Micro-Mechanisms of Shear Deformation Localization of Ti6Al4V Alloy under Shear-Compressive Loading Conditions

doi:10.3390/ma13245646

IMECH-IR > 流固耦合系统力学重点实验室

	Micro-Mechanisms of Shear Deformation Localization of Ti6Al4V Alloy under Shear-Compressive Loading Conditions
	Li LT ; Jin T ; Shuang F(双飞); Li ZQ; Wang ZH ; Ma W(马维)
发表期刊	MATERIALS
	2020-12-01
卷号	13 期号:24 页码:5646
摘要	Titanium Ti6Al4V alloy is a superior material that has extremely high strength, hardness and good anti-corrosion resistance. Dynamic shear-compression experiments were carried out on the alloy to investigate the micro-mechanisms of adiabatic shear banding (ASB) formation. The split Hopkinson pressure bar (SHPB) setup were used for the tests at high strain rates. It was found that the shear deformation localization (SDL) was considerably affected by the complex loading conditions. The micro-mechanisms for the ASB formation relied on different shear compressive proportion of loadings (SCLPs). Scanning electron microscope (SEM) observations showed that the ASB width was related with the SCLP and the fracture failure of alloy was induced by the nucleation and growth of microvoids. In transmission electron microscope (TEM) analysis, the microstructural changes of material within the ASB were characterized by dynamic recrystallization (DRX) and twining grain formation, dislocation migration, and stacking and grain refining processes. The results in this article demonstrates a complex image of microstructural evolution of alloy in the shear localization process.
关键词	titanium alloy deformation localization microcosmic mechanism shear-compression specimen dynamic combined loading
DOI	10.3390/ma13245646
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000602851800001
关键词[WOS]	PURE TI ; MICROSTRUCTURAL EVOLUTION ; MECHANICAL-PROPERTIES ; INSTABILITY ; TI-6AL-4V ; BEHAVIOR
项目资助者	National Nature Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11572337, 11772346]
论文分区	二类
力学所作者排名	3
RpAuthor	Wang, ZH
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/85787
专题	流固耦合系统力学重点实验室
作者单位	1.{Li, Lintao、Jin, Tao、Li, Zhiqiang、Wang, Zhihua、Ma, Wei} Taiyuan Univ Technol, Inst Applicat Mech, Taiyuan 030024, Peoples R China 2.{Shuang, Fei、Ma, Wei} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 3.{Shuang, Fei} Univ Florida, Dept Mech & Aerosp Engn, Gainesville, FL 32611 USA
推荐引用方式 GB/T 7714	Li LT,Jin T,Shuang F,et al. Micro-Mechanisms of Shear Deformation Localization of Ti6Al4V Alloy under Shear-Compressive Loading Conditions[J]. MATERIALS,2020,13,24,:5646.
APA	Li LT,Jin T,双飞,Li ZQ,Wang ZH,&马维.(2020).Micro-Mechanisms of Shear Deformation Localization of Ti6Al4V Alloy under Shear-Compressive Loading Conditions.MATERIALS,13(24),5646.
MLA	Li LT,et al."Micro-Mechanisms of Shear Deformation Localization of Ti6Al4V Alloy under Shear-Compressive Loading Conditions".MATERIALS 13.24(2020):5646.

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