| 1 | REMAINING LIFE ASSESSMENT OF A 1Cr5Mo STEEL BY USING Z-PARAMETER METHOD显示文摘Z-parameter method based on the Larson-Miller relationship is proposed to assess remaining life of a 1Cr5Mo steel. The non-linear master curve of stress σ vs. LarsonMiller parameter P of the steel can be expressed as: P=29.608-5.0851ogσ. A family of curves parallel to the master curve can be expressed as: P=29.608-Z-5.0851ogσ,where the value of Z represents the magnitude deviated from the master curve. A relationship between the value of Z-parameter and the level of spheroidization E (microstructural degradation) can be expressed as: Z=0.203(E-1). | J.Zhao S.Q.Han S.M.Xie H.B.Gao L.Wang | 2004 | Acta Metallurgica Sinica(English Letters)2004，17，4： | 9 |
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