The premature necking of twinning-induced plasticity steels

IMR OpenIR

	The premature necking of twinning-induced plasticity steels
	Yang, C. L.; Zhang, Z. J.; Zhang, P.; Zhang, Z. F.; Zhang, ZJ; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
	2017-09-01
发表期刊	PERGAMON-ELSEVIER SCIENCE LTD
ISSN	1359-6454
卷号	136 页码:1-10
摘要	An unusual necking behavior was found in twinning-induced plasticity (TWIP) steels during tensile tests, which is quite different from that observed on most ductile metals. A sharp drop of the strain-hardening rate (CI) arises before necking initiation, rather than after it, leading to the premature necking of TWIP steels. Through carefully examining the evolution of macroscopic defects at various tensile strains using three-dimensional X-ray tomography (3D-XRT), this premature necking behavior was attributed to the multiplication of macroscopic voids during plastic deformation. Combining with the previous theories and present characterizations on the evolution of macroscopic voids, the mechanism of the unusual necking behavior in TWIP steels was quantificationally revealed. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.; An unusual necking behavior was found in twinning-induced plasticity (TWIP) steels during tensile tests, which is quite different from that observed on most ductile metals. A sharp drop of the strain-hardening rate (CI) arises before necking initiation, rather than after it, leading to the premature necking of TWIP steels. Through carefully examining the evolution of macroscopic defects at various tensile strains using three-dimensional X-ray tomography (3D-XRT), this premature necking behavior was attributed to the multiplication of macroscopic voids during plastic deformation. Combining with the previous theories and present characterizations on the evolution of macroscopic voids, the mechanism of the unusual necking behavior in TWIP steels was quantificationally revealed. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	[yang, c. l. ; zhang, z. j. ; zhang, p. ; zhang, z. f.] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [yang, c. l. ; zhang, z. f.] univ chinese acad sci, 19 yuquan rd, beijing 100049, peoples r china
关键词	Twinning-induced Plasticity Steel Voids Necking Strain-hardening Rate
学科领域	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者	National Natural Science Foundation of China (NSFC) [51401207, 51331007, U1664253]
收录类别	SCI
语种	英语
WOS记录号	WOS:000407665300001
引用统计	被引频次：49[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/321006/79129
专题	中国科学院金属研究所
通讯作者	Zhang, ZJ; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Yang, C. L.,Zhang, Z. J.,Zhang, P.,et al. The premature necking of twinning-induced plasticity steels[J]. PERGAMON-ELSEVIER SCIENCE LTD,2017,136:1-10.
APA	Yang, C. L.,Zhang, Z. J.,Zhang, P.,Zhang, Z. F.,Zhang, ZJ,&Zhang, ZF .(2017).The premature necking of twinning-induced plasticity steels.PERGAMON-ELSEVIER SCIENCE LTD,136,1-10.
MLA	Yang, C. L.,et al."The premature necking of twinning-induced plasticity steels".PERGAMON-ELSEVIER SCIENCE LTD 136(2017):1-10.