Abstract
Ti-5Al-5Mo-5V-1Fe-1Cr Ti alloy (TC18) was fabricated via a consumable vacuum arc-remelting furnace, and then subjected to thermo-mechanical processing and heat treatment. The microstructural characteristics and mechanical properties of the heat-treated alloy were investigated. Results show that primary α phase exhibits spherical, near equiaxed, plate- and rod-shaped morphologies after heat treatment. This is associated with boundary segregation of α grain. The alloy presents a good combination of strength and plasticity during tensile test. However, the value of σy/σb of the alloy reaches 0.95. It is suggested that the grain boundaries absorb dislocations during tensile test; therefore, the dislocation strengthening increases very slowly. This is the primary reason for the high value of σy/σb.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1138-1141 |
| Number of pages | 4 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 45 |
| Issue number | 5 |
| State | Published - May 1 2016 |
| Externally published | Yes |
Bibliographical note
Generated from Scopus record by KAUST IRTS on 2023-09-21ASJC Scopus subject areas
- Materials Chemistry
- Metals and Alloys
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering