变质系列锰钢耐磨性的研究

STUDY ON WEAR RESISTANCE OF INOCULATED MANGANESE STEELS

研究了变质系列锰钢的耐磨性与磨面硬度、磨面组织、主要磨损机制及磨损冲击功之间的关系。结果表明，不同成分变质锰钢的耐磨性与磨损冲击功之间呈抛物线关系，耐磨性峰值的位置随锰含量的降低而向较低磨损冲击功方向移动；与耐磨性峰值对应存在着一个“最佳磨面硬度范围”和“适配冲击功范围”，在此范围内材料的耐磨性最高，主要磨损机制为显微切削＋浅小凿坑＋轻微剥落；钢中形成适量的形变诱发马氏体有利于耐磨性的提高。

The relation between wear resistance and worn surface hardness, worn surface structure,main wear mechanism as well as wear impact energy has been studied systematically in this paper The results show that the relation between the wear resistance and wear impact energy of inoculated manganese is of parabolic characterThe position of the peak value of wear resistance shifts to lower wear impact energy with reduction in manganese content“The range of optimum worn surface hardness”and“the range of proper impact energy”are corresponded to the peak value of wear resistance In these ranges, the wear resistance of the steels is the highest,and the main wear mechanism is of microcutting,shellow impact pitting and slight strippingA suitable amount of deformation induced martensite is favorable to the improvement of wear resistance