REMAINING LIFE ASSESSMENT OF A 1Cr5Mo STEEL BY USING Z-PARAMETER METHOD

作     者：J.Zhao S.Q.Han S.M.Xie H.B.Gao L.Wang 

作者机构：Department of Materials Engineering Dalian University of Technology Dalian 116024 ChinaDepartment of Materials Engineering Dalian University of Technology Dalian 116024 ChinaDepartment of Materials Engineering Dalian University of Technology Dalian 116024 ChinaDepartment of Materials Engineering Dalian University of Technology Dalian 116024 ChinaDepartment of Materials Engineering Dalian University of Technology Dalian 116024 China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2004年第17卷第4期

页      面：601-605页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 0703[理学-化学] 0811[工学-控制科学与工程] 

主　　题：life assessment spheroidization carbides creep rupture 

摘      要：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 a vs. Larson-Miller parameter P of the steel can be expressed as: P=29.608-5. 085logσ. A family of curves parallel to the master curve can be expressed as: P=29.608-Z-5.085logσ, 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 (mi-crostructural degradation) can be expressed as: Z=0.203(E-1).