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

S. Pratihar; V. Stelmukh; M. T. Hutchings; M. E. Fitzpatrick; U. Stuhr; L. Edwards

doi:10.1016/j.msea.2006.04.061

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

S. Pratihar, V. Stelmukh, M. T. Hutchings, M. E. Fitzpatrick, U. Stuhr, L. Edwards

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

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.

Original language	English
Pages (from-to)	46-53
Number of pages	8
Journal	Materials Science and Engineering A
Volume	437
Issue number	1
Early online date	23 Jun 2006
DOIs	https://doi.org/10.1016/j.msea.2006.04.061
Publication status	Published - 10 Nov 2006
Externally published	Yes

Keywords

Aluminium alloys
MIG welding
Neutron diffraction
Residual stress
Time-of-flight

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.msea.2006.04.061

Cite this

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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.",

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AU - Pratihar, S.

AU - Stelmukh, V.

AU - Hutchings, M. T.

AU - Fitzpatrick, M. E.

AU - Stuhr, U.

AU - Edwards, L.

PY - 2006/11/10

Y1 - 2006/11/10

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AB - 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.

KW - Aluminium alloys

KW - MIG welding

KW - Neutron diffraction

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KW - Time-of-flight

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

Abstract

Keywords

ASJC Scopus subject areas

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