Thermoplastic shear localisation in titanium alloys during dynamic deformation
Xu, YB; Liu, L; Yu, JQ; Shen, LT; Bai, YL
Corresponding AuthorXu, YB()
AbstractCylindrical specimens (4 mm diameter and 4 mm height) of titanium alloy bar mere given various heat treatments to provide a wide range of microstructures and mechanical parameters. These specimens were then subjected to high plastic strain at a large strain rate (10(3) s(-1)) during dynamic compression by a split Hopkinson bar at ambient temperature. The microstructures of the localised shear bands were examined by optical and transmission electron microscopy. The results show that there are two types of localised shear bands: deformed and white shear bands. A detailed observation reveals that there is no difference in the nature of the deformed and white shear bands, but they occur at different stages of localised deformation. It is found that there is a burst of strain, corresponding to a critical strain rate at which the white shear band occurs and no phase transformation occurs in the shear bands. MST/4420.
Indexed BySCI
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000087866700004
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Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorXu, YB
Affiliation1.Chinese Acad Sci, Met Res Inst, State Key Lab Fatigue & Fracture Mat, Shenyang 110015, Peoples R China
2.Chinese Acad Sci, Inst Mech, Beijing 110080, Peoples R China
Recommended Citation
GB/T 7714
Xu, YB,Liu, L,Yu, JQ,et al. Thermoplastic shear localisation in titanium alloys during dynamic deformation[J]. MATERIALS SCIENCE AND TECHNOLOGY,2000,16(6):609-611.
APA Xu, YB,Liu, L,Yu, JQ,Shen, LT,&Bai, YL.(2000).Thermoplastic shear localisation in titanium alloys during dynamic deformation.MATERIALS SCIENCE AND TECHNOLOGY,16(6),609-611.
MLA Xu, YB,et al."Thermoplastic shear localisation in titanium alloys during dynamic deformation".MATERIALS SCIENCE AND TECHNOLOGY 16.6(2000):609-611.
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