Abstract
A combination of different deformation modes, namely, dislocation slip and {3. 3. 2}〈1. 1. 3〉 twinning was found to be effective for achieving high yield strength and large uniform elongation in the β type Ti-15Mo-5Zr and Ti-10Mo-2Fe alloys in the as-solution treated condition, where the Mo equivalency was designed to be between 15.3 and 18.7. mass%. The high yield strength was caused mainly by the slip, and the large uniform elongation was caused by the twinning through significant work hardening. The change in the work hardening rate with strain correlated well with the formation of mechanical twins. The deformation was heterogeneous among the grains and the twins were not seen in some of the grains even after the tensile fracture. This heterogeneity was discussed based on the effects of the grain orientation and the segregation of alloying elements.
| Original language | English |
|---|---|
| Pages (from-to) | 4569-4578 |
| Number of pages | 10 |
| Journal | Materials Science and Engineering A |
| Volume | 528 |
| Issue number | 13-14 |
| DOIs | |
| Publication status | Published - May 25 2011 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Enhancement of uniform elongation in high strength Ti-Mo based alloys by combination of deformation modes. / Min, X. H.; Tsuzaki, Kaneaki; Emura, S.; Tsuchiya, K.
In: Materials Science and Engineering A, Vol. 528, No. 13-14, 25.05.2011, p. 4569-4578.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Enhancement of uniform elongation in high strength Ti-Mo based alloys by combination of deformation modes
AU - Min, X. H.
AU - Tsuzaki, Kaneaki
AU - Emura, S.
AU - Tsuchiya, K.
PY - 2011/5/25
Y1 - 2011/5/25
N2 - A combination of different deformation modes, namely, dislocation slip and {3. 3. 2}〈1. 1. 3〉 twinning was found to be effective for achieving high yield strength and large uniform elongation in the β type Ti-15Mo-5Zr and Ti-10Mo-2Fe alloys in the as-solution treated condition, where the Mo equivalency was designed to be between 15.3 and 18.7. mass%. The high yield strength was caused mainly by the slip, and the large uniform elongation was caused by the twinning through significant work hardening. The change in the work hardening rate with strain correlated well with the formation of mechanical twins. The deformation was heterogeneous among the grains and the twins were not seen in some of the grains even after the tensile fracture. This heterogeneity was discussed based on the effects of the grain orientation and the segregation of alloying elements.
AB - A combination of different deformation modes, namely, dislocation slip and {3. 3. 2}〈1. 1. 3〉 twinning was found to be effective for achieving high yield strength and large uniform elongation in the β type Ti-15Mo-5Zr and Ti-10Mo-2Fe alloys in the as-solution treated condition, where the Mo equivalency was designed to be between 15.3 and 18.7. mass%. The high yield strength was caused mainly by the slip, and the large uniform elongation was caused by the twinning through significant work hardening. The change in the work hardening rate with strain correlated well with the formation of mechanical twins. The deformation was heterogeneous among the grains and the twins were not seen in some of the grains even after the tensile fracture. This heterogeneity was discussed based on the effects of the grain orientation and the segregation of alloying elements.
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U2 - 10.1016/j.msea.2011.02.071
DO - 10.1016/j.msea.2011.02.071
M3 - Article
VL - 528
SP - 4569
EP - 4578
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
SN - 0921-5093
IS - 13-14
ER -