Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
권호 표지

The Estimate of Abrasion resistance of High chromium white cast irons by Dry sand/rubber wheel tester

토사마모실험을 통한 고크롬철계 주조합금의 내마모성 평가

  • 김상호 (대우중공업 중앙연구소 소재기술팀) ;
  • 김기열 (대우중공업 중앙연구소 소재기술팀) ;
  • 이범주 (대우중공업 중앙연구소 소재기술팀) ;
  • 조정환 (대우중공업 중앙연구소 소재기술팀) ;
  • 박채규 (대우중공업 건기본부 중장비담당)
  • Published : 1998.10.01
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Abstract

To apply the high chromium white cast irons for sliding parts of construction equipments, the wear characteristics of these alloys which have three kinds of microstructure(hypoeutectic, near-eutectic, hypereutectic) were investigated by dry sand/rubber wheel tester. Also, the effect of heat treatment was investigated for the same alloys. As result of the test, heat treatment have no effect on the wear characteristics. And, hypereutectic composition alloy has the highest wear resistance against SiO$_2$. Also after test, cracking was observed in eutectic and primary carbides of all materials tested. This phenomenon was important factor in the wear resistance.

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