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Characterisation of creep cavitation damage in a stainless steel pressure vessel using small angle neutron scattering

Bouchard, P. J.; Treimer, W. and Fiori, F. (2002). Characterisation of creep cavitation damage in a stainless steel pressure vessel using small angle neutron scattering. Applied Physics A: Materials Science & Processing, 74(1 Supp) s1689-s1691.

DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1007/s003390201728
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Abstract

Grain-boundary cavitation is the dominant failure mode associated with initiation of reheat cracking, which has been widely observed in austenitic stainless steel pressure vessels operating at temperatures within the creep range (>450 °C). Small angle neutron scattering (SANS) experiments at the LLB PAXE instrument (Saclay) and the V12 double-crystal diffractometer of the HMI-BENSC facility (Berlin) are used to characterise cavitation damage (in the size range R=10-2000 nm) in a variety of creep specimens extracted from ex-service plant. Factors that affect the evolution of cavities and the cavity-size distribution are discussed. The results demonstrate that SANS techniques have the potential to quantify the development of creep damage in type-316H stainless steel, and thereby link microstructural damage with ductility-exhaustion models of reheat cracking.

Item Type: Journal Article
Copyright Holders: 2002 Springer-Verlag
ISSN: 1432-0630
Project Funding Details:
Funded Project NameProject IDFunding Body
Not SetNot SetEuropean Community
Not SetNot SetUK Health and Safety Executive
Academic Unit/Department: Mathematics, Computing and Technology > Engineering & Innovation
Item ID: 15076
Depositing User: P. John Bouchard
Date Deposited: 17 Mar 2009 14:54
Last Modified: 22 May 2014 10:53
URI: http://oro.open.ac.uk/id/eprint/15076
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