articleActa MaterialiaAug 16, 2024HYBRID OA

Wear-resistant CrCoNi nanocrystalline film via friction-driven surface segregation

QZQing ZhouZJZhichao JiaoZHZhuobin HuangYSYeran ShiYLYulong Li

Karlsruhe Institute of Technology · Northwestern Polytechnical University · +4 more institutions

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Abstract

Revealing the frictional behavior through the lens of structural and chemical evolution is crucial for comprehending the exceptional wear-resistance of alloys with complex composition. Here, we propose that superior wear resistance can be achieved via dynamic surface segregation during sliding at room temperature. This strategy was demonstrated in CrCoNi multi-principal element alloy (MPEA) films with nano-grain structure, which exhibit a remarkably low wear rate that is

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133
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Authors

10

Topics & keywords

Topics
Keywords
  • Materials science
  • Nanocrystalline material
  • Composite material
  • Surface (topology)
  • Metallurgy
  • Nanotechnology
  • Geometry
UN Sustainable Development Goals
  • Reduced inequalities
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