報告題目：Thermo-Mechanical Processing of Aluminium Alloys–Recrystallization and Related Phenomena

報告人：Knut Marthinsen教授

主持人（邀請人）：賈海龍、查敏

報告時間：2022年12月14日15：30

線上會議ID：Zoom Meeting 953 5326 5215

入會密碼：163912

線上會議鍊接：

https://NTNU.zoom.us/j/95353265215?pwd=MTNzVHFOeTZibTlTa09La0xJM1FjQT09

主辦單位：汽車材料教育部重點實驗室，伟德bv1946

報告摘要：

Thermomechanical processing of Al-alloys (e.g., rolling and extrusion) is characterized by alternating deformation/work hardening and softening phenomena (recovery & recrystallization) accompanied by possible changes in microchemistry (i.e., the partition of alloying elements between solid solution, constitutive particles and dispersoids). The presentation will start with a general overview of the typical changes in microchemistry, microstructure and texture that take place during thermomechanical processing of aluminium alloys. This will be followed by a more detailed description of the mechanism of nucleation and growth of recrystallisation, as well as the origin of and characteristic recrystallization textures. Alloying elements in solid solution and second phase particles may have a strong effect on the recrystallization behaviour, and their effects on the recrystallization behavior (i.e., kinetics, grain structure and texture) will be discussed, including the effect of simultaneous precipitation and recrystallisation. Finally, a brief introduction to the modelling and simulation of recovery and recrystallization will be given.

個人簡介：

Prof. Knut Marthinsen is the Deputy Head of Department of Materials Science and Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway. He received his PhD in materials physics in 1986 from former NTH, Norway. His Current research activities are mainly related to the development and application of physically based computer models for the evolution of microstructure and texture during thermomechanical processing of aluminium alloys, including models for precipitation, work hardening, recrystallization and grain growth. Prof. Knut Marthinsen is Member of the Norwegian Academy of Technical Sciences (NTVA) and Member of the Royal Norwegian Society of Sciences and Letters (DKNVS). He is scientific committee members of ICAA, Rex&&GG, PTM, Thermec etc. international conferences and Editorial Member of Materials Characterization. He has published more than 200 papers including Acta Materialia, International Journal of Plasticity, Scripta Materialia etc.