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Evaluation of Adhesion Properties of Arc PVD Coatings on Non-Nitrided and Nitrided Various Substrates

모재의 재질 및 질화층 형성에 따른 Arc PVD 코팅의 접합특성 평가

  • 이정민 (부산대학교 대학원 정밀기계공학과) ;
  • 전성진 (부산대학교 대학원 정밀기계공학과) ;
  • 고대철 (부산대학교 ILIC) ;
  • 김병민 (부산대학교 정밀정형 및 금형가공연구소)
  • Published : 2006.10.01

Abstract

This paper was designed to assess the adhesive properties of hard coatings on non-nitrided and nitrided various tool steels. Estimations of adhesion were done to scratch test which is mainly used in hard coating. The critical load$(L_c)$ between coating and substrate is defined through analysis of frictional load vs. normal load curve, signals of acoustic emission and optical observations. Coatings employed in this study are TiN, CrN and TiAlN, tools as substrates are STD11, STD61 and SKH51. It was classified to substrates with/without intermediate nitrided layer and hard coatings on substrate were deposited by arc PVD. Results showed that harder substrates and coatings give higher values of critical loads.

Keywords

Arc PVD Coating;Scratch Test;Nitride;Tool Steel

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