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Friction

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Analysis of the high-temperature dry sliding behavior of CoCrFeNiTi0.5Alx high-entropy alloys

  • Azmi ErdoğanEmail author
  • Mustafa Sabri Gök
  • Sakin Zeytin
Open Access
Research Article
  • 32 Downloads

Abstract

In this study, CoCrFeNiTi0.5Alx high-entropy alloys were produced by induction melting and their dry sliding wear behavior was examined at different temperatures. In addition to face-centered cubic (FCC) phases, low amounts of a tetragonal phase were detected in the microstructures of alloys without Al and microscratches were formed by wear particles on the worn surfaces of the alloy specimens. Two body-centered cubic (BCC) phases were detected in the alloy with 0.5Al and a fatigue-related extrusion wear mechanism was detected on the worn surface. The alloy specimen with a high Al content exhibited the best wear characteristics. No wear tracks were formed in single-phase BCC intermetallic alloys at room temperature and they exhibited a higher wear strength at high temperatures when compared to other samples.

Keywords

high-entropy alloy dry sliding wear friction intermetallic 

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Authors and Affiliations

  • Azmi Erdoğan
    • 1
    Email author
  • Mustafa Sabri Gök
    • 2
  • Sakin Zeytin
    • 3
  1. 1.Department of Metallurgy and Materials Engineering, Faculty of EngineeringBartın UniversityBartınTurkey
  2. 2.Department of Mechanical Engineering, Faculty of EngineeringBartın UniversityBartınTurkey
  3. 3.Department of Metallurgy and Materials Engineering, Faculty of EngineeringSakarya UniversitySakaryaTurkey

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