Crystal plasticity study on deformation behavior of dual-phase Ti alloy under biaxial loading conditions

doi:10.1016/j.commatsci.2024.113515

IMR OpenIR

	Crystal plasticity study on deformation behavior of dual-phase Ti alloy under biaxial loading conditions
	Liu, Zixiang 1,2; Zhao, Tong 1,3; Li, Xuexiong 1,2; Zhang, Jinhu 1,2; Xu, Dongsheng 1,2; Yang, Rui 1,2
通讯作者	Xu, Dongsheng(dsxu@imr.ac.cn)
	2025-01-31
发表期刊	COMPUTATIONAL MATERIALS SCIENCE
ISSN	0927-0256
卷号	247 页码:10
摘要	Titanium alloys are widely used because of their excellent mechanical properties, but the complex service environment requires a profound understanding of their deformation mechanism and mechanical behavior. The study of biaxial mechanical behavior has been plagued for decades by the inconvenience of experiments and the difficulty of ensuring the accuracy. To get a further understanding of the micromechanical behavior and corresponding deformation mechanisms of duplex titanium alloys under multiaxial loading, crystal plasticity modeling with a spectrum solver was employed in this work. The results were simultaneously analyzed using post-processing and other visualization methods to explore the disparity in deformation mechanisms between uniaxial and biaxial loading scenarios. The uniaxial tensile mechanical response of CP-Ti and Ti64 alloy were well captured using crystal plasticity modeling compared to experimental results, demonstrating both the reliability of the established model and constitutive parameters used. A strengthening effect under biaxial loading occurred owing to unique structural characteristics and mechanical constraints associated with tensile direction of hexagonal crystal structure. The region of strain bands that emerges following an increase in the biaxial ratio indicates that unbalanced biaxial stress loading can cause fracture. Prismatic slip along with basal slip predominantly governs deformation process of Ti64 alloy, while {1012} tensile twinning facilitates plastic deformation when there is limited availability of slip systems. These conclusions, on one hand, demonstrate the highfidelity characteristic of simulation techniques and, on the other, enhance the understanding of the mechanical responses and damage mechanisms in complex service environments.
关键词	Titanium Biaxial tension Crystal plasticity Mechanical behavior Deformation mechanism
资助者	National Science and Technology Major Project ; National Key R & D Program of China ; National Key Laboratory of Science and Technology on Materials under Shock Impact ; CAS Informatization Project
DOI	10.1016/j.commatsci.2024.113515
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project[J2019-VI-0005-0119] ; National Key R & D Program of China[2021YFB3702604] ; National Key R & D Program of China[2021YFA1600601] ; National Key Laboratory of Science and Technology on Materials under Shock Impact[6142902210301] ; CAS Informatization Project[CAS-WX2021PY-0103]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001359496700001
出版者	ELSEVIER
引用统计	被引频次：1[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/321006/191637
专题	中国科学院金属研究所
通讯作者	Xu, Dongsheng
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zixiang,Zhao, Tong,Li, Xuexiong,et al. Crystal plasticity study on deformation behavior of dual-phase Ti alloy under biaxial loading conditions[J]. COMPUTATIONAL MATERIALS SCIENCE,2025,247:10.
APA	Liu, Zixiang,Zhao, Tong,Li, Xuexiong,Zhang, Jinhu,Xu, Dongsheng,&Yang, Rui.(2025).Crystal plasticity study on deformation behavior of dual-phase Ti alloy under biaxial loading conditions.COMPUTATIONAL MATERIALS SCIENCE,247,10.
MLA	Liu, Zixiang,et al."Crystal plasticity study on deformation behavior of dual-phase Ti alloy under biaxial loading conditions".COMPUTATIONAL MATERIALS SCIENCE 247(2025):10.