Evolution in microstructure and compression behaviour of a metallic sintered friction material after braking
| Autor: | Philippe Dufrenoy, Stephania Kossman, J. Rapontchombo, Itziar Serrano-Munoz, F. Brunel, Vincent Magnier |
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| Přispěvatelé: | Matériaux, ingénierie et science [Villeurbanne] (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Université de Lille, Institute of Plant Biochemistry and Biotechnology, University of Muenster, Westfälische Wilhelms-Universität Münster (WWU), Laboratoire de Mécanique de Lille - FRE 3723 (LML), Université de Lille, Sciences et Technologies-Centrale Lille-Centre National de la Recherche Scientifique (CNRS), Unité de Recherche en Chimie Organique et Macromoléculaire (URCOM), Université Le Havre Normandie (ULH), Normandie Université (NU)-Normandie Université (NU), Westfälische Wilhelms-Universität Münster = University of Münster (WWU) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Digital image correlation
Materials science 02 engineering and technology Surfaces and Interfaces Tribology 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Compression (physics) Durability Surfaces Coatings and Films Characterization (materials science) [SPI.MAT]Engineering Sciences [physics]/Materials 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Materials Chemistry Composite material Diffusion (business) 0210 nano-technology Material properties ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Wear Wear, Elsevier, 2019, 436-437, pp.202947. ⟨10.1016/j.wear.2019.202947⟩ Wear, 2019, 436-437, pp.202947. ⟨10.1016/j.wear.2019.202947⟩ |
| ISSN: | 0043-1648 |
| DOI: | 10.1016/j.wear.2019.202947⟩ |
| Popis: | Due to the complexity of friction materials, the characterization of the tribological properties is prioritised over the bulk material properties even though the tribology is expected to be influenced by the material behaviour. The extent of this relationship is still unknown and further knowledge is required to account for the load history and evolution of the bulk properties. With this view, the compression behaviour and microstructure of a semi-metallic friction material with reduced formulation were investigated before and after a braking program. The thermal loading was monitored with inserted thermocouples. Uniaxial compression tests coupled with Digital Image Correlation (DIC) show significant changes in the worn material, which develops a compression behaviour similar to that of a tri-layered material. The microstructural analysis indicates microcracking of the metallic matrix and carbon diffusion in the Fe-phase. The thermal loading was found to be the key parameter controlling both the friction behaviour and evolution of the material properties. The expected effects of material evolution on the contact uniformity, durability and tribology are discussed. |
| Databáze: | OpenAIRE |
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