Abstract
In order to improve microstructure and composition segregation of the casting titanium alloys, TC4 alloys was fabricated by powder metallurgy method based on mixing element method and cold isostatic pressing. The effects of sintering temperature on performance and microstructure of TC4 alloys were investigated by OM, SEM and tensile testing. Results show that the microstructure of sintered TC4 alloys can be refined obviously and it is mainly composed of α and β phase with the uniform distribution of element. With increasing in sintering temperature, tensile1 strength of the sintered TC4 alloy can be improved greatly. With sintered temperature more than 1 260℃, increase of mechanical properties of the alloy can be ignored with increasing in sintering temperature. Elongation of the alloy is increased firstly and then declined with sintering temperature increase. The maximum value of tensile strength and elongation can reach up to 1 018 MPa and 8.8%, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 362-366 |
| Number of pages | 5 |
| Journal | Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys |
| Volume | 37 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2017 |
Keywords
- Microstructure
- Performance
- Sintering temperature
- TC4 alloys