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

doi:10.1016/j.msea.2009.12.022

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

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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 contribution	Residual stress in 7449 aluminium alloy forgings
Original language	English
Pages (from-to)	2603 - 2612
Journal	Materials Science and Engineering: A
Volume	527
DOIs	https://doi.org/10.1016/j.msea.2009.12.022
Publication status	Published - 2010

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Publisher: Elsevier

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title = "Residual stress in 7449 aluminium alloy forgings",

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 (",

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

note = "Publisher: Elsevier",

year = "2010",

doi = "10.1016/j.msea.2009.12.022",

language = "English",

volume = "527",

pages = "2603 -- 2612",

journal = "Materials Science and Engineering: A",

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TY - JOUR

T1 - Residual stress in 7449 aluminium alloy forgings

AU - Robinson, J.S.

AU - Hossain, S

AU - Truman, CE

AU - Paradowska, A.M.

AU - Hughes, D.J.

AU - Wimpory, R.C.

AU - Fox, M.E.

N1 - Publisher: Elsevier

PY - 2010

Y1 - 2010

N2 - 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 (

AB - 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 (

U2 - 10.1016/j.msea.2009.12.022

DO - 10.1016/j.msea.2009.12.022

M3 - Article (Academic Journal)

VL - 527

SP - 2603

EP - 2612

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Residual stress in 7449 aluminium alloy forgings

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