Influence of the countermaterial on the dry sliding friction and wear behaviour of low temperature carburized AISI316L steel |
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| Affiliation: | 1. Laboratório de Materiais, Universidade Federal de Santa Catarina - UFSC, Campus Trindade, Florianópolis, SC 88040-900, Brazil;2. Universidade Tecnológica Federal do Paraná - UTFPR, Campus Curitiba, Curitiba, PR 80230-901, Brazil;1. School of Mechanical and Power Engineering, Nanjing Tech University, No.30 Puzhu South Road, Nanjing 211816, China;2. Jiangsu Key Lab of Design and Manufacture of Extreme Pressure Equipment, Nanjing 211816, China |
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| Abstract: | Low temperature carburising (LTC) allows a significant hardness increase, with a consequent increase in wear resistance, without deteriorating corrosion behaviour. However, wear resistance strongly depends on contact conditions, therefore this work focuses on the dry sliding behaviour of LTC-treated AISI316L austenitic stainless steel against several countermaterials (AISI316L, LTC-treated AISI316L, hard chromium or plasma-sprayed Al2O3–TiO2). LTC produced a hardened surface layer (C-supersaturated expanded austenite), which improved corrosion resistance in NaCl 3.5% and increased wear resistance, to an extent which depends on both normal load and countermaterial. The best results were obtained when at least one of the contacting bodies was LTC-treated, because this condition led to mild tribo-oxidative wear. However, LTC did not improve the behaviour in terms of friction. |
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| Keywords: | Dry sliding AISI316L austenitic stainless steel Low-temperature carburizing Countermaterial |
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