Surface structuring of case hardened chain pins by cold-sprayed microparticles to modify friction and wear properties |
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| Institution: | 1. Particle and Process Engineering, University of Kaiserslautern, Gottlieb-Daimler-Straße 47, Kaiserslautern, Germany;2. Institute of Machine Elements, Gears, and Transmissions, University of Kaiserslautern, Gottlieb-Daimler-Straße 42, Kaiserslautern, Germany;3. Materials Testing, Gottlieb-Daimler-Straße 47, Kaiserslautern, Germany;4. IFOS Institute, Trippstadter Straße 120, Kaiserslautern, Germany;1. Institute of Biochemical Engineering, Technical University of Munich, Garching, Germany;2. Professorship of Industrial Biocatalysis, Technical University of Munich, Garching, Germany;3. TUM AlgaeTec Center, Ottobrunn, Germany;1. Institute of Solid State Chemistry and Mechanochemistry, SB RAS, Novosibirsk, Russia;2. Novosibirsk State University, Novosibirsk, Russia;3. Institute of Catalysis, SB RAS, Novosibirsk, Russia;1. Department of Nuclear Engineering, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan;2. Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, D-67663 Kaiserslautern, Germany;3. Quantum Science and Engineering Center, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan;4. CREST, Japan Science and Technology Agency (JST), Chiyoda, Tokyo 102-0075, Japan;1. School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China;2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;3. Engineering Research Center of Seawater Utilization Technology of Ministry of Education, Hebei University of Technology, Tianjin 300130, China;1. R&D OSG Corporation, Honnogahara 1-15, Toyokawa 442-8544, Japan;2. Department of Innovative System Engineering, Nippon Institute of Technology, Miyashiro-machi, Saitama 345-8501, Japan |
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| Abstract: | This paper presents the results of the application of a cold spray technique for structuring metallic surfaces with microparticles. The resulting changes in surface properties were characterized to observe their influences on the tribological behavior of the structured surface. The spray technique was applied to a technical component, a 16MnCr5 steel chain pin, designed to be mounted in a linear reciprocating tribometer. TiO2 microparticles were used to structure the surface with a homogeneous distribution of singly dispersed particles, rather than a homogeneous closed coating on the surface. Tribometer tests were performed to directly compare structured and unstructured chain pins, and a significantly reduced sliding friction coefficient was observed for the structured pin. The pins were characterized in detail by surface analysis prior to and after application of the tribological load to set the surface parameters and surface chemistry, even on the microscale. It was confirmed that the particle structuring induced changes in the surface properties, and the durability of the changes after tribological loading was evaluated. |
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| Keywords: | Cold spraying Surface structuring Driving chain Sliding friction |
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