A Review of Creep Deformation and Rupture Mechanisms of Low Cr-Mo Alloy for the Development of Creep Damage Constitutive Equations Under Lower Stress

Qihua Xu, Qiang Xu, Zhongyu Lou, Yong Xin Pang, Michael Short

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a review of creep deformation and rupture mechanisms of low Cr-Mo alloy for the development of its creep damage constitutive equations under lower stress level. The existing phenomenological type of creep damage constitutive equations, proposed and developed by Hayhurst, do suffer the deficiency of inaccuracy in predicting the creep strain under multi-axial situation. Furthermore, it was not developed specifically for low stress. The paper reports a critical review on the cavity nucleation and the cavity growth, the deformation mechanisms and the creep damage evolution characteristics of the low Cr-Mo alloy at the temperature ranging from 723K to 923K (450 ~650 ), particularly under low stress level ( ), to form the physical base for the development of creep damage constitutive equation. It covers the influence of the stress level, states of stress, and the failure criterion.
Original languageEnglish
Title of host publicationScientific Computing
EditorsHamid R. Arabnia, George A. Gravvanis, George Jandieri, Ashu M. G. Solo, Fernando G. Tinetti
PublisherCSREA Press
Pages165-171
Number of pages7
ISBN (Print)1601322380, 9781601322388
Publication statusPublished - 1 May 2015
EventThe 2013 International Conference on Scientific Computing - Las Vegas, United States
Duration: 22 Jul 201325 Jul 2013
https://worldacademyofscience.org/worldcomp13/ws/conferences/csc13.html

Publication series

NameThe 2013 WorldComp International Conference Proceedings
PublisherCSREA

Conference

ConferenceThe 2013 International Conference on Scientific Computing
Abbreviated titleCSC'13
CountryUnited States
CityLas Vegas
Period22/07/1325/07/13
Internet address

    Fingerprint

Cite this

Xu, Q., Xu, Q., Lou, Z., Pang, Y. X., & Short, M. (2015). A Review of Creep Deformation and Rupture Mechanisms of Low Cr-Mo Alloy for the Development of Creep Damage Constitutive Equations Under Lower Stress. In H. R. Arabnia, G. A. Gravvanis, G. Jandieri, A. M. G. Solo, & F. G. Tinetti (Eds.), Scientific Computing (pp. 165-171). (The 2013 WorldComp International Conference Proceedings). CSREA Press.