Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Effect of the Solution Treatment & Aging Treatment on the Microstructure & Mechanical Property of 17-4 PH Stainless Steel

용체화처리 및 시효처리가 17-4 석출경화형 스테인레스강 정밀주조품의 미세조직 및 기계적 성질에 미치는 영향

  • Yu, Sung-Kon (Dept. of Materials Eng., Kei Myung University) ;
  • Lee, Kyong-Whoan (Dept. of Casting Technology, Korea Academy of Industrial Technology) ;
  • Ra, Tae-Yeob (Dept. of Casting Technology, Korea Academy of Industrial Technology)
  • 유성곤 (계명대학교 재료공학과) ;
  • 이경환 (생산기술연구원 주물기술사업부) ;
  • 나태엽 (생산기술연구원 주물기술사업부)
  • Published : 1992.10.20
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Abstract

The effect of the solution & aging treatment on the tensile strength, yield strength, elongation, reduction of area, hardness was studied in the 17-4 PH stainless steel. SEM pictures were also taken in order to examine the fracture surfaces and precipitated particles. X-ray diffraction patterns for the heat treated samples were also observed. Mechanical properties of the heat treated samples were superior to those of as cast samples. Tensile strength, yield strength, hardeness decreased with the increase of aging temperature. On the other hand, elongation and reduction of area increased as the aging temperature increased.

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