Wear and Friction Characteristics of a Selected Stainless Steel |
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Authors: | M. X. Wei S. Q. Wang L. Wang X. H. Cui |
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Affiliation: | School of Materials Science and Engineering , Jiangsu University , Zhenjiang , 212013 , China |
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Abstract: | Dry sliding wear tests were performed for 3Cr13 steel with various tempered states at 25–400°C; wear and friction characteristics as well as the wear mechanism were explored. With an increase in test temperature, the wear rate decreased accompanied by an increase in tribo-oxides. The fluctuation of friction coefficient was slight at 25–200°C but became violent at 400°C. At 25–200°C, adhesive wear prevailed due to trace or less tribo-oxides; at 400°C, oxidative wear prevailed with the predominant tribo-oxides of Fe3O4 and Fe2O3. It can be suggested that the antioxidation of the stainless steel postponed the occurrence of oxidative wear to a higher test temperature. For adhesive wear, the wear resistance, roughly following Archard's rule, was directly proportional to hardness besides the specimen tempered at 500°C with grain boundary brittleness. But for elevated-temperature wear, a better wear resistance required thermal stability and an appropriate combination of hardness and toughness. |
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Keywords: | Unlubricated Friction Stainless Steels Oxidative Wear |
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