Grain Refiner for TiAl Intermetallic Compounds

作     者：Yuehui HE Yexiang LIU Baiyun HUANG Xuanhui QU and Changming LEI (Powder Metallurgy Research Institute, Central South University of Technology, Changsha, 410083, China) 

作者机构：Central South Univ of Technology Changsha China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：1994年第10卷第3期

页      面：205-208页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

主　　题：TiAl AIME 

摘      要：The effect of BN addition on the grain size and rnechanical properties of Ti-34.1 wt-%Al alloy was investigated. It has been found that BN is an effective grain refiner for TiAl base alloys, The addition of a small arnount of BN to TiAl can change the coarse columnar grains of as-cast rnicrostructure into the fine equiaxed grains. It has been also determined that Ti-34.1 wt-%Al-1.0 wt-%BN alloy has better mechanical properties and microstructure