Texture evolution and mechanical behaviour of irradiated face-centred cubic metals
Texture evolution and mechanical behaviour of irradiated face-centred cubic metals
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辐照面心立方金属的织构演变和力学行为
DOI：
10.1098/rspa.2017.0604
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发表时间：
2018-02
影响因子：
3.5
通讯作者：
Duan Huiling
中科院分区：
文献类型：
--
作者：
Chen Lirong;Xiao Xiazi;Yu Long;Chu Haijian;Duan Huiling
提出了一种基于物理的理论模型来研究辐照面心立方金属的力学行为和晶体织构演化。该模型能够捕捉辐照多晶材料的主要特征，包括辐照硬化、屈服后软化和塑性局部化。数值结果表明，未辐照和辐照应力-应变关系与实验数据非常吻合。晶体织构的研究表明，未辐照金属在拉伸载荷下初始随机分布的织构可以演变成[111]和[100]织构的混合。对于辐照情况，晶体织构以不同的方式发展，并且[110]织构的额外部分演变为[100]和[111]织构。因此，与未辐照情况相比，[100]和[111]织构更快地占据主导地位，因为[100]和[111]取向晶体具有更高的强度，并且它们的塑性变形行为比其他取向晶体更活跃。可以得出结论，辐照引起的缺陷会影响金属的机械行为和织构演变，两者都与辐照硬化密切相关。
A physically based theoretical model is proposed to investigate the mechanical behaviour and crystallographic texture evolution of irradiated face-centred cubic metals. This model is capable of capturing the main features of irradiated polycrystalline materials including irradiation hardening, post-yield softening and plasticity localization. Numerical results show a good agreement with experimental data for both unirradiated and irradiated stress–strain relationships. The study of crystallographic texture reveals that the initial randomly distributed texture of unirradiated metals under tensile loading can evolve into a mixture of [111] and [100] textures. Regarding the irradiated case, crystallographic texture develops in a different way, and an extra part of [110] texture evolves into [100] and [111] textures. Thus, [100] and [111] textures become dominant more quickly compared with those of the unirradiated case for the reason that [100] and [111]-oriented crystals have higher strength, and their plastic deformation behaviours are more active than other oriented crystals. It can be concluded that irradiation-induced defects can affect both the mechanical behaviour and texture evolution of metals, both of which are closely related to irradiation hardening.
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影响因子：
37.4
作者：
A. Luft
通讯作者：
A. Luft
影响因子：
4.7
作者：
C. Gu;M. Hoffman;L. Toth;Yudong Zhang
通讯作者：
C. Gu;M. Hoffman;L. Toth;Yudong Zhang
影响因子：
64.8
作者：
de la Rubia, TD;Zbib, HM;Caturla, MJ
通讯作者：
Caturla, MJ
影响因子：
3.7
作者：
Y. Satoh;T. Yoshiie;H. Mori;M. Kiritani
通讯作者：
Y. Satoh;T. Yoshiie;H. Mori;M. Kiritani
DOI：
10.1016/s0022-5096(01)00134-x
发表时间：
2002-09-01
影响因子：
5.3
作者：
Arsenlis, A;Parks, DM
通讯作者：
Parks, DM