Abstract
Metastable β titanium alloy Ti-10V-2Fe-3Al is known to exhibit a shape memory effect due to a stress-induced α″ martensitic transformation at room temperature. In the present study, nitrogen (N) was added to this alloy to strengthen the β matrix. The effect on the deformation behavior of β phase was studied. Thermally induced martensite is formed in the N-free alloy by quenching after β solutionizing but it is not observed in the alloys containing nitrogen of more than 0.1 mass%. Superelasticity due to stress-induced formation of α″ martensite was observed in the 0.1 and 0.2N alloys. N addition is moreover effective in increasing a true elastic strain up to 1% by strengthening of the β matrix.
| Original language | English |
|---|---|
| Pages (from-to) | 825-829 |
| Number of pages | 5 |
| Journal | Materials Science and Engineering A |
| Volume | 438-440 |
| Issue number | SPEC. ISS. |
| DOIs | |
| Publication status | Published - 2006 Nov 25 |
Keywords
- Nitrogen
- Shape memory effect
- Stress-induced martensitic transformation
- Superelasticity
- β Titanium alloy
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering