. Journal of Visualized Experiments 2017(129), article number: e56376. (10.3791/56376)
2016
- Liu, J., Wilson, J., Strangwood, M., Davis, C. L. and Peyton, A. 2016. Magnetic characterisation of microstructural feature distribution in P9 and T22 steels by major and minor BH loop measurements. Journal of Magnetism and Magnetic Materials 401, pp. 579-592. (10.1016/j.jmmm.2015.10.075)
- Liu, J. and Davis, C. 2016. A hysteresis model considering microstructural feature distribution. Presented at: 42nd Annual Review of Progress in Quantitative Nondestriuctive Evaluation, Minneapolis, MN, USA, 26-31 July 2015 Presented at Chimenti, D. E. and Bond, L. J. eds., Vol. 1706. Vol. 1. AIP Publishing pp. 90018., (10.1063/1.4940555)
- Liu, J., Wilson, J., Davis, C. and Peyton, A. 2016. Evaluation of precipitate and grain size distribution in steels by magnetic hysteresis measurement and modelling. Presented at: 55th Annual Conference of the British Institute of Non-Destructive Testing (NDT 2016), Nottingham, England, 12-14 September 2016Proceedings of 55th Annual British Conference of Non-Destructive Testing - NDT 2016. British Institute of Non-Destructive Testing ( BINDT )
- Wilson, J. W., Karimian, N., Peyton, A. J., Davis, C. and Liu, J. 2016. Development of a tool for the magnetic assessment of microstructural changes in Grade 91 power station steel tubes. Presented at: 55th Annual Conference of the British Institute of Non-Destructive Testing (NDT 2016), Nottingham, England, 12-14 September 201655th Annual Conference of the British Institute of Non-Destructive Testing (NDT 2016). British Institute of Non-Destructive Testing ( BINDT ) pp. 72-79.
2015
- Liu, J., Wilson, J., Strangwood, M., Davis, C. L., Peyton, A. and Parker, J. 2015. Electromagnetic evaluation of the microstructure of grade 91 tubes/pipes. International Journal of Pressure Vessels and Piping 132-13, pp. 65-71. (10.1016/j.ijpvp.2015.05.009)
2014
- Zhou, L., Liu, J., Hao, X. J., Strangwod, M., Peyton, A. J. and Davis, C. L. 2014. Quantification of the phase fraction in steel using an electromagnetic sensor. NDT and E International 67, pp. 31-35. (10.1016/j.ndteint.2014.06.007)
- Liu, J., Strangwood, M., Davis, C. L. and Parker, J. 2014. Non-destructive characterisation of N/Al level in P91 steels using electromagnetic sensors. Materials Science and Technology 31(9), pp. 1042-1050. (10.1179/1743284714Y.0000000642)
- Wilson, J. W., Karimian, N., Liu, J., Yin, W., Davis, C. L. and Peyton, A. J. 2014. Measurement of the magnetic properties of P9 and T22 steel taken from service in power station. Journal of Magnetism and Magnetic Materials 360, pp. 52-58. (10.1016/j.jmmm.2014.01.057)
- Karimian, N., Wilson, J. W., Peyton, A. J., Yin, W., Liu, J. and Davis, C. L. 2014. Differential permeability behaviour of P9 and T22 power station Steels. Journal of Magnetism and Magnetic Materials 352(1), pp. 81-90. (10.1016/j.jmmm.2013.09.059)
- Wilson, J. W., Karimian, N., Peyton, A. ., Liu, J., Kahlon, N. S. and Davis, C. L. 2014. Incremental permeability and magnetic Barkhausen noise for the assessment of microstructural changes in Grade 91 power station tubes. Presented at: 53rd Annual Conference of the British Institute of Non-Destructive Testing (NDT 2014), Manchester, England, 9-11 September 201453rd Annual Conference of the British Institute of Non-Destructive Testing (NDT 2014). British Institute of Non-Destructive Testing ( BINDT )
2013
- Liu, J., Strangwood, M., Davis, C. L. and Peyton, A. J. 2013. Magnetic evaluation of microstructure changes in 9Cr-1Mo and 2.25Cr-1Mo steels using electromagnetic sensors. Metallurgical and Materials Transactions A 44(13), pp. 5897-5909. (10.1007/s11661-013-1938-x)
