Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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CrN and TiN Coatings for the Wear Resistance of Extrusion Mold for Magnesium

마그네슘 압출용 금형의 내마모성 향상을 위한 CrN, TiN 코팅

  • Lee, Su-Young (Department of Materials Engineering, Korea University of Technology and Education) ;
  • Kim, Sang-Ho (Department of Materials Engineering, Korea University of Technology and Education)
  • 이수영 (한국기술교육대학교 신소재공학과) ;
  • 김상호 (한국기술교육대학교 신소재공학과)
  • Received : 2011.11.25
  • Accepted : 2011.12.30
  • Published : 2011.12.31
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Abstract

The friction and wear characteristics of CrN and TiN coatings on SKD61 which is mold material using for extrusion of AZ80 magnesium alloy were investigated. The coatings were deposited by the arc ion-plating method, and the thickness were about $3.59{\mu}m$ and $3.28{\mu}m$, respectively. Reciprocating friction wear tests were conducted by varying pin load and temperature of counter substrate at un-lubricated condition. The pin loads were 11, 15 and 19 kgf, and the substrate temperatures were room temperature and $120^{\circ}C$. CrN coating which has a lower friction coefficient and a smaller adhesive wear with AZ80 magnesium alloy showed better wear resistance than TiN coating.

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References

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