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)
Source PublicationMATERIALS
2020-12-01
Volume13Issue:24Pages:5646
AbstractTitanium 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.
Keywordtitanium alloy deformation localization microcosmic mechanism shear-compression specimen dynamic combined loading
DOI10.3390/ma13245646
Indexed BySCI ; EI
Language英语
WOS IDWOS:000602851800001
WOS KeywordPURE TI ; MICROSTRUCTURAL EVOLUTION ; MECHANICAL-PROPERTIES ; INSTABILITY ; TI-6AL-4V ; BEHAVIOR
Funding OrganizationNational Nature Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11572337, 11772346]
Classification二类
Ranking3
ContributorWang, ZH
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/85787
Collection流固耦合系统力学重点实验室
Affiliation1.{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
Recommended Citation
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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