- Karimian, N., Yin, W., Liu, J., Hao, X. J., Strangwood, M., Davis, C. L. and Peyton, A. J. 2013. Non-contact EM measurement of the properties of power station steels taken from service. Presented at: 2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), Minneapolis, MN, USA, 6-9 May 20132013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE pp. 1573-1578., (10.1109/I2MTC.2013.6555679)
- Karimian, N., Wilson, J. W., Yin, W., Liu, J., Davis, C. L. and Peyton, A. J. 2013. Magnetic sensing for microstructural assessment of power station steels: differential permeability and magnetic hysteresis. Presented at: 17th Sensors and Their Applications Conference, Dubrovnik, Croatia, 16-18 September 2013, Vol. 450. IOP Publishing: Conference Series, (10.1088/1742-6596/450/1/012042)
- Liu, J., Liu, C. and Conway, P. P. 2013. Kinetic Monte Carlo simulation of the electrodeposition of polycrystalline copper: Effects of substrates and deposition parameters on the microstructure of deposits. Electrochimica Acta 97, pp. 132-142. (10.1016/j.electacta.2013.02.112)
- Karimian, N., Wilson, J. W., Yin, W., Peyton, A. J., Liu, J., Strangwood, M. and Davis, C. L. 2013. Assessment of electromagnetic properties of power station steels for lifetime extension. Presented at: 52nd Annual Conference of the British Institute of Non-Destructive Testing 2013 (NDT 2013), Telford, England, 10-12 September 201352nd Annual Conference of the British Institute of Non-Destructive Testing 2013 (NDT 2013). British Institute of Non-Destructive Testing pp. 160-171.
- Wilson, J. W., Karimian, N., Yin, W., Liu, J., Davis, C. L. and Peyton, A. J. 2013. Magnetic sensing for microstructural assessment of power station steels: magnetic Barkhausen noise and minor loop measurements. Presented at: 17th Sensors and Their Applications Conference, Dubrovnik, Croatia, 16-18 September 2013, Vol. 450. Vol. 1. IOP Publishing: Conference Series pp. 12041., (10.1088/1742-6596/450/1/012041)
- Wilson, J. W. et al. 2013. Towards the development of a field deployable EM inspection tool for the evaluation of power station steels. Presented at: 52nd Annual Conference of the British Institute of Non-Destructive Testing 2013 (NDT 2013), Telford, England, 10-12 September 201352nd Annual Conference of the British Institute of Non-Destructive Testing 2013 (NDT 2013). British Institute of Non-Destructive Testing ( BINDT ) pp. 180-189.
2012
- Yin, W. et al. 2012. Measurement of electromagnetic properties of power station steels. NDT and E International 51, pp. 135-141. (10.1016/j.ndteint.2012.06.008)
- Yin, W. et al. 2012. Measurement of electromagnetic properties of power station steels. Presented at: 2012 IEEE International Instrumentation and Measurement Technology (I2MTC), Graz, Austria, 13-16 May 20122012 IEEE International Instrumentation and Measurement Technology Conference Proceedings. IEEE pp. 1603-1606., (10.1109/I2MTC.2012.6229119)
- Liu, J., Hao, X. J., Zhou, L., Strangwood, M., Davis, C. L. and Peyton, A. J. 2012. Measurement of microstructure changes in 9Cr-1Mo and 2.25Cr-1Mo steels using an electromagnetic sensor. Scripta Materialia 66(6), pp. 367-370. (10.1016/j.scriptamat.2011.11.032)
2009
- Liu, J., Liu, C. and Conway, P. P. 2009. Kinetic Monte Carlo simulation of kinetically limited copper electrocrystallization on an atomically even surface. Electrochimica Acta 54(27), pp. 6941-6948. (10.1016/j.electacta.2009.07.019)
- Liu, J., Liu, C. and Conway, P. P. 2009. Kinetic Monte Carlo simulation of electrodeposition of polycrystalline Cu. Electrochemistry Communications 11(11), pp. 2207-2211. (10.1016/j.elecom.2009.09.032)
- Liu, J., Liu, C., Conway, P. P., Zeng, J. and Wang, C. 2009. Growth and recrystallization of electroplated copper columns. Presented at: 10th International Conference on Electronic Packaging Technology & High Density Packaging (2009 ICEPT), Bejing, China, 10-13 August 20092009 International Conference on Electronic Packaging Technology & High Density Packaging. IEEE pp. 695-700., (10.1109/ICEPT.2009.5270660)
2008
- Liu, J., Liu, C. and Conway, P. P. 2008. Growth mechanism of copper column by electrodeposition for electronic interconnections. Presented at: 2nd Electronics System-Integration Technology Conference (ESTC 2008), Greenwich, England, 1-4 September 20082008 2nd Electronics System-Integration Technology Conference. IEEE pp. 679-684., (10.1109/ESTC.2008.4684432)
2007
- Liu, J., Liu, C. and Conway, P. P. 2007. Crystallographic features of copper column growth by reversible pulse current electrodeposition. Presented at: IEEE 57th Electronic Components and Technology Conference (ECTC 2007), Reno, NV, USA, 29 May - 1 June 20072007 Proceedings 57th Electronic Components and Technology Conference. IEEE pp. 892-897., (10.1109/ECTC.2007.373904)
2005
- Liu, J., Wang, R. and Qian, Y. 2005. The formation of a single-pulse electrospark deposition spot. Surface and Coatings Technology 200(7), pp. 2433-2437. (10.1016/j.surfcoat.2004.07.104)
2004
- Wang, R. J., Qian, Y. Y. and Liu, J. 2004. Structural and interfacial analysis of WC92–Co8 coating deposited on titanium alloy by electrospark deposition. Applied Surface Science 228(1-4), pp. 405-409. (10.1016/j.apsusc.2004.01.043)
Articles
- Liu, J., Davis, C., Yue, S., Jolfaei, M. A., Shen, J. and Li, Y. 2025. Scalar permeability microstructure model considering crystallographic texture and grain size for magnetic evaluation of anisotropy in steel. Acta Materialia 289, article number: 120863. (10.1016/j.actamat.2025.120863)
- Yue, S., Yin, J., Li, Y., Dou, Y., Chen, R. and Liu, J. 2025. A modified fixed-point iteration algorithm for magnetic field computation with hysteresis models. IEEE Transactions on Magnetics 61(1), article number: 7400104. (10.1109/TMAG.2024.3490895)
- Li, Y., Li, Y., Lin, Z., Yue, S., Chen, R., Guo, P. and Liu, J. 2024. A hysteresis model for soft magnetic composites considering particle size distribution. IEEE Transactions on Magnetics 60(12), article number: 7301405. (10.1109/TMAG.2024.3458798)
- Yue, S., Liu, J., Li, Y. and Liu, G. 2024. Finite element modelling of the magnetic property behaviours of electrical steels in rotating fields considering their crystallographic textures. Materialia, article number: 102138. (10.1016/j.mtla.2024.102138)
- Liu, J. 2024. EBSDPolygonizer: Enabling realistic microstructural modelling. SoftwareX 25, article number: 101622. (10.1016/j.softx.2023.101622)
- Aghadavoudi Jolfaei, M., Liu, J., Zhou, L. F., Van Den Berg, F. and Davis, C. 2023. Non-destructive evaluation of magnetic anisotropy associated with crystallographic texture of interstitial free steels. Journal of Magnetism and Magnetic Materials 568, article number: 170374. (10.1016/j.jmmm.2023.170374)
- Liu, J. and Davis, C. 2021. Tensorial permeability microstructure model considering crystallographic texture and grain size for evaluation of magnetic anisotropy In polycrystalline steels. Philosophical Magazine 101(10), pp. 1224-1244. (10.1080/14786435.2021.1892229)
- Liu, J., Wilson, J., Davis, C. L. and Peyton, A. 2019. Magnetic characterisation of grain size and precipitate distribution by major and minor BH loop measurements. Journal of Magnetism and Magnetic Materials 481, pp. 55-67. (10.1016/j.jmmm.2019.02.088)
- Liu, J., Wilson, J., Davis, C. and Peyton, A. 2017. Optimized setup and protocol for magnetic domain imaging with in situ hysteresis measurement. Journal of Visualized Experiments 2017(129), article number: e56376. (10.3791/56376)
