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Microstructure and mechanical properties of iron-containing titanium metal-metal composites
- Source :
- International Journal of Refractory Metals and Hard Materials. 90:105225
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Titanium-based metal-metal composites show promises in many applications. In this work, iron-containing titanium-based composites were fabricated by using powder metallurgy method and rotary swaging process. Titanium-based composites with steel addition were sintered at temperature below Ti Fe eutectic temperature. Increase of the steel addition to 23% resulted in formation of Ti Fe intermetallic and density decrease in the composites. Further, the as-sintered composites present relatively good workability so hot rotary swaging of the as-sintered composites can be conducted. Steel particles were diffused into the Ti matrix and the composite transformed to a discontinuous β-Ti fiber-reinforced structure. As a result, mechanical properties (in axial direction) of the swaged composites were significantly improved. The tensile strength and elongation reached 1360 MPa and 9.3%, respectively.
Details
- ISSN :
- 02634368
- Volume :
- 90
- Database :
- OpenAIRE
- Journal :
- International Journal of Refractory Metals and Hard Materials
- Accession number :
- edsair.doi...........46bb77eb7c91c887343bea6b54dff704