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The heterogeneous deformation of a polycrystalline aggregate under severe plastic deformation was reproduced with finite element analysis by using single-crystal plasticity to characterize the evolution process of the heterogeneity. Finite element analyses of a periodic polycrystalline aggregate were carried out to simulate the deformation process corresponding to the multi-pass equal-channel angular extrusion process, which reached over 250% of the macroscopic logarithmic accumulated plastic strain. The numerical results were analyzed from multi-scale perspectives: the macroscopic response, evolution of the crystallographic orientation, and deformation state of the microstructure. This study addressed the importance of finite element discretization to reproduce the heterogeneous deformat

権利情報:

• In Copyright
  In Copyright

キーワード: crystal plasticity, severe plastic deformation, texture, finite element analysis

刊行年月日: 2016-06-23

出版者: Japan Institute of Metals

掲載誌:

• MATERIALS TRANSACTIONS (ISSN: 13459678) vol. 57 issue. 9 p. 1404-1410

研究助成金:

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.2320/matertrans.MH201514

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更新時刻: 2024-01-05 22:11:48 +0900

MDRでの公開時刻: 2023-02-28 12:01:35 +0900