• Title/Summary/Keyword: 시효

검색결과 437건 처리시간 0.029초

STS 316의 시효 열화 처리와 크리프 거동 특성 (Thermal Aging and Creep Rupture Behavior of STS 316)

  • 임병수
    • 한국생산제조학회지
    • /
    • 제8권4호
    • /
    • pp.123-129
    • /
    • 1999
  • Although type 316 stainless steel is widely used such as in reactors of petrochemical plants and pipes of steam power plants and s attracting attention as potential basic material for the fast breeder reactor structure alloys in nuclear power plants and is attracting attention as potential basic material for the fast breeder reactor structure alloys in nuclear power plants the effect of precipitates which form during the long term exposure at service temperature on creep properties is not known sufficiently. In this study to investigate the creep properties and the influence of prior aging on the microstructure to form precipitates specimens were first solutionized at 113$0^{\circ}C$ for 20 minutes and then aged for different times of 0 hr, 100 hrs, 1000 hrs and 2200 hrs at 75$0^{\circ}C$ After heat treatments tensile tests both at room temperature and $650^{\circ}C$ and constant load creep ruptuere tests were carried out.

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