The development of creep damage constitutive equations for low Cr-Mo alloy steel and its weldment at low stress

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

Abstract

The ultimate objective of this research project is to develop creep damage constitutive equations for low Cr-Mo alloy and its weldment under low stress (0.2-0.4 yield stress, Oy ). This paper summarizes a critical analysis on the cavity nucleation and growth and the deformation mechanisms and creep damage evolution characteristics at low stress with temperature ranging from 450 °C to 650 °C, in order to firmly establish the physical base for the theoretical constitutive modeling work. Moreover, it covers the influence of the stress level on the development of cavity nucleation and growth, leading to the final rupture, and proposes and discusses a new idea for failure criterion to be used in the constitutive equations under uniaxial stress state. This paper contributes to knowledge and the development of methodology
Original languageEnglish
Title of host publication6th International ‘HIDA’ Conference
Subtitle of host publicationLife/Defect Assessment & Failures in High Temperature Plant
EditorsA. Shibli
PublisherETD Ltd, UK
Publication statusPublished - 2013
Event6th International High-temperature Defect Assessment (HIDA) Conference: Life/Defect Assessment & Failures in High Temperature Plant - Crown Plaza ANA Hotel, Glover Hill, Nagasaki, Japan
Duration: 2 Dec 20134 Dec 2013
Conference number: 6
http://www.etd-consulting.com/forthcoming-events-2/2013/12/2/6th-international-hida-conference

Conference

Conference6th International High-temperature Defect Assessment (HIDA) Conference
Abbreviated titleHIDA-6
CountryJapan
CityNagasaki
Period2/12/134/12/13
Internet address

Fingerprint Dive into the research topics of 'The development of creep damage constitutive equations for low Cr-Mo alloy steel and its weldment at low stress'. Together they form a unique fingerprint.

  • Cite this

    Xu, Q., Xu, Q., & Lou, Z. (2013). The development of creep damage constitutive equations for low Cr-Mo alloy steel and its weldment at low stress. In A. Shibli (Ed.), 6th International ‘HIDA’ Conference: Life/Defect Assessment & Failures in High Temperature Plant ETD Ltd, UK.