In-situ observation of influence of metal types on wear process in dry conditions

Kazuyuki Yagi, Hiroyuki Tango, Takashi Izumi, Mamoru Tohyama, Koji Saito, Joichi Sugimura

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We conduct in-situ observations of the wear process of metals in dry conditions. To this end, we constructed an experiment to observe the wear process of a point contact area, created between a rotating sapphire disc and a metal pin. The experimental setup included a microscope and a camera with visible-light and near-infrared detectors. Several steels, including stainless steel, and copper alloys were tested as pin materials. The wear comprised plastic flow, formation of transfer layers from the metal pin onto the sapphire disc, and expansion of the contact area. The influences of metal compositions and base metals on the wear behaviour were discussed.

Original languageEnglish
Article number204162
Publication statusPublished - Jan 15 2022

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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