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Influence of cold compression on the residual stresses in 7449 forgings
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Hughes, Darren J. (2009) Influence of cold compression on the residual stresses in 7449 forgings. Advances in X-Ray Analysis, 52 . pp. 667-674. ISSN 1097-0002.
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Abstract
The through-thickness residual stress distributions within three large rectilinear aluminium alloy 7449 forgings have been determined using neutron diffraction. The results from two neutron diffraction instruments, ENGIN-X at ISIS, UK and SALSA at ILL, France are reported. Both instruments indicate large magnitude (>250 MPa) tensile residual stresses in the core of the as quenched forging balanced by surface regions stressed in compression (> -200MPa). The other two forgings had been stress relieved by cold compression and had significantly lower residual stress than the as-quenched forging. Increasing the amount of cold compression from 2½% to 4% was found to cause an insignificant difference in the final residual stress distribution. The neutron diffraction results are also compared to measurements made by the new incremental deep hole drilling technique and show good correlation.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||
Journal or Publication Title: | Advances in X-Ray Analysis | ||||
Publisher: | International Centre for Diffraction Data | ||||
ISSN: | 1097-0002 | ||||
Official Date: | 2009 | ||||
Dates: |
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Volume: | 52 | ||||
Page Range: | pp. 667-674 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access | ||||
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