Deformation behavior and microstructure of NiAl-Cr(Mo) alloy by powder metallurgical technique

作     者：高强 郭建亭 刘午 淮凯文 张俊善 

作者机构：Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Department of Materials Engineering Dalian University of Technology Dailian 116024 China Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China School of Mechanics and Automobile Shenyang Institute of Aeronautical Engineering Shenyang 110034 China Department of Materials Engineering Dalian University of Technology Dailian 116024 China 

出 版 物：《中国有色金属学会会刊：英文版》 (Transactions of Nonferrous Metals Society of China)

年 卷 期：2005年第15卷第S3期

页      面：38-42页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 0702[理学-物理学] 

基　　金：Project(59895152)supportedbytheNationalNaturalScienceFoundationofChina 

主　　题：hot pressing NiAl-28Cr-6Mo microstructural refinement mechanical properties 

摘      要：NiAl-28Cr-6Mo alloy was prepared by hot-pressing (HP) the atomized prealloyed powders. The results show that the powders have uniformly refined size and small interlamellar spacing; the porosity is the main defect in the powder metallurgy (PM) alloy, the Cr(Mo) phase in the alloy is easy to segregate to form network in the interior of the original powders and blocks at the boundaries of the original powders during the HP processing; the PM alloy exhibits a high-level combination of fracture toughness and tensile strength, whereas the creep resistance of the PM alloy is degraded.