Mapping residual strain induced by cold working and by laser shock peening using neutron transmission spectroscopy

Ranggi S. Ramadhan; Abdul K. Syed; Anton S. Tremsin; Winfried Kockelmann; Robert Dalgliesh; Bo Chen; David Parfitt; Michael E. Fitzpatrick

doi:10.1016/j.matdes.2018.01.054

Mapping residual strain induced by cold working and by laser shock peening using neutron transmission spectroscopy

Ranggi S. Ramadhan, Abdul K. Syed, Anton S. Tremsin, Winfried Kockelmann, Robert Dalgliesh, Bo Chen, David Parfitt, Michael E. Fitzpatrick

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Abstract

This paper presents 2D mapping of residual strains, induced by cold expansion and laser shock peening processing of aluminium alloy samples, by using Bragg edge neutron transmission. Neutron transmission uses information contained in the neutron beam transmitted through a sample. It is shown that neutron transmission strain mapping with high spatial resolution can provide important insights into the distribution of residual strains associated with processing of materials. The residual strain field around a cold-expanded hole can be revealed in detail, as can be the residual strain profile associated with laser peening. Results are correlated with measurements obtained by conventional neutron diffraction and incremental hole drilling. The residual strain variation around the cold-expanded hole and the depth of compressive residual strain generated by the peening process were captured with high spatial resolution, showing the advantages of neutron transmission over other well-established strain measurement methods by non-destructively generating a map of residual strains over a large area.

Original language	English
Pages (from-to)	56-64
Number of pages	9
Journal	Materials and Design
Volume	143
Early online date	31 Jan 2018
DOIs	https://doi.org/10.1016/j.matdes.2018.01.054
Publication status	Published - 5 Apr 2018

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Materials and Design. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Materials and Design 143 (2018) DOI: 10.1016/j.matdes.2018.01.054

© 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

Bragg edge analysis
Cold expansion
Laser shock peening
Neutron transmission
Residual strain
Strain mapping

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matdes.2018.01.054

Post-PrintAccepted author manuscript, 13.1 MBLicence: CC BY-NC-ND

Cite this

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title = "Mapping residual strain induced by cold working and by laser shock peening using neutron transmission spectroscopy",

abstract = "This paper presents 2D mapping of residual strains, induced by cold expansion and laser shock peening processing of aluminium alloy samples, by using Bragg edge neutron transmission. Neutron transmission uses information contained in the neutron beam transmitted through a sample. It is shown that neutron transmission strain mapping with high spatial resolution can provide important insights into the distribution of residual strains associated with processing of materials. The residual strain field around a cold-expanded hole can be revealed in detail, as can be the residual strain profile associated with laser peening. Results are correlated with measurements obtained by conventional neutron diffraction and incremental hole drilling. The residual strain variation around the cold-expanded hole and the depth of compressive residual strain generated by the peening process were captured with high spatial resolution, showing the advantages of neutron transmission over other well-established strain measurement methods by non-destructively generating a map of residual strains over a large area.",

keywords = "Bragg edge analysis, Cold expansion, Laser shock peening, Neutron transmission, Residual strain, Strain mapping",

author = "Ramadhan, {Ranggi S.} and Syed, {Abdul K.} and Tremsin, {Anton S.} and Winfried Kockelmann and Robert Dalgliesh and Bo Chen and David Parfitt and Fitzpatrick, {Michael E.}",

note = "NOTICE: this is the author{\textquoteright}s version of a work that was accepted for publication in Materials and Design. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Materials and Design 143 (2018) DOI: 10.1016/j.matdes.2018.01.054 {\textcopyright} 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ ",

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AU - Ramadhan, Ranggi S.

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AU - Dalgliesh, Robert

AU - Chen, Bo

AU - Parfitt, David

AU - Fitzpatrick, Michael E.

N1 - NOTICE: this is the author’s version of a work that was accepted for publication in Materials and Design. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Materials and Design 143 (2018) DOI: 10.1016/j.matdes.2018.01.054 © 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

PY - 2018/4/5

Y1 - 2018/4/5

N2 - This paper presents 2D mapping of residual strains, induced by cold expansion and laser shock peening processing of aluminium alloy samples, by using Bragg edge neutron transmission. Neutron transmission uses information contained in the neutron beam transmitted through a sample. It is shown that neutron transmission strain mapping with high spatial resolution can provide important insights into the distribution of residual strains associated with processing of materials. The residual strain field around a cold-expanded hole can be revealed in detail, as can be the residual strain profile associated with laser peening. Results are correlated with measurements obtained by conventional neutron diffraction and incremental hole drilling. The residual strain variation around the cold-expanded hole and the depth of compressive residual strain generated by the peening process were captured with high spatial resolution, showing the advantages of neutron transmission over other well-established strain measurement methods by non-destructively generating a map of residual strains over a large area.

AB - This paper presents 2D mapping of residual strains, induced by cold expansion and laser shock peening processing of aluminium alloy samples, by using Bragg edge neutron transmission. Neutron transmission uses information contained in the neutron beam transmitted through a sample. It is shown that neutron transmission strain mapping with high spatial resolution can provide important insights into the distribution of residual strains associated with processing of materials. The residual strain field around a cold-expanded hole can be revealed in detail, as can be the residual strain profile associated with laser peening. Results are correlated with measurements obtained by conventional neutron diffraction and incremental hole drilling. The residual strain variation around the cold-expanded hole and the depth of compressive residual strain generated by the peening process were captured with high spatial resolution, showing the advantages of neutron transmission over other well-established strain measurement methods by non-destructively generating a map of residual strains over a large area.

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Mapping residual strain induced by cold working and by laser shock peening using neutron transmission spectroscopy

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