열처리공학회지 (Journal of the Korean Society for Heat Treatment)

  • 제14권2호
  • /
  • Pages.81-88
  • /
  • 2001
  • /
  • 1225-1070(pISSN)
  • /
  • 2508-4046(eISSN)
한국열처리공학회 (The Korean Society for Heat Treatment)
권호 표지

금형공구강의 후산화와 침류질화에 의해 형성된 복합층의 조직과 특성에 관한 연구

The Microstructures and Properties of Duplex Layer on the Tool Steel Formed by Post-oxidation and Sulfnitriding

  • 이재식 (울산대학교 지역협력연구센터 기계부품 및 소재특성 평가 연구센터/첨단소재공학부) ;
  • 김한군 (부경대학교 공과대학 금속공학과) ;
  • 유용주 (울산대학교 지역협력연구센터 기계부품 및 소재특성 평가 연구센터/첨단소재공학부)
  • Lee, J.S. (RRC/ReMM. School of Mat & Met. Eng., University of Ulsan) ;
  • Klm, H.G. (Dept. of Me., Pukyong National University) ;
  • You, Y.Z. (RRC/ReMM. School of Mat & Met. Eng., University of Ulsan)
  • 투고 : 2000.12.15
  • 발행 : 2001.03.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The effects of post-oxidation and sulfnitriding treatments on the phase transformation in the nitrided case of tool steels have been studied. Dense and compact $Fe_3O_4$ layer was formed at the outer surface of nitride compound layer by post-oxidation treatment and multi layer of iron sulfide(FeS) was formed in the compound layer by sulfnitriding treatment. The surface hardness decreased because of formation of the soft oxide or sulfide at the nitride surface. Diffusion layer of nitride case was not affected by post-oxidation treatment or sulfnitriding treatment of nitrided alloy tool steels.

키워드

과제정보

연구 과제 주관 기관 : 울산대학교