Wear behaviour of steel coatings produced by friction surfacing |
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| Authors: | D. Pereira,J. Gandra,J. Pamies-Teixeira,R.M. Miranda,P. Vilaç a |
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| Affiliation: | 1. UNIDEMI, Departamento de Engenharia Mecânica e Industrial, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal;2. IST, Instituto Superior Técnico, Universidade Técnica de Lisboa, Av. Rovisco Pais, 1, 1049-001 Lisboa, Portugal;3. Department of Engineering Design and Production, School of Engineering, Aalto University, P.O. Box 1420, FI-00076 Aalto, Finland |
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| Abstract: | Friction surfacing was performed to produce multi-layer coatings of AISI 1024, AISI 1045 and AISI H13 over mild steel substrates where a continuous joining was achieved between adjacent layers and between the clad and the substrate. Microscopic and hardness characterization revealed the presence of bainitic and martensitic microstructures which influenced the hardness of the coatings. The study aimed to determine which material combination was more wear-resistant. The analysis suggested that AISI 1024 presents the least wear, both in terms of friction coefficient and wear rate. This is due to the formation of adherent protective oxide layer which is not present in both the AISI 1045 and AISI H13 steels. |
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| Keywords: | Friction surfacing Wear Pin-on-disc Multi-layer Mild steel |
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