A Study on the surface hardening by repeated sliding contact

반복 미끄럼 접촉에 의한 표면층의 경화에 대한 연구

  • 박준목 (경북대학교 기계공학과 대학원) ;
  • 김석삼 (경북대학교 기계공학과)
  • Published : 1997.04.01

Abstract

Repeated sliding contact wear test was performed with copper specimens to obtain the relationship between wear and surface hardening. Wear surface and wear track section were observed by optical microscopy. Wear volume and micro-vikers hardness of sublayer below wear surface were obtained. These results suggested that wear mechanism depended on contact load than sliding velocity. Therefore wear mechanism was abrasive wear within critical contact load and adhesive wear over critical contact load. Wear rate increased with contact load, sliding distance but decreased with sliding velocity. Surface hardening increased with sliding velocity and sliding distance but decreased with contact load.