Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Determination of Optimal Austenitizing Temperature in High-Alloyed Tool Steels

고합금 공구강의 최적 오스테나이트 처리 온도 결정

  • Park, Dongsung (Division of Advanced Materials Engineering, Chonbuk National University) ;
  • Jun, Joong-Hwan (Advanced Process and Material R&D Group, Korea Institute of Industrial Technology) ;
  • Lee, Min-Ha (Advanced Process and Material R&D Group, Korea Institute of Industrial Technology) ;
  • Lee, Seok-Jae (Division of Advanced Materials Engineering, Chonbuk National University)
  • 박동성 (전북대학교 신소재공학부) ;
  • 전중환 (한국생산기술연구원 융합공정소재그룹) ;
  • 이민하 (한국생산기술연구원 융합공정소재그룹) ;
  • 이석재 (전북대학교 신소재공학부)
  • Received : 2017.05.12
  • Accepted : 2017.05.30
  • Published : 2017.07.30
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Abstract

In the present study, we investigated the optimal austenitizing temperature of high-alloyed tool steels from an industrial point of view. Austenitizing temperatures for manufacturing 25 commercial tool steels were surveyed with their alloy compositions. The relationship between the austenitizing temperatures and the critical equilibrium temperatures by thermodynamic-based calculation was analyzed and a correlation was found. Based on the austenitizing temperatures of 25 commercial tool steels and the thermodynamic calculation results, we proposed a simple equation to predict an optimal austenitizing temperature to achieve superior mechanical properties of high-alloyed tool steels. The applicability of the proposed equation was experimentally validated with a new developed tool steel.

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References

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