- Liu, J., Wilson, J., Strangwood, M., Davis, C. L. and Peyton, A. 2016. Magnetic characterisation of microstructural feature distribution in P9 and T22 steels by major and minor BH loop measurements. Journal of Magnetism and Magnetic Materials 401, pp. 579-592. (10.1016/j.jmmm.2015.10.075)
- Liu, J., Wilson, J., Strangwood, M., Davis, C. L., Peyton, A. and Parker, J. 2015. Electromagnetic evaluation of the microstructure of grade 91 tubes/pipes. International Journal of Pressure Vessels and Piping 132-13, pp. 65-71. (10.1016/j.ijpvp.2015.05.009)
- Zhou, L., Liu, J., Hao, X. J., Strangwod, M., Peyton, A. J. and Davis, C. L. 2014. Quantification of the phase fraction in steel using an electromagnetic sensor. NDT and E International 67, pp. 31-35. (10.1016/j.ndteint.2014.06.007)
- Liu, J., Strangwood, M., Davis, C. L. and Parker, J. 2014. Non-destructive characterisation of N/Al level in P91 steels using electromagnetic sensors. Materials Science and Technology 31(9), pp. 1042-1050. (10.1179/1743284714Y.0000000642)
- Wilson, J. W., Karimian, N., Liu, J., Yin, W., Davis, C. L. and Peyton, A. J. 2014. Measurement of the magnetic properties of P9 and T22 steel taken from service in power station. Journal of Magnetism and Magnetic Materials 360, pp. 52-58. (10.1016/j.jmmm.2014.01.057)
- Karimian, N., Wilson, J. W., Peyton, A. J., Yin, W., Liu, J. and Davis, C. L. 2014. Differential permeability behaviour of P9 and T22 power station Steels. Journal of Magnetism and Magnetic Materials 352(1), pp. 81-90. (10.1016/j.jmmm.2013.09.059)
- Liu, J., Strangwood, M., Davis, C. L. and Peyton, A. J. 2013. Magnetic evaluation of microstructure changes in 9Cr-1Mo and 2.25Cr-1Mo steels using electromagnetic sensors. Metallurgical and Materials Transactions A 44(13), pp. 5897-5909. (10.1007/s11661-013-1938-x)
- Liu, J., Liu, C. and Conway, P. P. 2013. Kinetic Monte Carlo simulation of the electrodeposition of polycrystalline copper: Effects of substrates and deposition parameters on the microstructure of deposits. Electrochimica Acta 97, pp. 132-142. (10.1016/j.electacta.2013.02.112)
- Yin, W. et al. 2012. Measurement of electromagnetic properties of power station steels. NDT and E International 51, pp. 135-141. (10.1016/j.ndteint.2012.06.008)
- Liu, J., Hao, X. J., Zhou, L., Strangwood, M., Davis, C. L. and Peyton, A. J. 2012. Measurement of microstructure changes in 9Cr-1Mo and 2.25Cr-1Mo steels using an electromagnetic sensor. Scripta Materialia 66(6), pp. 367-370. (10.1016/j.scriptamat.2011.11.032)
- Liu, J., Liu, C. and Conway, P. P. 2009. Kinetic Monte Carlo simulation of kinetically limited copper electrocrystallization on an atomically even surface. Electrochimica Acta 54(27), pp. 6941-6948. (10.1016/j.electacta.2009.07.019)
- Liu, J., Liu, C. and Conway, P. P. 2009. Kinetic Monte Carlo simulation of electrodeposition of polycrystalline Cu. Electrochemistry Communications 11(11), pp. 2207-2211. (10.1016/j.elecom.2009.09.032)
- Liu, J., Wang, R. and Qian, Y. 2005. The formation of a single-pulse electrospark deposition spot. Surface and Coatings Technology 200(7), pp. 2433-2437. (10.1016/j.surfcoat.2004.07.104)
- Wang, R. J., Qian, Y. Y. and Liu, J. 2004. Structural and interfacial analysis of WC92–Co8 coating deposited on titanium alloy by electrospark deposition. Applied Surface Science 228(1-4), pp. 405-409. (10.1016/j.apsusc.2004.01.043)
Book sections
- Aghadavoudi Jolfaei, M., Liu, J., van den Berg, F. and Davis, C. 2023. Measurement and modelling magnetic anisotropy due to crystallographic texture in interstitial free (IF) steels. In: Bilicz, S., Gyimothy, S. and Vertesy, G. eds. Electromagnetic Non-Destructive Evaluation (XXIV)., Vol. 46. Studies in Applied Electromagnetics and Mechanics IOS Press, pp. 17-23., (10.3233/SAEM230004)
Conferences
- Li, Y., Li, Y., Yue, S., Chen, R., Lin, Z. and Liu, J. 2024. An anisotropic hysteresis model considering microstructural feature. Presented at: 2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC), Jeju, Korea, 02-05 June 2024Proceedings 2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC). IEEE, (10.1109/CEFC61729.2024.10585668)
- Yue, S., Yin, J., Li, Y., Dou, Y., Chen, R. and Liu, J. 2024. A modified fixed-point iteration algorithm for magnetic field computation with hysteresis models. Presented at: 2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC), Jeju, Korea, 02-05 June 2024Proceedings 2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC). IEEE, (10.1109/CEFC61729.2024.10586156)
- Liu, J. and Davis, C. 2016. A hysteresis model considering microstructural feature distribution. Presented at: 42nd Annual Review of Progress in Quantitative Nondestriuctive Evaluation, Minneapolis, MN, USA, 26-31 July 2015 Presented at Chimenti, D. E. and Bond, L. J. eds., Vol. 1706. Vol. 1. AIP Publishing pp. 90018., (10.1063/1.4940555)
- Liu, J., Wilson, J., Davis, C. and Peyton, A. 2016. Evaluation of precipitate and grain size distribution in steels by magnetic hysteresis measurement and modelling. Presented at: 55th Annual Conference of the British Institute of Non-Destructive Testing (NDT 2016), Nottingham, England, 12-14 September 2016Proceedings of 55th Annual British Conference of Non-Destructive Testing - NDT 2016. British Institute of Non-Destructive Testing ( BINDT )
- Wilson, J. W., Karimian, N., Peyton, A. J., Davis, C. and Liu, J. 2016. Development of a tool for the magnetic assessment of microstructural changes in Grade 91 power station steel tubes. Presented at: 55th Annual Conference of the British Institute of Non-Destructive Testing (NDT 2016), Nottingham, England, 12-14 September 201655th Annual Conference of the British Institute of Non-Destructive Testing (NDT 2016). British Institute of Non-Destructive Testing ( BINDT ) pp. 72-79.
- Wilson, J. W., Karimian, N., Peyton, A. ., Liu, J., Kahlon, N. S. and Davis, C. L. 2014. Incremental permeability and magnetic Barkhausen noise for the assessment of microstructural changes in Grade 91 power station tubes. Presented at: 53rd Annual Conference of the British Institute of Non-Destructive Testing (NDT 2014), Manchester, England, 9-11 September 201453rd Annual Conference of the British Institute of Non-Destructive Testing (NDT 2014). British Institute of Non-Destructive Testing ( BINDT )
- Karimian, N., Yin, W., Liu, J., Hao, X. J., Strangwood, M., Davis, C. L. and Peyton, A. J. 2013. Non-contact EM measurement of the properties of power station steels taken from service. Presented at: 2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), Minneapolis, MN, USA, 6-9 May 20132013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC). IEEE pp. 1573-1578., (10.1109/I2MTC.2013.6555679)
- Karimian, N., Wilson, J. W., Yin, W., Liu, J., Davis, C. L. and Peyton, A. J. 2013. Magnetic sensing for microstructural assessment of power station steels: differential permeability and magnetic hysteresis. Presented at: 17th Sensors and Their Applications Conference, Dubrovnik, Croatia, 16-18 September 2013, Vol. 450. IOP Publishing: Conference Series, (10.1088/1742-6596/450/1/012042)
- Karimian, N., Wilson, J. W., Yin, W., Peyton, A. J., Liu, J., Strangwood, M. and Davis, C. L. 2013. Assessment of electromagnetic properties of power station steels for lifetime extension. Presented at: 52nd Annual Conference of the British Institute of Non-Destructive Testing 2013 (NDT 2013), Telford, England, 10-12 September 201352nd Annual Conference of the British Institute of Non-Destructive Testing 2013 (NDT 2013). British Institute of Non-Destructive Testing pp. 160-171.
- Wilson, J. W., Karimian, N., Yin, W., Liu, J., Davis, C. L. and Peyton, A. J. 2013. Magnetic sensing for microstructural assessment of power station steels: magnetic Barkhausen noise and minor loop measurements. Presented at: 17th Sensors and Their Applications Conference, Dubrovnik, Croatia, 16-18 September 2013, Vol. 450. Vol. 1. IOP Publishing: Conference Series pp. 12041., (10.1088/1742-6596/450/1/012041)
- Wilson, J. W. et al. 2013. Towards the development of a field deployable EM inspection tool for the evaluation of power station steels. Presented at: 52nd Annual Conference of the British Institute of Non-Destructive Testing 2013 (NDT 2013), Telford, England, 10-12 September 201352nd Annual Conference of the British Institute of Non-Destructive Testing 2013 (NDT 2013). British Institute of Non-Destructive Testing ( BINDT ) pp. 180-189.
- Yin, W. et al. 2012. Measurement of electromagnetic properties of power station steels. Presented at: 2012 IEEE International Instrumentation and Measurement Technology (I2MTC), Graz, Austria, 13-16 May 20122012 IEEE International Instrumentation and Measurement Technology Conference Proceedings. IEEE pp. 1603-1606., (10.1109/I2MTC.2012.6229119)
- Liu, J., Liu, C., Conway, P. P., Zeng, J. and Wang, C. 2009. Growth and recrystallization of electroplated copper columns. Presented at: 10th International Conference on Electronic Packaging Technology & High Density Packaging (2009 ICEPT), Bejing, China, 10-13 August 20092009 International Conference on Electronic Packaging Technology & High Density Packaging. IEEE pp. 695-700., (10.1109/ICEPT.2009.5270660)
- Liu, J., Liu, C. and Conway, P. P. 2008. Growth mechanism of copper column by electrodeposition for electronic interconnections. Presented at: 2nd Electronics System-Integration Technology Conference (ESTC 2008), Greenwich, England, 1-4 September 20082008 2nd Electronics System-Integration Technology Conference. IEEE pp. 679-684., (10.1109/ESTC.2008.4684432)
- Liu, J., Liu, C. and Conway, P. P. 2007. Crystallographic features of copper column growth by reversible pulse current electrodeposition. Presented at: IEEE 57th Electronic Components and Technology Conference (ECTC 2007), Reno, NV, USA, 29 May - 1 June 20072007 Proceedings 57th Electronic Components and Technology Conference. IEEE pp. 892-897., (10.1109/ECTC.2007.373904)
Websites
- Aghadavoudi Jolfaei, M., Liu, J., Zhou, L., Van Den Berg, F. and Davis, C. L. 2022. Non-destructive evaluation of magnetic anisotropy associated with crystallographic texture of interstitial free steels using an electromagnetic sensor. [Online]. SSRN: Elsevier. (10.2139/ssrn.4267904) Available at: http://dx.doi.org/10.2139/ssrn.4267904
Research
Microstructural Magnetic Modelling
Microstructure profoundly influences the magnetic properties of magnetic alloys, akin to how it affects the mechanical attributes of structural alloys. Established theories and empirical laws successfully correlate microstructure with mechanical properties, supported by advanced commercial simulation tools that enable precise predictions. Despite these advancements, there remains a notable knowledge and modelling deficit concerning the relationship between microstructure and magnetic properties.
