Influence of prior deformation on creep crack growth behaviour of 316H austenitic steels

Hamed Yazdani Nezhad, Noel P. O'Dowd, Catrin M. Davies, Ali N. Mehmanparast, Kamran M. Nikbin

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

1 Citation (Scopus)

Abstract

The influence of pre-strain and pre-stress on creep crack growth behaviour of 316H austenitic steels is studied experimentally and numerically in this paper. Compact tension, C(T), specimens (25mm thickness) have been extracted from two steam headers, one as-received and one uniformly compressed to the strain value of 8%. The C(T) specimen extracted from the as-received header was compressed, introducing a non-uniform strain field. Creep crack growth (CCG) tests were performed at 550°C. Comparisons have been provided with the results from as-received C(T) specimens. Finite element (FE) analysis has been carried out to simulate the CCG behaviour of the C(T) specimens. By choosing the problem parameters appropriately, good agreement may be achieved between the FE predictions and the creep data.

Original languageEnglish
Title of host publicationASME 2012 Pressure Vessels and Piping Conference, PVP 2012
Place of PublicationNew York
Pages375-385
Number of pages11
EditionPARTS A AND B
DOIs
Publication statusPublished - 8 Aug 2013
EventASME 2012 Pressure Vessels and Piping Conference, PVP 2012 - Toronto, ON, Canada
Duration: 15 Jul 201219 Jul 2012

Publication series

NameAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
NumberPARTS A AND B
Volume6
ISSN (Print)0277-027X

Conference

ConferenceASME 2012 Pressure Vessels and Piping Conference, PVP 2012
Country/TerritoryCanada
CityToronto, ON
Period15/07/1219/07/12

Keywords

  • pressurized water reactors
  • valves
  • quality control
  • bonding
  • cantilevers
  • mechanical properties

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