Structure of Second Phase Particles in As-cast Ti-5Al-4Sn-2Zr-1Mo-0.25Si-1Nd Alloy |
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| Authors: | Geping LI Qingchun LI Dong LI Yuyin LIU Shaoxuan GUAN Qingjiang WANG Dehai PING Zhuangqi HU |
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| Affiliation: | Geping LI and Qingchun LI (Harbin Institute of Technology,Harbin,China)Dong LI,Yuyin LIU Shaoxuan GUAN Qingjiang WANG,Dehai PING and Zhuangqi HU (Institute of Metal Research,Chinese Academy of Sciences,Shenyang,China) |
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| Abstract: | The microstructure of the Ti-5Al-4Sn-2Zr-1Mo-0.25Si-1Nd (Ti-55) alloy containing second phase particles was studied. The second phase particles are 1~15 μm in size and most of them are distributed at the grain boundaries in the form of ellipsoid with a few short needle-like and blocky phases. It consists of either dark or bright amorphous "matrix", and some small spots dispersed within the "matrix", which match SnO (orthorhombic, a=0.500 nm, b=0.572 nm, c=1.12 nin). |
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