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EXPERIMENTAL AND NUMERICAL EXAMINATION OF THE WEAR BEHAVIORS OF AA 7075 ALLOY COATED WITH Al–SiC BY USING HOT PRESS SINTERING METHOD

Author

Listed:
  • H. BALLIKAYA

    (Department of Machine and Metal Technologies, Malatya Organized Industrial Zone Vocational High School, Inonu University, Malatya 44100, Turkey)

Abstract

This study was carried out to improve the surface of the AA7075 alloy, which does not resist wear. Therefore Al–SiC composite layer on the surface of AA 7075 material was coated with Al+5vol.%SiC powders under 600°C and 100, 120, 140 MPa pressure by the hot pressing sintering method. The microstructure of the transition zone between the coating and the substrate material was analyzed by using optical microscopy (OM), energy dispersive X-ray spectroscopy (EDS), and scanning electron microscopy (SEM) techniques. In addition, XRD measurement and microhardness of the coating layer were obtained. Coating surface was also subject to linear reciprocating wear test and coefficient of friction (COF), wear volume, and mass loss were detected. The results have shown that micro-pores between Al and SiC powders reduced by increasing the pressing pressure. However, although there was a reduction in wear volume and mass loss, microhardness values dramatically increased. Wear test was modeled in ANSYS 2021 R2 package program depending on Archard’s law and numerical analysis was conducted. As a result of the experimental results and numerical analysis, the volume loss values occurring in the coating area were found to be compatible with each other.

Suggested Citation

  • H. Ballikaya, 2023. "EXPERIMENTAL AND NUMERICAL EXAMINATION OF THE WEAR BEHAVIORS OF AA 7075 ALLOY COATED WITH Al–SiC BY USING HOT PRESS SINTERING METHOD," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 30(06), pages 1-12, June.
    • Handle: RePEc:wsi:srlxxx:v:30:y:2023:i:06:n:s0218625x23500373
    DOI: 10.1142/S0218625X23500373
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