Torsional Fatigue Cracking and Fracture Behaviors of Cold-Drawn Copper: Effects of Microstructure and Axial Stress

doi:10.1007/s40195-019-00965-5

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	Torsional Fatigue Cracking and Fracture Behaviors of Cold-Drawn Copper: Effects of Microstructure and Axial Stress
	Li, Rong-Hua 1; Zhang, Peng 2; Zhang, Zhe-Feng 2
通讯作者	Li, Rong-Hua(rhli11b@alum.imr.ac.cn) ; Zhang, Peng(pengzhang@imr.ac.cn)
	2019-12-01
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
卷号	32 期号:12 页码:1521-1529
摘要	The fatigue cracking and fracture behavior of cold-drawn copper subjected to cyclic torsional loading were investigated in this study. It was found that with increasing stress amplitude, the fracture mode of cold-drawn copper gradually changes from a shear fracture on transverse maximum shear stress plane to a mixed shear mode on both transverse and longitudinal shear planes and finally turns to the shear fracture on multiple longitudinal shear planes. Combining the cracking morphology and the relationship between torsional fatigue cracking and the grain boundaries, the fracture mechanism of cold-drawn copper under cyclic torsional loading was analyzed and proposed by considering the effects of the microstructure and axial stress caused by torsion. Because of the promotion of the grain boundary distribution on longitudinal crack propagation and the inhibition of axial stress on transverse crack grown, the tendency of crack propagation along the longitudinal direction increases with increasing stress levels.
关键词	Torsion Fatigue behavior Crack propagation Fracture mechanisms Axial stress Copper
资助者	National Natural Science Foundation of China ; Natural Science Foundation of Liaoning
DOI	10.1007/s40195-019-00965-5
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51771208] ; Natural Science Foundation of Liaoning[2019-ZD-0059]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000493679100003
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/136966
专题	中国科学院金属研究所
通讯作者	Li, Rong-Hua; Zhang, Peng
作者单位	1.Liaoning Shihua Univ, Sch Mech Engn, Fushun 113001, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Lab Fatigue & Fracture Mat, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Li, Rong-Hua,Zhang, Peng,Zhang, Zhe-Feng. Torsional Fatigue Cracking and Fracture Behaviors of Cold-Drawn Copper: Effects of Microstructure and Axial Stress[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2019,32(12):1521-1529.
APA	Li, Rong-Hua,Zhang, Peng,&Zhang, Zhe-Feng.(2019).Torsional Fatigue Cracking and Fracture Behaviors of Cold-Drawn Copper: Effects of Microstructure and Axial Stress.ACTA METALLURGICA SINICA-ENGLISH LETTERS,32(12),1521-1529.
MLA	Li, Rong-Hua,et al."Torsional Fatigue Cracking and Fracture Behaviors of Cold-Drawn Copper: Effects of Microstructure and Axial Stress".ACTA METALLURGICA SINICA-ENGLISH LETTERS 32.12(2019):1521-1529.