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黄 斌,任维佳,张艳敏,陈爽,杨延清,罗贤.魏氏组织TC17钛合金绝热剪切带(ASB)的组织与织构[J].稀有金属材料与工程(英文),2018,47(9):2705~2710.[Bin Huang,Weijia Ren,Yanmin Zhang,Shuang Chen,Yanqing Yang and Xian Luo.Microstructure and Texture of Adiabatic Shear Band (ASB) in TC17 Titanium Alloy with widmanstatten microstructure[J].Rare Metal Materials and Engineering,2018,47(9):2705~2710.]
Microstructure and Texture of Adiabatic Shear Band (ASB) in TC17 Titanium Alloy with widmanstatten microstructure
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Received:January 21, 2018  Revised:March 22, 2018
DOI:
Key words: Adiabatic Shear Bend (ASB)  TC17 titanium alloy  widmanstatten microstructure  Electron Back Scattered Diffraction (EBSD)
Foundation item:国家自然科学基金资助(项目号51201135)、陕西省自然科学基金(2017JM5085)
Author NameAffiliation
Bin Huang,Weijia Ren,Yanmin Zhang,Shuang Chen,Yanqing Yang and Xian Luo  
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Abstract:
      Hot compression tests were carried out on TC17 titanium alloy by using thermal simulation testing machines, and the influence of different deformation parameters on the morphology and structure of TC17 titanium alloy with widmanstatten microstructure was characterized by Electron Back Scattered Diffraction (EBSD) techniques. The results show that adiabatic shear bend (ASB) occurs in the TC17 alloy with widmanstatten microstructure while the hot compression deformation temperature is over 700℃, and the central region of ASB is mainly composed of equiaxed β-phase grains formed by dynamic re-crystallization and a small amount of α-phase. The residual α phase and also the β-phase grain size increase with increasing of the hot compression temperature. Different deformation parameters have little effect on the orientation distribution of β-phase in the central region of ASB, and Goss texture mainly forms in β-phase. Furthermore, the research shows that the TC17 titanium alloy with widmanstatten microstructure has good adiabatic shear sensitivity, and it increases gradually with the increase of the hot compression deformation temperature.