Fe-28Mn-6Si-5Cr磨损性能影响因素分析
Analysis on Influencing Factors of Wear Properties of Fe-28Mn-6Si-5Cr
张 炎, 王再友, 陈 超
点击：5220次 下载：0次
作者单位：南京工程学院 材料工程学院, 江苏 南京 211167
中文关键字：Fe-28Mn-6Si-5Cr合金； 合金元素； 耐磨性； 应力诱发马氏体相变
英文关键字：Fe-28Mn-6Si-5Cr alloy; alloy element; wear resistance; stress-induced martensitic transformation
中文摘要：研究了添加不同含量Nb、Ti、Ce的Fe-28Mn-6Si-5Cr合金在油润滑条件下的摩擦磨损性能。结果表明，Fe-28Mn-6Si-5Cr合金的磨损质量损失明显低于45钢，且受载荷和转速的影响较小，当载荷为300 N时为最小。合金的磨损质量损失随转速的提高而增加。在相同的摩擦条件下，转速为50 r/min时，添加Nb和Ce、硬度较低的合金耐磨性最好，而转速为75 r/min时，添加0.42%Ti、硬度最高的合金表现出最佳的耐磨性。磨损表面形貌分析表明，合金的磨损表面呈平行于滑动方向的浅平润滑犁削沟，主要为切削磨损。
英文摘要：The wear properties of Fe-28Mn-6Si-5Cr with different content Nb, Ti, Ce were studied in oil lubricant. The results show the wear mass loss of Fe-28Mn-6Si-5Cr is obviously less than that of 45 steel, and the load and speed have little influence to the mass loss. The mass loss is the smallest when the load is 300 N for every experimental alloy. The wear mass loss of the alloy increases with increase of sliding speed. When the speed is 50 r/min, the alloy with Nb and Ce has the best wear resistance, but the speed is 75 r/min, the alloy with 0.42%Ti and highest hardness exhibits the best wear resistance. The analysis of surface morphology shows that there is light cutting plough, and the mechanism is cutting wear.