Energy-based approach for the evaluation of low cycle fatigue behaviour of 2.25Cr-1Mo steel at elevated temperature

被引：56

作者：

Callaghan, M. D. ^{[1
]}

Humphries, S. R. ^{[2
]}

Law, M. ^{[3
]}

Ho, M. ^{[4
]}

Bendeich, P. ^{[3
]}

Li, H. ^{[1
]}

Yeung, W. Y. ^{[2
]}

机构：

[1] Univ Wollongong, Fac Engn, Wollongong, NSW 2522, Australia

[2] Univ Technol Sydney, Dept Phys & Adv Mat, Sydney, NSW 2007, Australia

[3] Australian Nucl Sci & Technol Org, Inst Mat Engn, Lucas Heights, NSW 2234, Australia

[4] Australian Nucl Sci & Technol Org, Reactor Operat, Lucas Heights, NSW 2234, Australia

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2010年 / 527卷 / 21-22期

基金：

澳大利亚研究理事会;

关键词：

2.25Cr-1Mo steel; Ferritic steel; Cyclic loading; Low cycle fatigue; Plastic strain energy; Fatigue toughness; STRAIN-ENERGY;

D O I：

10.1016/j.msea.2010.05.011

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The energy-based approach for the evaluation of low cycle fatigue behaviour of 2.25Cr-1Mo steel at elevated temperature has been investigated and detailed analyses discussed. Plastic strain energy was determined per cycle and found to characterise both crack initiation and propagation to failure regimes. At cyclic stabilisation, average plastic strain energy may be used as a suitable damage parameter and correlations between experimental and predicted data determined. The fatigue toughness to failure of the material was established and the development of a fatigue toughness to crack propagation analysis is presented. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：5619 / 5623

页数：5

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