| Autor: |
Chao Cheng, Xin Wang, Qingjiang Wang, Hong En Li, Zhiyong Chen, Ye Feng |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Materials Science and Engineering: A. 826:141971 |
| ISSN: |
0921-5093 |
| Popis: |
The aim of this paper was to study effect of annealing temperature on microstructure, texture and tensile properties of a high temperature titanium alloy sheet. The as-received sheet exhibited an equiaxed structure consisting of primary α phase and few retained β phase. The α phase texture showed a typical B-type texture with inclined to normal direction. The intracrystalline substructure played an important role on tensile strength when the annealing temperature below 900 °C. Duplex microstructure with B + R-type texture was obtained when annealing temperature increased to α＋β region (900–990 °C). The intensity of B-type texture and R-type texture was found to be determined by the volume fraction of primary α phase and transformed β phase. Significant increase of tensile strength after α＋β region annealing was thought to result from the secondary α-β interfaces strengthening, and the formation of R-type texture lead to the anisotropy of tensile strength. Widmanstatten structure was obtained when the sheet suffered a β phase region annealing (1000–1020 °C) and the tensile strength decreased instantly. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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