Microstructure of the Ductile Phase in Intermetallic Compound Ni_(50)Al_(20)Fe_(30)

作     者：Lianlong HE Shuhe WANG Jianting GUO and Hengqiang YE (Lab. of Atomic Imaging of Solids, Institute of Metal Research, Academia Sinica, Shenyang, 110015, China)(To whom correspondence should be addressed) 

作者机构：Lab of Atomic Imaging of Solids Shenyang 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5期

页      面：341-346页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 070301[理学-无机化学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

主　　题：Fe Figure Microstructure of the Ductile Phase in Intermetallic Compound Ni Al 

摘      要：The microstructure of the single hot extruded and annealed Ni50Al20Fe30Y0.003 intermetallic compound alloys has been examined by means of high resolution electron microscopy (HREM). In these extruded and annealed alloys. the ductile phase is of a mixture of the disordered fcc γ matrix and or dered γ precipitates. This fact well interprets the reason why the degree of annealing treatment can influence the strength and ductility of these alloys. The HREM observation revealed directly that there was some strain concentration at γ -γ interfaces, due to the presence of more iron atoms in these two phases. The fixed orientation relationship between the γ phase and γ precipitates was identified to be {001}γ||{00 }γ and γ|| γ