Creep failure model of a tempered martensitic stainless steel integrating multiple deformation and damage mechanisms

被引：41
作者：
Gaffard, V [1 ]
Besson, J [1 ]
Gourgues-Lorenzon, AF [1 ]
机构：
[1] Ecole Natl Super Mines, Ctr Mat, CNRS, UMR 7633, F-91003 Evry, France
来源：
INTERNATIONAL JOURNAL OF FRACTURE | 2005年 / 133卷 / 02期
关键词：
creep time to failure; Finite Element Modelling; high temperature creep flow and damage; 9Cr1Mo-NbV martensitie stainless steel;
D O I：
10.1007/s10704-005-2528-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new model considering both deformation and damage evolution under multiple viscoplastic mechanisms is used to represent high temperature creep deformation and damage of a martensitic stainless steel in a wide range of load levels. First, an experimental database is built to characterise both creep flow and damage behaviour using tests on various kinds of specimens. The parameters of the model are fitted to the results and to literature data for long term creep exposure. An attempt is made to use the model to predict creep time to failure up to 10(5) h.
引用
收藏
页码：139 / 166
页数：28
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