摘要
The forming process of Ti-22Al-25Nb alloy was studied and the process-microstructure-property relationships were investigated. The experimental results indicate that increasing of deformation times of Ti-22Al-25Nb alloy bars can improve the uniformity of microstructure and refine the grain size, and to enhance ductility of bars at room temperature. The dual-microstructure and lamellar microstructure can be obtained via rolled in α2+B2+O region and α2+B2 region respectively. The tensile strength of the alloy after forming process is higher than 1100 MPa and the elongation is higher than 6.5% for both two microstructure. The dual-microstructure of the alloy has higher strength, but poor in ductility compared with lamellar microstructure. Based on the experimental results, the Ti-22Al-25Nb alloy produced for application, the deformation times of bars should be much than 8 and the ring should be rolled in α2+B2 region.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 49-52 |
| 页数 | 4 |
| 期刊 | Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment |
| 卷 | 35 |
| 期 | 10 |
| 出版状态 | 已出版 - 25 10月 2014 |