Grain coarsening behavior in a nanocrystalline copper subjected to sliding friction

被引：20
作者：
Zhang, Y. S. [1 ]
Niu, H. Z. [1 ]
Zhang, L. C. [2 ]
Bai, X. F. [1 ]
Zhang, X. M. [1 ]
Zhang, P. X. [1 ]
机构：
[1] Northwest Inst Nonferrous Met Res, Xian 710016, Peoples R China
[2] Edith Cowan Univ, Sch Engn, Perth, WA 6027, Australia
来源：
MATERIALS LETTERS | 2014年 / 123卷
基金：
中国国家自然科学基金;
关键词：
Nanocrystalline materials; Crystal growth; Surfaces; ROOM-TEMPERATURE; SURFACE-LAYER; DEFORMATION; GROWTH; EVOLUTION; ALLOYS; WEAR; AL;
D O I：
10.1016/j.matlet.2014.02.050
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A grain coarsening behavior was reported in this work in nanocrystalline copper during sliding friction. The cross-sectional microstructure and micro-hardness of the pure copper subjected to sliding friction were investigated in detail. A nano-grained surface layer of copper was obtained after sliding against a WC-Co ball for the first 100 cycles. However, a pronounced grain coarsening was observed during the subsequent sliding cycles. Such a behavior is dominated by high stress, high strain as well as large amplitude adopted in sliding friction. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：261 / 264
页数：4
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