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题名: Shear-Coupled Grain Growth and Texture Development in a Nanocrystalline Ni-Fe Alloy during Cold Rolling
作者: Li, L; Ungar, T; Toth, LS; Skrotzki, W; Wang, YD; Ren, Y; Choo, H; Fogarassy, Z; Zhou, XT; Liaw, PK
刊名: METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
出版日期: 2016
卷号: 47A, 期号:12, 页码:6632-6644
DOI: 10.1007/s11661-016-3753-7
通讯作者: Ungar, T (reprint author), Eotvos Univ Budapest, Dept Mat Phys, POB 32, H-1518 Budapest, Hungary.
文章类型: 期刊论文
英文摘要: The evolution of texture, grain size, grain shape, dislocation, and twin density has been determined by synchrotron X-ray diffraction and line profile analysis in a nanocrystalline Ni-Fe alloy after cold rolling along different directions related to the initial fiber and the long axis of grains. The texture evolution has been simulated by the Taylor-type relaxed-constraints viscoplastic polycrystal model. The simulations were based on the activity of partial dislocations in correlation with the experimental results of dislocation density determination. The concept of stress-induced shear coupling is supported and strengthened by both the texture simulations and the experimentally determined evolution of the microstructure parameters. Grain growth and texture evolution are shown to proceed by the shear coupling mechanism supported by dislocation activity as long as the grain size is not smaller than about 20 nm.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000387856000095
ISSN号: 1073-5623
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26620
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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