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摘要
Sliding wear tests were performed for H13 steel and a cast steel under atmospheric conditions of 25, 200, and 400A degrees C. XRD results identify that oxidative wear prevailed for the steels during sliding at 200-400A degrees C. However, the oxidative wear at 200A degrees C presented entirely different wear behaviors from the one at 400A degrees C. With an increase of load, the oxidative wear at 200A degrees C exhibited slowly increased and lower wear rates, despite relatively less tribo-oxides. On the contrary, although there were more tribo-oxides, the oxidative wear at 400A degrees C presented rapidly increased and higher wear rates. The former oxidative wear could be classified into mild wear; the latter one fell beyond mild wear. The two types of oxidative wear universally existed; their discrepancies were mainly attributed not to the tribo-oxides, but to the extent of softening and deformation of substrate. Hence, we suggested that the two types of oxidative wear should be distinguished in the coming research, and were termed oxidative mild wear and oxidative wear, respectively.
- 出版日期2011-4
- 单位江苏大学
