Effect of Y Addition on Microstructure and Constituent Phases of Al-Ti-C Master Alloy  

作　　者：许春香 卢斌峰 吕正玲 张金山 梁伟 

机构地区：[1]School of Materials Science and Engineering, Taiyuan University of Technology

出　　处：《Journal of Rare Earths》2007年第S2期206-210,共5页稀土学报（英文版）

基　　金：Project supported by Natural Science Foundation of Shanxi Province (2007011067)

摘　　要：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.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.

关 键 词：Al-Ti-C master alloy MICROSTRUCTURE constituent phases YTTRIUM 

分 类 号：TG146.21[一般工业技术—材料科学与工程]