Friction and rolling–sliding wear of DC-pulsed plasma nitrided AISI 410 martensitic stainless steel |
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| Affiliation: | 1. Instituto Nacional de Tecnología Industrial, C.C. 157, B1650WAB San Martín, Argentina;2. Institut für Industrielle Fertigung und Fabrikbetrieb IFF, Universität Stuttgart Nobelstr. 12, D-70569 Stuttgart, Germany;3. Departamento de Engenharia de Materiais, Universidade Federal do Río Grande do Sul, Porto Alegre, RS, Brazil;4. Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA;1. Materials Research Group, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, UK;2. Departments of Aerospace & Mechanical Engineering and Materials Science, University of Southern California, Los Angeles, CA 90089-1453, USA;1. Pontifícia Universidade Católica do Rio Grande do Sul – PUCRS, Av. Ipiranga, 6681, 90619-900, Porto Alegre, Rio Grande do Sul, Brazil;2. Fundação de Ciência e Tecnologia do Rio Grande do Sul - CIENTEC, Cachoeirinha, Rio Grande do Sul, Brazil;1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Sichuan, Chengdu, 610500, China;2. Petroleum Engineering School, Southwest Petroleum University, Sichuan, Chengdu, 610500, China;3. School of Mechanical Engineering, Southwest Petroleum University, Sichuan, Chengdu, 610500, China |
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| Abstract: | In the present work, industrial-scale DC-pulsed plasma nitriding for 20 h at 673 K was used to improve the wear resistance of an AISI 410 martensitic stainless steel. The tribological behaviour was studied and compared to the behaviour of the same steel in as-received condition.Pin-on-disc dry tests, using an alumina ball as counter-body, were carried out to determine the evolution of the friction coefficient. The wear resistance was investigated using an Amsler-disc-machine, employing a dry combined contact of rolling–sliding with three different applied loads. The wear mechanisms involved during rolling–sliding of unnitrided and plasma nitrided steels were investigated by microscopic observation of the surfaces, the corresponding cross-sections and the produced wear debris.The combination of different wear mechanisms taking place in the wear process of unnitrided and nitrided materials were discussed and analyzed. In contrast to the unnitrided steel, DC-pulsed plasma nitrided samples presented an improvement in the friction coefficient and the wear rate. |
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