Influence of Grain Orientation and Grain Boundary Features on Local Stress State of Cu-8Al-11Mn Alloy Investigated Using Crystal Plasticity Finite Element Method

doi:10.3390/ma15196950

IMR OpenIR

	Influence of Grain Orientation and Grain Boundary Features on Local Stress State of Cu-8Al-11Mn Alloy Investigated Using Crystal Plasticity Finite Element Method
	Zheng, Ce 1; Xu, Lijun 1; Feng, Xiaohui 1; Huang, Qiuyan 1; Li, Yingju 1; Zhang, Zhongwu 2; Yang, Yuansheng 1
通讯作者	Yang, Yuansheng(ysyang@imr.ac.cn)
	2022-10-01
发表期刊	MATERIALS
卷号	15 期号:19 页码:18
摘要	Reducing the local stress in the vicinity of the grain boundaries is a favorable way to improve the super-elastic properties of super-elastic alloys. The crystal plasticity finite element method (CPFEM) was applied in this study to simulate the deformation behavior and local stress of a super-elastic Cu-8Al-11Mn (wt.%) alloy containing single grains with various orientations, columnar grains with different misorientation angles, and tri-crystals with distinct grain boundary morphologies. The results indicated that the stress distribution of single grains presented obvious orientation dependence during deformation. Uniformly distributed stress was observed in grains with orientations of 0 degrees and 90 degrees when more slip systems were activated during deformation. With the increase in the misorientation angles of columnar grains, the stresses in the vicinity of the grain boundaries increased, which was related to the difference in the shear stress of the slip systems in adjacent grains. When the difference in the shear stress of the slip systems in two adjacent grains was large, a local stress concentration formed in the vicinity of the grain boundary. Compared with the triple-junction grain boundaries, the local stresses of the straight and vertical grain boundaries were smaller, which was closely related to the number of activated slip systems on both sides of the grain boundary. The above results were obtained experimentally and could be used to design super-elastic alloys with high performance.
关键词	Cu-Al-Mn alloy crystal plasticity finite element method local stress grain boundary deformation mechanism
资助者	National Key Research and Development Program of China
DOI	10.3390/ma15196950
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2018YFE0115800]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000866996600001
出版者	MDPI
引用统计	被引频次：3[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/321006/176059
专题	中国科学院金属研究所
通讯作者	Yang, Yuansheng
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Harbin Engn Univ, Coll Mat Sci & Chem Engn, Key Lab Superlight Mat & Surface Technol, Minist Educ, Harbin 150001, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Ce,Xu, Lijun,Feng, Xiaohui,et al. Influence of Grain Orientation and Grain Boundary Features on Local Stress State of Cu-8Al-11Mn Alloy Investigated Using Crystal Plasticity Finite Element Method[J]. MATERIALS,2022,15(19):18.
APA	Zheng, Ce.,Xu, Lijun.,Feng, Xiaohui.,Huang, Qiuyan.,Li, Yingju.,...&Yang, Yuansheng.(2022).Influence of Grain Orientation and Grain Boundary Features on Local Stress State of Cu-8Al-11Mn Alloy Investigated Using Crystal Plasticity Finite Element Method.MATERIALS,15(19),18.
MLA	Zheng, Ce,et al."Influence of Grain Orientation and Grain Boundary Features on Local Stress State of Cu-8Al-11Mn Alloy Investigated Using Crystal Plasticity Finite Element Method".MATERIALS 15.19(2022):18.