Mechanical Properties and Abrasive Wear Behavior of a New Low Alloyed MnSiCrB Cast Steel
The microstructure, mechanical properties and abrasive wear behavior of a new low alloyed MnSiCrB cast steel by Alr-cooling and tempering were characterized. The results show that the microstructure consists of granular bAlnite and lower bAlnite/martensite multiphase. The hardness, tensile strength, elongation and impact toughness reach 51 -52HRC, 2000 -2050MPa,4％ -6％ and 110-160J/cm2 respectively. The wear-resistance is 30％ more than that of Hadfield cast steel in the abrasive wear condition. Therefore, the Alr-cooled MnSiCrB cast steel with excellent combination of strength, ductility, impact toughness and wear-resistance is a potential high-performance, low-cost and environment - friendly cast steel due to the simple alloying scheme and heat treatment. In addition, the mechanisms of strengthening, toughening and abrasive wear were also discussed in this paper.
low alloyed cast steel Alr-cooling strength toughness abrasive wear
Luo Kaishuang Bai Bingzhe
Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China Key Laboratory for Advanced Materials of Ministry of Education, Beijing 100084, China
国际会议
69th World Foundry Congress(第69届世界铸造会议 WFC 2010)
杭州
英文
436-440
2010-10-16（万方平台首次上网日期，不代表论文的发表时间）