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Title: Residual stress measurements of welded components using synchrotron and neutron diffraction.

Abstract

Residual stress remains the single largest unknown in industrial damage situations. Residual stresses have a significant effect on corrosion, fracture resistance, creep and corrosion/fatigue performance and a reduction of these stresses is normally desirable. In this research high energy synchrotron (70 keV) radiation (at the Advanced Photon Source) and thermal neutrons (at the Lucas Heights Research Reactor) have been employed to investigate and compare the residual stress characteristics in fully restrained samples with different numbers of weld beads. The aim of the research was to characterize the residual stress distribution which arises in a welded component with increasing number of beads. The number and resolution of the measurements carried out in this work reveal significant features of the residual stress pattern in single bead in the as-welded condition and after post-weld heat treatment. The intention is to provide key data for the validation of design, fitness-for-purpose methodologies and finite-element tools. In this presentation the details of the synchrotron X-ray and neutron techniques will be compared and contrasted, utilizing results from a number of weldment samples.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC); WTIA; ANSTO; AINSE; ASRP
OSTI Identifier:
982617
Report Number(s):
ANL/XSD/CP-59437
Journal ID: 0043-2288; TRN: US1005342
DOE Contract Number:
DE-AC02-06CH11357
Resource Type:
Conference
Resource Relation:
Journal Name: Weld. World; Journal Volume: 51; Journal Issue: 2007; Conference: 60th Annual Assembly and International Conference on Welding (IIW 2007); Jul. 1, 2007 - Jul. 8, 2007; Cavtat and Dubrovnik, Croatia
Country of Publication:
United States
Language:
ENGLISH
Subject:
43 PARTICLE ACCELERATORS; ADVANCED PHOTON SOURCE; CORROSION FATIGUE; HEAT TREATMENTS; NEUTRON DIFFRACTION; NEUTRONS; RESEARCH REACTORS; RESIDUAL STRESSES; SYNCHROTRONS; THERMAL NEUTRONS; WELDED JOINTS; WELDING

Citation Formats

Paradowska, A. M., Price, J. W .H, Finlayson, T. R., Lienert, U., Ibrahim, R., Monash Univ., and Univ. of Melbourne. Residual stress measurements of welded components using synchrotron and neutron diffraction.. United States: N. p., 2007. Web.
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Paradowska, A. M., Price, J. W .H, Finlayson, T. R., Lienert, U., Ibrahim, R., Monash Univ., & Univ. of Melbourne. Residual stress measurements of welded components using synchrotron and neutron diffraction.. United States.
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Paradowska, A. M., Price, J. W .H, Finlayson, T. R., Lienert, U., Ibrahim, R., Monash Univ., and Univ. of Melbourne. Mon . "Residual stress measurements of welded components using synchrotron and neutron diffraction.". United States. doi:.
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@article{osti_982617,
title = {Residual stress measurements of welded components using synchrotron and neutron diffraction.},
author = {Paradowska, A. M. and Price, J. W .H and Finlayson, T. R. and Lienert, U. and Ibrahim, R. and Monash Univ. and Univ. of Melbourne},
abstractNote = {Residual stress remains the single largest unknown in industrial damage situations. Residual stresses have a significant effect on corrosion, fracture resistance, creep and corrosion/fatigue performance and a reduction of these stresses is normally desirable. In this research high energy synchrotron (70 keV) radiation (at the Advanced Photon Source) and thermal neutrons (at the Lucas Heights Research Reactor) have been employed to investigate and compare the residual stress characteristics in fully restrained samples with different numbers of weld beads. The aim of the research was to characterize the residual stress distribution which arises in a welded component with increasing number of beads. The number and resolution of the measurements carried out in this work reveal significant features of the residual stress pattern in single bead in the as-welded condition and after post-weld heat treatment. The intention is to provide key data for the validation of design, fitness-for-purpose methodologies and finite-element tools. In this presentation the details of the synchrotron X-ray and neutron techniques will be compared and contrasted, utilizing results from a number of weldment samples.},
doi = {},
journal = {Weld. World},
number = 2007,
volume = 51,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}
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