Prediction methodology of creep performance from stress relaxation measurements

被引：0

作者：

Guo, Jinquan ^{[1
]}

Shi, Huichao ^{[1
]}

Tian, Long ^{[1
]}

Li, Zhanjun ^{[1
]}

机构：

[1] Anyang Inst Technol, Lab Mech Struct Strength, Anyang 455000, Peoples R China

来源：

STRUCTURAL INTEGRITY IN NUCLEAR ENGINEERING | 2011年

基金：

中国国家自然科学基金;

关键词：

Stress relaxation tests; Stress relaxation model; Data conversion procedure; Creep behavior prediction; LIFE ASSESSMENT; DESIGN; STEEL;

D O I：

暂无

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

An estimation method to predict creep performances of high temperature structural materials has been proposed. The method is to use a simplified and normalized model of stress relaxation to derive creep strain rates and creep strain vs. time curves from stress relaxation measurements through an integrated analytical procedure according to the relationship between stress relaxation and creep, In order to validate the approach, the predicted results are compared to the experimental results of uni-axial isothermal creep tests conducted on 1Cr1ONiMoW2VNbN steel with the same temperature of stress relaxation tests. Good agreement between results of relaxation tests and the predicted results indicates that the developed method can be recommended in the creep behavior evaluation of high temperature materials.

引用

页码：157 / 160

页数：4

共 14 条

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