Abstract
Ti-30Nb-10Ta-XZr alloys were fabricated based on Ti-30Nb-10Ta-5Zr alloy, which was the composition simplified that of Ti-29Nb-13Ta-4.6Zr alloy for biomedical applications. The tensile deformation mechanisms of Ti-30Nb-10Ta-XZr alloys (X: 0, 3, 5, 7 and 10%) were then investigated. The plastic deformation mechanisms of Ti-30Nb-10Ta-XZr alloys during tensile loading change with changing Zr content. Microstructure of Ti-30Nb-10Ta alloy without Zr after tensile test shows a stress-induced transformation of β phase. In Ti-30Nb-10Ta alloy, the plastic deformation mechanism is mainly dominated by the stress-induced transformation of β phase. Microstructure of Ti-30Nb-10Ta-3Zr alloy after tensile test shows a stress-induced transformation of β phase and many dislocations in β phase. In Ti-30Nb-10Ta-3Zr alloy, the plastic deformation mechanism is mainly dominated by the stress-induced transformation of β phase and slip. Microstructures of Ti-30Nb-10Ta-XZr alloys (X: 5, 7 or 10%) after tensile test show many dislocations in β phase. In these alloys, the plastic deformation mechanisms are mainly dominated by slip. The elastic deformations of Ti-30Nb-10Ta-XZr alloys (X: 3, 5 or 7%) do not depend on Hooke's law. The maximum recovery strains of these alloys increase with increasing the total strain.
| Original language | English |
|---|---|
| Pages (from-to) | 89-95 |
| Number of pages | 7 |
| Journal | Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals |
| Volume | 70 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2006 Jan |
Keywords
- Biomaterial
- Mechanical properties
- Microstructure
- Powder metallurgy
- Stress-induced transformation
- Titanium alloy
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry