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Measurement of the residual stress field in MIG-welded Al-2024 and Al-7150 aluminium alloy compact tension specimens

Pratihar, S.; Stelmukh, V.; Hutchings, M.T.; Fitzpatrick, M.E.; Stuhr, U. and Edwards, L. (2006). Measurement of the residual stress field in MIG-welded Al-2024 and Al-7150 aluminium alloy compact tension specimens. Materials Science and Engineering A, 437(1) pp. 46–53.

DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1016/j.msea.2006.04.061
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Abstract

Neutron diffraction has been used to measure the residual-stress field in MIG-welded Al-2024 and Al-7150 aluminium alloy compact-tension (CT) specimens. The measurements were made on the POLDI time-of-flight diffractometer, which uses a multiple frame overlap method. Strains in the three principal directions of each specimen were determined from the measured lattice plane spacing as a function of position through the weld relative to stress-free reference lattice plane spacings obtained from a comb-like reference sample. The resultant calculated residual stresses are compared to those existing in the original welded plate from which the specimens were machined.

Item Type: Journal Article
ISSN: 0921-5093
Keywords: Aluminium alloys; Neutron diffraction; Time-of-flight; Residual stress; MIG welding
Academic Unit/Department: Mathematics, Computing and Technology > Engineering & Innovation
Item ID: 11262
Depositing User: Michael E. Fitzpatrick
Date Deposited: 08 Aug 2008 08:17
Last Modified: 02 Dec 2010 20:09
URI: http://oro.open.ac.uk/id/eprint/11262
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