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Application of small angle neutron scattering to study creep cavitation in stainless steel weldments

Jazaeri, H.; Bouchard, P. J.; Hutchings, M. T.; Mamun, A. A. and Heenan, R. K. (2015). Application of small angle neutron scattering to study creep cavitation in stainless steel weldments. Materials Science and Technology, 31(5) pp. 535–539.

DOI (Digital Object Identifier) Link: https://doi.org/10.1179/1743284714Y.0000000577
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Abstract

In this paper, the use of small angle neutron scattering (SANS) to study creep cavitation around reheat cracking in two 316H austenitic stainless steel header components is reported. The components had been removed after long-time high temperature operation in nuclear power plants. Cavities up to 350 nm in size are quantified and their distribution relative to the crack, near the crack origin and away from the crack tip along the crack direction, is measured. Cavitation increases significantly on approaching the crack near the crack mouth. Cavitation is less prominent near the crack tip with minimal variation away from the crack tip. More extensive cavitation near the crack is found in the component with the longer reheat crack.

Item Type: Journal Item
Copyright Holders: 2014 Institute of Materials, Minerals and Mining
ISSN: 1743-2847
Keywords: austenitic stainless steel; creep damage; cavitation; small angle neutron scattering; reheat cracking
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Computing and Communications
Item ID: 41459
Depositing User: Hedieh Jazaeri
Date Deposited: 03 Dec 2014 14:45
Last Modified: 29 Nov 2016 16:09
URI: http://oro.open.ac.uk/id/eprint/41459
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