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국내 최대 기계·건설 공학연구정보
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    국내학술지 제목 게시판 내용
    제목(국문) 결정립 미세화에 따른 이상조직 탄소강의 하중에 따른 마멸기구
    제목(영문) Sliding Wear Mechanism of Utra-FIine Grained Low Carbon Dual Phase Steel as a Function of Applied Load
    저자 유현석 (H.S.Yu ,국민대학교 신소재공학부 ) ▷공저자네트워크등록하기
    이슬기 (S.K.Yi ,국민대학교 신소재공학부 ) ▷공저자네트워크등록하기
    신동혁 (D.H.Shin ,한양대학교 ) ▷공저자네트워크등록하기
    김용석 (Y.S.Kim ,국민대학교 신소재공학부 ) ▷공저자네트워크등록하기
    초록 Dry sliding wear behavior of ultra-fine grained (UFG) plain low carbon dual phase steel, of which microstructure consists of hard martensite in a ductile ferrite matrix, has been investigated. The wear characteristics of the UFG dual phase steel was compared with that of a coarse grained dual phase steel under various applied load conditions. Dry sliding wear test were carried out using a pin-on-disk type tester at various loads of 1N to 100N under a costant sliding speed condition of 0.20m/s against an AISI 52100 bearing steel ball at room temperature. The sliding distance was fixed as 1000m for all wear tests. The wear rate was calculated by dividing the weight loss, measured to the accuracy of 10-5g by the specific gravity and sliding distance. The worn surfaces and wear debris were analyzed to analyze strain hardening underneath the contact surfaces. The wear mechanism of the UFG dual phase steel was investigated with emphasis on the unstable nature of the grain boundaries of the UFG microstructure.
    keyword UFG Dual Phase Steel, Dry Sliding Wear, ECAP, Wear Mechanism, Martensite
    저널명 소성·가공 ▷관련저널보기
    VOL 16
    PAGE 299-303
    발표년도 2007
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