한국표면공학회지 (Journal of Surface Science and Engineering)

  • 제40권6호
  • /
  • Pages.254-257
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  • 2007
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  • 1225-8024(pISSN)
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  • 2288-8403(eISSN)
한국표면공학회 (The Korean Institute of Surface Engineering)
권호 표지
DOI QR코드

DOI QR Code

SKD61과 Radical Nitriding 처리된 SKD61 기판상에 Arc Ion Plating으로 증착된 TiN 박막의 미세구조 및 기계적 특성, 마찰 및 접착력에 관한 연구

A Study on Microstructure, Mechanical Properties, Friction and Adhesion of TiN Thin Films Coated on SKD61 and Radical Nitrided SKD61 Substrates by Arc Ion Plating

  • 주윤곤 (창원대학교 나노신소재공학부) ;
  • 윤재홍 (창원대학교 나노신소재공학부) ;
  • 방위 (창원대학교 나노신소재공학부) ;
  • 장세굉 (창원대학교 나노신소재공학부) ;
  • 조동율 (창원대학교 나노신소재공학부) ;
  • 하성식 ((주)한국제강)
  • Joo, Yun-Kon (Dept. of Nano and Advanced Materials Engineering, Changwon National Univ.) ;
  • Yoon, Jae-Hong (Dept. of Nano and Advanced Materials Engineering, Changwon National Univ.) ;
  • Fang, Wei (Dept. of Nano and Advanced Materials Engineering, Changwon National Univ.) ;
  • Zhang, Shi-Hong (Dept. of Nano and Advanced Materials Engineering, Changwon National Univ.) ;
  • Cho, Tong-Yul (Dept. of Nano and Advanced Materials Engineering, Changwon National Univ.) ;
  • Ha, Sung-Sik (Han Kook Steel & Mill Co., Ltd.)
  • 발행 : 2007.12.31
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초록

TiN coating on tool steel has been widely used for the improvement of durability of tools. In this work, radical nitriding(RN) is carried out on SKD61 at $450^{\circ}C$ for 5 hours in the ammonia gas pressure $2.7{\times}10^3\;Pa$. The TiN coating is carried out by arc ion plating(AIP) with the process parameters: arc power 150 A, bias voltage -50V, coating time 40 minutes and nitrogen gas pressure $4{\times}10^3\;Pa$. Hardness, elastic modulus, friction coefficient and adhesion of TiN coating on substrates of both TiN/SKD61 and TiN/RN SKD61 coatings are investigated comparatively. The primary crystalline faces of TiN surface are(200) and(111) for TiN/SKD61 and TiN/RN SKD61 respectively. In addition to the primary phase, Fe phase exists in TiN/SKD61 coating, but not in TIN/RN SKD61. The hardness of TiN/RN SKD61 is about 700 Hv, 250 Hv(56%) higher than that of TiN/SKD61 at the near interface of TiN and substrates. At the TiN surface, hardness of TiN/RN SKD61 is 2,149 Hv, 71 Hv(3%) higher than that of TiN/SKD61. The elastic modulus of TiN coating is improved to 26.7 GPa(6%) by radical nitriding. The adhesion is improved by the RN coating showing no spalling. buckling and chipping on the scratch test track which are shown on the non-RN TiN/SKD61.

키워드

참고문헌

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피인용 문헌

  1. CrN and TiN Coatings for the Wear Resistance of Extrusion Mold for Magnesium vol.44, pp.6, 2011, https://doi.org/10.5695/JKISE.2011.44.6.233