Phase-field study on the formation of a variant clusters induced by elastoplastic stress field around the void in titanium alloys

doi:10.1016/j.commatsci.2022.111781

IMR OpenIR

	Phase-field study on the formation of a variant clusters induced by elastoplastic stress field around the void in titanium alloys
	Zhang, Jinhu 1,2; Guo, Hui 1,2,3; Xu, Haisheng 1,2,3; Xu, Dongsheng 1,2,3; Yang, Rui 1,2,3
通讯作者	Zhang, Jinhu(jinhuzhang@imr.ac.cn) ; Xu, Dongsheng(dsxu@imr.ac.cn)
	2022-12-01
发表期刊	COMPUTATIONAL MATERIALS SCIENCE
ISSN	0927-0256
卷号	215 页码:11
摘要	The formation of alpha variant clusters during beta to alpha transformation under the elastoplastic stress field around a void was investigated using J2 plasticity theory and phase field simulation. Compared with elastic materials, taking an elastic-plastic phase field model in the present work, the stress fields around the void can be partially relaxed by plastic deformation, and the maximum amplitude of the stress reduces. With the increase of the void size, the selection effect on alpha variant clusters in titanium alloys is gradually enhanced. The variant selection is asymmetric under the conditions of applied tensile and compressive stresses, and the influence of the stress fields around the void under external shear stress is stronger. These could be predicted and confirmed by the interaction energy calculations between the stress fields around the void and alpha variants. Some interesting variant clusters appear, such as "windmill ", "butterfly ", and "wing " types under external tensile, compressive and shear stresses respectively. The "equilateral triangle ", "nearly parallel " and "quasi equilateral triangle " type variant clusters can form through sympathetic nucleation, given the particular alpha/alpha orientation relationship corresponding to lower energy. The ultimate microstructures of alpha variant clusters around a void are determined by both inter -variant and variant-external stress field interactions. The high-throughput calculations under different applied stress states would provide support for the generation and optimization of the microstructures of titanium alloys in follow-up work.
关键词	Phase-field method Void Elastoplastic stress field Phase transformation Variant cluster
资助者	National Key R&D Program of China ; National Science and Technology Major Project ; Informatization Plan of Chinese Academy of Sciences ; National Key Laboratory Foundation of Science and Technology on Materials under Shock and Impact ; Natural Science Foundation of Liaoning
DOI	10.1016/j.commatsci.2022.111781
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2021YFB3702604] ; National Key R&D Program of China[2021YFA1600601] ; National Science and Technology Major Project[J2019-VI-0005-0119] ; Informatization Plan of Chinese Academy of Sciences[CAS-WX2021PY-0103] ; National Key Laboratory Foundation of Science and Technology on Materials under Shock and Impact[6142902210301] ; Natural Science Foundation of Liaoning[2021-MS-010]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:000861828700003
出版者	ELSEVIER
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/321006/175567
专题	中国科学院金属研究所
通讯作者	Zhang, Jinhu; Xu, Dongsheng
作者单位	1.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shichangxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jinhu,Guo, Hui,Xu, Haisheng,et al. Phase-field study on the formation of a variant clusters induced by elastoplastic stress field around the void in titanium alloys[J]. COMPUTATIONAL MATERIALS SCIENCE,2022,215:11.
APA	Zhang, Jinhu,Guo, Hui,Xu, Haisheng,Xu, Dongsheng,&Yang, Rui.(2022).Phase-field study on the formation of a variant clusters induced by elastoplastic stress field around the void in titanium alloys.COMPUTATIONAL MATERIALS SCIENCE,215,11.
MLA	Zhang, Jinhu,et al."Phase-field study on the formation of a variant clusters induced by elastoplastic stress field around the void in titanium alloys".COMPUTATIONAL MATERIALS SCIENCE 215(2022):11.