A Study of Mechanical Properties of the Iron-base Sintered Steel Adding Fine Cr-Fe Powder

作     者：Chen Hua 1 , Liu Yongbing 2 , Li Yueying 2 , Cao Zhanyi 2 , Chai Zhilong 3 1 Key Laboratory of Advanced Structural Materials, Ministry of Education, Changchun University of Technology, Changchun 130012, China 2 Key Laboratory of Automobile Materials, Ministry of Education, Jilin University, Changchun 130022,China 3 Research Institute of First Automobile Factory of China, Changchun 130011, China 

作者机构：Changchun Univ Technol Sch Mat Sci & Engn Key Lab Adv Struct Mat Minist Educ Changchun 130012 Peoples R China Jilin Univ Key Lab Automobile Mat Minist Educ Changchun 130022 Peoples R China Res Inst First Automobile Factory China Changchun 130011 Peoples R China 

出 版 物：《稀有金属材料与工程》 (Rare Metal Materials and Engineering)

年 卷 期：2011年第40卷第S3期

页      面：5-8页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Jilin Educational Committee (2009115) 

主　　题：sintered steel fine Cr-Fe powder mechanical properties 

摘      要：This paper reports an investigation of the mechanical properties and the fracture mechanism of iron-based sintered alloy containing fine Cr-Fe powder particles 300 nm in size and in contents raging from 0.2-1.5 wt%. The iron-base alloy were sintered at 1120 ℃ for 40min. The results of the study revealed improvement in mechanical properties such as tensile strength, elongation and hardness of the sintered alloy. The fracture behaviors of the alloy were influenced significantly by the presence of Cr-Fe powder particles. The mechanical properties increased with increasing Cr content. Micrographs of fracture appeared dimple and quasi-cleavage.