| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1576508 | Materials Science and Engineering: A | 2013 | 8 Pages |
Abstract
In this paper, the ageing response and the mechanical properties of Ti-5553 (Ti-5Al-5V-5Mo-3Cr) and Ti-5553s (Ti-5Al-5V-5Mo-3Cr-0.4Si) alloys are comparatively investigated. During ageing at 650 °C, the hardness of the alloys first increases in 30 min and remains constant from 1 h to 8 h, and then decreases with further increase the ageing time to 29 h. This variation is related to the chemical composition and the volume fraction of α phase. The mechanical properties of the 5 h aged Ti-5553 and Ti-5553s alloys are investigated, and the result shows that the ultimate tensile strength of the Ti-5553s alloy is higher than that of Ti-5553 alloy while the ductility of the Ti-5553s alloy slightly decreases. The tensile fracture of the Ti-5553s alloy shows a mixed model of intergranular fracture and cleavage fracture.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Dongyang Qin, Yafeng Lu, Qian Liu, Lian Zhou,