Effect of Y Addition on Microstructure and Constituent Phases of Al-Ti-C Master Alloy
来源期刊：JOURNAL OF RARE EARTHS2007年增刊第1期
论文作者：Zhang Jinshan Liang Wei Xu Chunxiang Lv Zhengling Lu Binfeng
Key words：Al-Ti-C master alloy; microstructure; constituent phases; yttrium;
Abstract: Al-Ti-C master alloy was prepared by SHS (Self-propagating High temperature Synthesis)-melting technique. Effect of yttrium addition level on the microstructures of the master alloy was studied by XRD, SEM and EDS. The experimental results show that the addition of 1.0%Y is beneficial to the formation of TiC particles; Al-Ti-C-1.0Y consists of rod-like and blocky TiAl3, TiC, Al3Y and α-Al matrix. Y is found around TiC particles in Al-Ti-C-0.5Y master alloy while blocky (AlTiY) phase appears in Al-Ti-C-1.0Y master alloy. Al3Y with dendritic morphology and small blocky Al2Y except for TiC are found in Al-Ti-C-2-0Y master alloy.
Zhang Jinshan1，Liang Wei1，Xu Chunxiang1，Lv Zhengling1，Lu Binfeng1
(1.School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China)
Abstract:Al-Ti-C master alloy was prepared by SHS (Self-propagating High temperature Synthesis)-melting technique. Effect of yttrium addition level on the microstructures of the master alloy was studied by XRD, SEM and EDS. The experimental results show that the addition of 1.0%Y is beneficial to the formation of TiC particles; Al-Ti-C-1.0Y consists of rod-like and blocky TiAl3, TiC, Al3Y and α-Al matrix. Y is found around TiC particles in Al-Ti-C-0.5Y master alloy while blocky (AlTiY) phase appears in Al-Ti-C-1.0Y master alloy. Al3Y with dendritic morphology and small blocky Al2Y except for TiC are found in Al-Ti-C-2-0Y master alloy.
Key words:Al-Ti-C master alloy; microstructure; constituent phases; yttrium;
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