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Activation of slip systems in single crystal TiZrNbV with different crystal orientations under quasi-static and dynamic loading conditions

文献类型：期刊论文

作者Ma, Peiyuan4; Zhang ZH(张子晗)4; Du ZC(杜泽晨)2,3; Dong JL(董金磊)2,3; Wang, Hang4; Ren, Kerong1,4; Ma, Xiaying4; Lin, Yuliang4; Wu XQ(吴先前)2,3; Chen, Rong4
刊名MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
出版日期2025-11-01
卷号944页码:14
关键词Refractory high-entropy alloys Crystal orientation Crystal plasticity Phonon drag Activation of slip systems
ISSN号0921-5093
DOI10.1016/j.msea.2025.148882
通讯作者Wu, Xianqian(wuxianqian@imech.ac.cn) ; Chen, Rong(r_chen@nudt.edu.cn)
英文摘要The deformation behavior of single-crystal materials is influenced by both strain rate and crystal orientation. This study examines single-crystal TiZrNbV high-entropy alloys with a body-centered cubic (BCC) structure using Vickers hardness testing, particle ballistic experiments, and crystal plasticity finite element simulations to investigate the material mechanical property and deformation mechanisms. Results reveal crystal orientation-dependent deformation characteristics: (001) and (101) crystal orientations exhibit two-fold symmetry in pileup deformation, while (111) shows three-fold symmetry. These differences arise from the geometric relationships between crystal orientation and the slip directions of active systems. Despite these variations, the alloy demonstrates orientation-insensitive mechanical strength, with quasi-static and dynamic yield strengths varying by only 1 % and 3 %, respectively, across the three orientations. This insensitivity is attributed to the widespread activation of slip systems under both loading conditions. At ultra-high strain rates (10(5)-10(7)s(-1)), the dominant strengthening mechanism shifts from thermally activated dislocation motion to phonon drag. As strain rate increases, phonon drag contributions become more significant, while the effects of short-and long-range obstacles diminish. These findings highlight the central role of crystal orientation and strain rate in governing the mechanical response of BCC-structured high-entropy alloys and provide insight into their deformation mechanisms under extreme loading conditions.
分类号一类
WOS关键词STRAIN RATES ; MODEL ; DEFORMATION ; PLASTICITY ; BEHAVIOR ; IMPACT
资助项目National Natural Science Foundation of China[U2441214] ; National Natural Science Foundation of China[12072369] ; National Natural Science Foundation of China[12472374] ; National Natural Science Foundation of China[52171166] ; Anhui University of Technology in China
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001544310000004
资助机构National Natural Science Foundation of China ; Anhui University of Technology in China
其他责任者吴先前，Chen, Rong
源URL[http://dspace.imech.ac.cn/handle/311007/102178]  
专题力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位1.Air Force Engn Univ, Aviat Maintenance NCO Sch, Xinyang 464001, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
3.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China;
4.Natl Univ Def Technol, Coll Sci, Changsha 410008, Peoples R China;
推荐引用方式
GB/T 7714		 Ma, Peiyuan,Zhang ZH,Du ZC,et al. Activation of slip systems in single crystal TiZrNbV with different crystal orientations under quasi-static and dynamic loading conditions[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2025,944:14.
APA Ma, Peiyuan.,张子晗.,杜泽晨.,董金磊.,Wang, Hang.,...&Chen, Rong.(2025).Activation of slip systems in single crystal TiZrNbV with different crystal orientations under quasi-static and dynamic loading conditions.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,944,14.
MLA Ma, Peiyuan,et al."Activation of slip systems in single crystal TiZrNbV with different crystal orientations under quasi-static and dynamic loading conditions".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 944(2025):14.

入库方式： OAI收割

来源：力学研究所

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