Interference effect on friction behavior of asperities on single crystal copper

doi:10.1016/j.triboint.2014.08.007

IMECH-IR > 非线性力学国家重点实验室

	Interference effect on friction behavior of asperities on single crystal copper
	Liu XM(刘小明); Zhang B; Wei YG(魏悦广); Liu, XM (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
发表期刊	Tribology International
	2014-12
卷号	81 期号:1 页码:169-178
ISSN	0301-679X
摘要	By using Green function molecular dynamics method, we systematically study the friction behavior of a single asperity and asperity array over the (1 1 1) surface of single crystal copper. We find that internal plastic behavior (burst of stacking faults, dislocation emission and propagation) is a promising reason for the higher value of static friction coefficient than that of dynamics friction in non-adhesive scratch. For the rough surface, however, the difference between static and dynamic friction coefficients disappear due to the interference between asperities. The interference dramatically increases the friction coefficient by introducing atomic scale plastic features (pile-up atoms, stacking faults, and U-shape dislocation loop). (C) 2014 Elsevier Ltd. All rights reserved.
关键词	Friction Transition Plastic Behavior Green Function Molecular Dynamics Asperity Interference
DOI	10.1016/j.triboint.2014.08.007
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000345469200018
关键词[WOS]	MOLECULAR-DYNAMICS SIMULATIONS ; ATOMIC-SCALE ; CONTACT ; ROUGHNESS ; NANOSCALE
WOS研究方向	Engineering
WOS类目	Engineering, Mechanical
项目资助者	This work was supported by National Basic Research Program of China through 2012CB937500, and by the National Natural Science Foundation of China (Grant no.11202214, no. 91216108, no. 11372131), by State Key Laboratory of Mechanics and Control of Mechanical Structures(NUAA Grant no. MCMS-0114G01). Insightful discussions about applying Green function method with Prof. M.H. Muser and Prof. L.T. Kong are gratefully acknowledged. Authors thank Prof. Yujie Wei for useful comments.
课题组名称	LNM新型材料及结构的多尺度力学
论文分区	二类
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/49458
专题	非线性力学国家重点实验室
通讯作者	Liu, XM (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Liu XM,Zhang B,Wei YG,et al. Interference effect on friction behavior of asperities on single crystal copper[J]. Tribology International,2014,81,1,:169-178.
APA	Liu XM,Zhang B,Wei YG,&Liu, XM .(2014).Interference effect on friction behavior of asperities on single crystal copper.Tribology International,81(1),169-178.
MLA	Liu XM,et al."Interference effect on friction behavior of asperities on single crystal copper".Tribology International 81.1(2014):169-178.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
IMCAS-J2014-339.pdf（3235KB）	期刊论文	出版稿	开放获取	CC BY-ND	浏览下载