Dynamic recrystallization initiated by direct grain reorientation at high-angle grain boundary in -titanium

doi:10.1557/jmr.2019.125

IMR OpenIR

	Dynamic recrystallization initiated by direct grain reorientation at high-angle grain boundary in -titanium
	Wang, Hao 1,2; Bao, Qili L.1,2; Zhou, Gang 1,2; Qiu, J. K.1,2; Yang, Yi 3; Ma, Y. J.1,2; Bai, Chunguang G.1,2; Xu, Dongsheng S.1,2; Rugg, David 4; Huang, Aijun J.3; Hu, Qing-Miao 1,2; Lei, J. F.1,2; Yang, Rui 1,2
通讯作者	Wang, Hao(haowang@imr.ac.cn)
	2019-05-14
发表期刊	JOURNAL OF MATERIALS RESEARCH
ISSN	0884-2914
卷号	34 期号:9 页码:1608-1621
摘要	Employing atomic-scale simulations, the response of a high-angle grain boundary (GB), the soft/hard GB, against external loading was systematically investigated. Under tensile loading close to the hard orientation, strain-induced dynamic recrystallization was observed to initiate through direct soft-to-hard grain reorientation, which was triggered by stress mismatch, inhibited by surface tension from the soft-hard GB, and proceeded by interface ledges. Such grain reorientation corresponds with expansion and contraction of the hard grain along and perpendicular to the loading direction, respectively, accompanied by local atomic shuffling, providing relatively large normal strain of 8.3% with activation energy of 0.04 eV per atom. Tensile strain and residual dislocations on the hard/soft GB facilitate the initiation of dynamic recrystallization by lowering the energy barrier and the critical stress for grain reorientation, respectively.
关键词	plastic deformation grain boundary recrystallization reorientation atomistic simulation
资助者	National Key Research and Development Program of China ; Natural Science Foundation of China ; Chinese Academy of Sciences ; Youth Innovation Promotion Association, CAS
DOI	10.1557/jmr.2019.125
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2016YFB0701304] ; Natural Science Foundation of China[51671195] ; Chinese Academy of Sciences[QYZDJ-SSW-JSC031-01] ; Chinese Academy of Sciences[XXH13506-304] ; Youth Innovation Promotion Association, CAS[2015151]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000471320700015
出版者	CAMBRIDGE UNIV PRESS
引用统计	被引频次：4[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/321006/133896
专题	中国科学院金属研究所
通讯作者	Wang, Hao
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Univ Shanghai Sci & Technol, Shanghai 200093, Peoples R China 4.Rolls Royce PLC, Derby DE24 8BJ, England
推荐引用方式 GB/T 7714	Wang, Hao,Bao, Qili L.,Zhou, Gang,et al. Dynamic recrystallization initiated by direct grain reorientation at high-angle grain boundary in -titanium[J]. JOURNAL OF MATERIALS RESEARCH,2019,34(9):1608-1621.
APA	Wang, Hao.,Bao, Qili L..,Zhou, Gang.,Qiu, J. K..,Yang, Yi.,...&Yang, Rui.(2019).Dynamic recrystallization initiated by direct grain reorientation at high-angle grain boundary in -titanium.JOURNAL OF MATERIALS RESEARCH,34(9),1608-1621.
MLA	Wang, Hao,et al."Dynamic recrystallization initiated by direct grain reorientation at high-angle grain boundary in -titanium".JOURNAL OF MATERIALS RESEARCH 34.9(2019):1608-1621.