ミニチュア試験片による改良9Cr-1Mo鋼のクリープ損傷評価

抄録

This paper presents the creep damage evaluation of Mod.9Cr-1Mo steel using miniature specimens. Creep damaged materials were produced by interrupting creep tests at 600°C performed by using standard specimens. Uniaxial creep tests were conducted using miniature specimens with 1mm diameter taken from the gage portion of standard specimens at 600°C, to assess the creep damage of the standard specimen. It was found that times to creep rupture of miniature specimens were longer than those of standard specimens.