Abstract
Hot compression tests were carried out on TC17 titanium alloy with Widmanstatten microstructure by thermal simulation testing machines, and the influence of different deformation parameters on the morphology and structure of the TC17 titanium alloy was characterized by electron back scattered diffraction (EBSD) techniques. The results show that adiabatic shear band (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. More residual α phase appears and the β-phase grain size increases 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 TC17 titanium alloy with Widmanstatten microstructure has good adiabatic shear sensitivity, and it increases gradually with the increase of hot compression deformation temperature.
| Translated title of the contribution | Microstructure and Texture of Adiabatic Shear Band (ASB) in TC17 Titanium Alloy with Widmanstatten Microstructure |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 2705-2710 |
| Number of pages | 6 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 47 |
| Issue number | 9 |
| State | Published - 1 Sep 2018 |
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