摘要
用自行研制的高温磨粒磨损试验机对含碳量为0.82%～2.94%的Fe20%Cr合金进行了800℃下的高温磨粒磨损试验。通过对磨损面的形貌分析并结合磨损面亚表层的组织变化,讨论了合金中共晶碳化物在高温磨损时的作用。结论指出:在高温磨损过程中共晶碳化物可以起到提高材料抗磨性的作用,但在很大程度上还取决于基体组织对它的支撑。如果两者能够很好地配合,则可更进一步提高在高温磨损工况下材料的抗磨粒磨损性能。
Abrasive wear test of Fe-20%Cr alloy with carbon content ranging from 0. 82%-2. 94% was
conducted at 800℃ in a self-made high temperature wear tester. Through the analysis of morphology
of worn surface and structural changes in the subsurface, the effect of eutectic carbide was discussed.
The main conclusion was: in abrasive wear at elevated temperatures, although the carbide was useful
for increasing the wear resistance, the wear resistance depended on the matrix too, because the matrix
provided support for the carbide. If they cooperated with each other, the wear resistance at elevated
temperatures would be further increased.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1992年第4期47-51,70,共6页
Journal of Xi'an Jiaotong University
关键词
碳化物
耐磨性
耐热合金
铬合金
carbide
wear resistance
heat resistant alloys
