Effect of Y on Microstructure and Mechanical Properties of a Ti Alloy |
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| Journal | Materials Science Forum (Volumes 654 - 656) |
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| Volume | PRICM7 |
| Edited by | Jian-Feng Nie and Allan Morton |
| Pages | 460-463 |
| DOI | 10.4028/www.scientific.net/MSF.654-656.460 |
| Citation | Zhi Guang Liu et al., 2010, Materials Science Forum, 654-656, 460 |
| Online since | June, 2010 |
| Authors | Zhi Guang Liu, Chang Jiang Zhang, Li Hua Chai, Yu Yong Chen, Kee Do Woo |
| Keywords | High Temperature Titanium Alloy, Mechanical Properties, Microstructure, Yttrium |
| Abstract | A near-α high temperature titanium alloy, Ti-6Al-2.5Sn-4Zr-0.7Mo-0.30Si, was produced with various Y contents from 0 to 0.7wt% by arc-melting technique to study the influence of Y on its microstructure and mechanical properties. It was found that small amount of Y obviously refines the grain size of Ti-6Al-2.5Sn-4Zr-0.7Mo-0.30Si alloy. SEM and TEM observations revealed that Y-containing phase precipitated at the β grain boundary in the form of Y2O3 particles. Hardness and compression tests performed at room temperature revealed the strengthening effect of Y. |
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