Microstructure and Mechanical Properties of CrCoNiMn Multivariate Solid Solution Reinforced Fe-based Alloys
Author of the article:ZHANG Tao;ZHAO Rongda;FANG Zheng;WU Fufa
Author's Workplace：School of Materials Science and Engineering, Liaoning University of Technology, Jinzhou 121000, China
Key Words：Fe100-x(CoCrNiMn)x alloy microstructure mechanical properties
Abstract：
The microstructure, phase structure, fracture morphology and mechanical properties of Fe100-x (CoCrNiMn)x alloys were investigated. The results show that with the decrease of CoCrNiMn content, microstructure are dendrites and interdendritic, but the distribution of lath structures on dendrites is increased. The metallographic structure changes from dendritic to dendritic matrix with lath structure;the phase structure of the alloys is still body-centered cubic (BCC) phase structure. In addition, the yield strength and ultimate tensile strength of the alloys are decreased firstly and then increased. A large number of small and deep dimples are observed in the fracture of the samples with good elongation.
