Orientation dependence of the deformation microstructure in compressed aluminum

SCRIPTA MATERIALIA

卷:66

Article

Le, G. M.¹  Godfrey, A.¹  Hong, C. S.²  Huang, X.²  Winther, G.² 

[1] Tsinghua Univ, Dept Mat Sci & Engn, Adv Mat Lab, Beijing 100084, Peoples R China

[2] Tech Univ Denmark, Danish Chinese Ctr Nanomet, Mat Res Div, Riso Natl Lab Sustainable Energy, DK-4000 Roskilde, Denmark

关键词: Dislocation boundaries;    Transmission electron microscopy (TEM);    Deformation structure;    Aluminum;   

DOI  :  10.1016/j.scriptamat.2011.11.034

来源: Elsevier

【 摘 要 】

The orientation dependence of the deformation microstructure has been investigated in aluminum compressed to 20% reduction. The dislocation boundaries formed can be classified, as for tension, into one of three types: dislocation cells (Type 2), and extended planar boundaries near (Type 1) or not near (Type 3) a {1 1 1} trace. The Type 3 boundaries, however, show some clear differences to those seen in tension, suggesting differences in the dislocation interactions leading to boundary formation between tension and compression. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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