- Volume 32 Issue 6
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Analysis of Sliding Wear Behavior of Mild Steel According to Hardness of Dissimilar Mating Materials
이종 상대재 경도에 따른 철강재료의 미끄럼 마모 특성 해석
- Lee, Han-Young (Keimyung University, Dept. of Advanced Materials Engineering)
- 이한영 (계명대학교 신소재공학과)
- Received : 2016.09.11
- Accepted : 2016.11.05
- Published : 2016.12.31
This study examines the wear behavior of mild steel pins mated against alloyed tool steel discs in a pin-on-disc type sliding test machine and provides specific clarification regarding the effects of disc hardness on the wear behavior of a mating mild steel pin. The analysis confirms these effects through the observation of differences in the wear rates of the mild steel pins at low sliding speed ranges. These differences occur even though the hardness of the mating disc does not affect the wear characteristic curve patterns for the sliding speeds, regardless of the wear regime. In the running-in wear regime, increasing the hardness of the mating disc results in a decrease in the wear rates of the mild steel pins at low sliding speed ranges. However, in the steady-state wear region, the wear rate of a pin mated against the 42DISC is greater than the wear rate of a pin mated against the 30DISC, which has a lower hardness value. This means that the tribochemical reactivity of the mating disc, which is based on hardness value, influences the wear behavior of mild steel at low sliding speed ranges. In particular, oxides with higher oxygen contents, such as
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