Residual stress in 7449 aluminium alloy forgings

J.S. Robinson, S Hossain, CE Truman, A.M. Paradowska, D.J. Hughes, R.C. Wimpory, M.E. Fox

Research output: Contribution to journalArticle (Academic Journal)peer-review

63 Citations (Scopus)

Abstract

The through thickness residual stress distributions within three 120mmthick rectilinear forgings, made from the high strength aluminium alloy 7449 have been measured using both neutron diffraction and deep hole drilling. Neutron diffraction measurements were made on two instruments, one using a pulsed spallation neutron source, the other a steady state reactor source. Heat treatment of the forgings included a rapid quench into cold water and it was the residual stresses arising from this step that were initially measured. Neutron diffraction measurements indicated large magnitude (>250 MPa) tensile residual stresses in the centre of an as quenched forging, balanced by surface regions stressed in compression (
Translated title of the contributionResidual stress in 7449 aluminium alloy forgings
Original languageEnglish
Pages (from-to)2603 - 2612
JournalMaterials Science and Engineering: A
Volume527
DOIs
Publication statusPublished - 2010

Bibliographical note

Publisher: Elsevier

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