Effect of Mo Content on Creep Behavior of a Near-alpha Titanium Alloy Ti-5.8Al-4.0 Sn- 3. 5Zr-0.4Mo-0.4Si -0.4Nb-0. 4Ta-0.05C
The effect of Mo content on creep behavior of Ti-5. 8A1-4. 0Sn-3. 5Zr-0. 4Mo-0. 4Si -0. 4Nb-0. 4Ta-0. 05C alloy was investigated Creep experiments were performed in tension at 600℃/160 MPa. The results revealed that increase of Mo content may cause increase of both the steady-state creep rate and residual strain. It was found that,under the present test condition,creep is controlled by the interface sliding and elemental diffusion along α platelet boundary. The decreased creep resistance with increasing Mo content is attributed to the increased density of the α/β lath interfaces and volume fraction of the α phase, which leads to less precipitation and shape change of silicide and results in weakened pinning of α/β lath interfaces from the silicide.
Near alpha titanium alloy creep behavior Mo content silicide
S. X. Zhu J. R. Liu Q. J. Wang
Institute of Metal Research , Chinese Academy of Sciences, Shenyang 110016, China
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
1317-1320
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）