The prevailing comprehension of the connection between microstructure and magnetic attributes in magnetic alloys is primarily empirical. It often remains confined to singular correlations between individual microstructural parameters and magnetic properties, and is generally restricted to a narrow scope of applicability.
In light of these challenges, our objective is to pioneer the development of a sophisticated Microstructural Magnetic Modelling System. This innovative system will serve as a cornerstone for the microstructure engineering and analytics of magnetic materials. We aim to transcend existing boundaries, enriching the modelling landscape with tools capable of not only predicting magnetic properties from microstructures, but also enabling the inversion—forecasting microstructures based on magnetic properties. Through our groundbreaking research, we seek to unveil new dimensions in the understanding and manipulation of the magnetic properties in alloys.
An overview of my research in Microstructural Magnetic Modelling
Enhance microstructural modelling with realistic microstructure
I have developed and am mainting the repository for a MATLAB-based app, EBSDPolygonizer, designed to transform EBSD grain data into polygonal representations. In this conversion, each grain is represented by a distinct polygon. This transformation allows for the direct utilization of real microstructures as geometries in finite element (FE) models and automated assignment of material parameters and boundary conditions to individual grains.
Teaching
I teach the following modules
- Foundation: EN0012 Electrical Circuits and Analysis
- Year 2: EN2714 Electrical Technology
- Year 2: EN2712 Electric Power System
- Year 3: EN3820 Introduction to Magnetic Materials
- Year 4 / MSc: EN4821/ENT758 MAGNETIC DEVICES: TRANSDUCERS, SENSORS & ACTUATORS
Biography
Dr. Jun Liu is a dedicated educator and researcher, currently serving as a Lecturer at Cardiff University since November 2020. With a rich background in materials science and engineering, Jun has cultivated extensive expertise in the nuanced domains of materials and magnetics.
Jun embarked on his academic journey at the Harbin Institute of Technology in China, earning a Bachelor of Engineering in Welding in 2001, followed by a Master of Engineering in Materials Processing Engineering in 2003. Driven by a passion for deepening their knowledge, he furthered their education at Loughborough University, where he was awarded a PhD in electrocrystallisation and electronic materials in 2010.
Before joining Cardiff University, Jun enriched his professional journey through significant research contributions in the area of non-destructive evaluation of steel microstructure. He held a position as a Research Fellow, contributing to various EPSRC and EU funded projects. His impactful work, carried out at the University of Birmingham and the University of Warwick, has been instrumental in advancing understanding and methodologies in the field.
Academic positions
- 2020 - Present: Lecturer, School of Engineering, Cardiff University
- 2014 - 2020: Postdoctoral Research Fellow, WMG, University of Warwick
- 2010 - 2014: Postodctoral Research Fellow, School of Metallurgy and Materials, University of Birmingham
Committees and reviewing
- Journal reviewer:
- Metallurgical and Materials Transaction A
- Journal of Magentism and Magnetic Materials
- Materials Science and Engineering A
- NDT & E International
- International Journal of Pressure Vessels and Piping
- IEEE Sensors Journal
- IEEE Transactions on Industrial Informatics
- IEEE Access
- Journal of Alloys and Compounds
- Thin Solid Films
- Physica Scripta
- The International Journal of Advanced Manufacturing Technology
- Sensors
- Measurements
- Smart Materials and Structures Metals
- Crystals
- Metals
Supervisions
I am interested in supervising research students in the area of magnetic materials and applications including but not limited to:
- Magnetic materials characterisation, processing and applications
- Magnetic non-destructive evaluation and testing
- Magnetic hysteresis modelling
- Finite Element modelling of electromagnetic systems
- Microstructure - physical property - mechanical property relationships
External supervision:
Co-supervisor (15%) for Ondi Mukherjee (PhD at University of Warwick) -- Simulation of Texture Development during Steel Processing (2019--Present)
Contact Details
LiuJ118@cardiff.ac.uk
+44 29208 79056
Queen's Buildings, Room Room E/3.19, 5 The Parade, Newport Road, Cardiff, CF24 3AA
+44 29208 79056
Queen's Buildings, Room Room E/3.19, 5 The Parade, Newport Road, Cardiff, CF24 3AA