Academic Staff

Brief Biosketch

Dr Jiaxin Lv is currently a Research Assistant Professor in the Department of Industrial and Systems Engineering (ISE) at The Hong Kong Polytechnic University. Prior to joining PolyU, she worked as a Postdoctoral Research Associate in the Department of Mechanical Engineering at Imperial College London, where she also obtained her PhD. She holds both BEng and MSc degrees from Tongji University.

Dr Lv's research focuses on advanced manufacturing technologies (e.g. extrusion and bulging) and multi-scale physically based material modeling. She is the inventor of the novel Wide-profile Extrusion (WiExtrude®) technology, which enables rapid, cost-effective production of wide-thin light-alloy profiles with complex cross-sections. She also developed Flexible Curved-Profile Extrusion (Flextrude®), a breakthrough technique that allows direct extrusion of profiles with designed curvatures, achieving up to 40–50% cost reduction compared to conventional methods. Her research has been widely published in leading journals such as JMPT, JMP, IJMS, JCS, MSEA, and JAC. She is also a selected member of the Innovate UK ICURe Discover Programme.

Research Interests

• Materials Processing and Modelling
• Metal forming
• Materials Characterisation

Selected Publications

1. J. Lv, X. Lu, J. Yu, Z. Shi, J. Lin, Curvature, microstructural and mechanical property of an asymmetrical profile with weld produced by sideways extrusion with variable speeds. J. Mater. Process. Technol., 2025, 336: 118699.
2. Z. Zhang, J. Lv*, C. Tong, Z. Shi, J. Lin, Investigation of microstructure and mechanical properties of welds in wide stiffened panels from hot multi-container extrusion, J. Manuf. Process, 2025, 136: 305-315.
3. J. Shuai, J. Lv*, Z. Shi, J. Lin, A study of dynamic recovery and recrystallisation mechanisms in aluminium alloy AA7050 at different thermomechanical processing conditions, Mater. Sci. Eng., A, 2024, 914: 147117.
4. D. Chen, J. Lv*, C. Tong, X. Sun, X. Meng, Z. Fu, Q. Tu, L. Liu, Z. Shi, J. Lin, Optimisation of sideways extrusion for producing three-dimensional curved asymmetric aluminium alloy profile based on Grey-Taguchi relational analysis. J. Mater. Res Technol, 2024, 28: 4791-4804.
5. Y. Alfawzan, J. Lv*, Z. Shi, J. Lin, An investigation of the curvature variation in rolling a stiffened panel, Int. J. Adv. Manuf. Tech, 2025.
6. J. Lv, J. Yu, Z. Shi, W. Li, J. Lin, Feasibility study of a novel multi-container extrusion method for manufacturing wide aluminium profiles with low force. J. Manuf. Process, 2023, 85: 584-593.
7. J. Lv, J. Yu, Z. Shi, W. Li, J. Lin, Analysis of solid-state welding in extruding wide aluminium hollow profiles using a new three-container extrusion system. J. Manuf. Process, 2023, 94: 146-158.
8. J. Lv, Y. Xiao, Y. Zhou, Y. Xie, Characterization and modeling of the creep behavior of fiber composites with tension and compression asymmetry. Int. J. Mech Sci, 2020, 170: 105340.
9. J. Lv, J. Zheng, V.A. Yardley, Z. Shi, J. Lin, A review of microstructural evolution and modelling of aluminium alloys under hot forming conditions. Metals, 2020, 10(11): 1516.
10. K. Fu, J. Zheng, Z. He, J. Lv, K. Zheng, S. Yuan, Comparative study of the strain and strain rate hardening mechanisms and its workability during hot deformation of TC4 titanium alloys, J. Alloys Compd, 2024, 1009: 176989.
11. Z. Zhang, C. Tong, W. Zhou, S. Jiang, J. Lv, Z. Shi, J. Lin, Investigation of the mechanisms on the abnormal features observed in thermal-mechanical testing of AA6061 under extrusion conditions. Mater. Sci. Eng., A, 2023, 884: 145537.
12. Y. Xie, Y. Xiao, J. Lv, Z. Zhang, Y. Zhou, Y. Xue, Influence of creep on preload relaxation of bolted composite joints: Modelling and numerical simulation. Compos Struct, 2020, 245: 112332.