Effects of B, Zr and Si on Microdefects in FeAl Alloys  

作　　者：邓文 熊良钺 郭建亭 王淑荷 龙期威 

机构地区：[1]International Centre for Materials Physics', Institute of Metal Research, Academia Sinica,Shenyang 110015, PRC

出　　处：《Chinese Science Bulletin》1994年第12期993-996,共4页

基　　金：Project supported by the National Natural Science Foundation of China.

摘　　要：The long-range ordered intermetallic compounds FeAl alloys with B2 crystalstructure are characterized by superior high-temperature strength, excellent oxidation re-sistance, low density and low cost, so that they are available for the futurehigh-emperature structure materials. But the room temperature brittleness of FeAl al-loys has been the major obstacle for its engineering applications. The binary FeAl withmore than 40 at.% Al content showed mainly intergranular fracture. The cohesions

关 键 词：FEAL alloys ALLOYING elements MICRODEFECTS density of VALENCE electrons. 

分 类 号：TG131[一般工业技术—材料科学与工程]