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Localized microstructural characterization of a dissimilar metal electron beam weld joint from an aerospace component

Sathiskumar Jothi Orcid Logo, Torsten Sebald, Eggert D. Reese, Steve Brown, Helen Davies Orcid Logo

Materials & Design, Volume: 90, Pages: 101 - 114

Swansea University Authors: Sathiskumar Jothi Orcid Logo, Steve Brown, Helen Davies Orcid Logo

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DOI (Published version): 10.1016/j.matdes.2015.10.119

Abstract

HICC and HE are known to cause failures in aerospace components. Hydrogen embrittlement (HE)and Hydrogen induced cold cracking (HICC) are influenced by the local misorientation, microstructural evolution, recrystallization of grains, residual plastic strain and the resultant grain boundary character...

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Published in: Materials & Design
ISSN: 0264-1275
Published: 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa23890
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spelling 2021-01-05T10:22:53.8504340 v2 23890 2015-10-22 Localized microstructural characterization of a dissimilar metal electron beam weld joint from an aerospace component 6cd28300413d3e63178f0bf7e2130569 0000-0001-7328-1112 Sathiskumar Jothi Sathiskumar Jothi true false 07a865adc76376646bc6c03a69ce35a9 Steve Brown Steve Brown true false a5277aa17f0f10a481da9e9751ccaeef 0000-0003-4838-9572 Helen Davies Helen Davies true false 2015-10-22 EEN HICC and HE are known to cause failures in aerospace components. Hydrogen embrittlement (HE)and Hydrogen induced cold cracking (HICC) are influenced by the local misorientation, microstructural evolution, recrystallization of grains, residual plastic strain and the resultant grain boundary characteristic distribution (GBCD) brought about by welding processes. It is vitally important to quantify the microstructural evolution, degree of residual plastic strain and determine the GBCD across dissimilar weld joints in order to assess the susceptibility of the weld joint to these phenomena. In this investigation a full microstructural characterization study was carried at various locations within and around a dissimilar weld joint of Pulse-plated Nickel and Inconel 718, taken from an aerospace component. Areas examined included the base metals, weld fusion zone and heat affected zones on both side of weld dissimilar joints, formed via electron beam welding. Scanning electron microscopy/electron backscattering diffraction was employed to measure the crystal orientation distribution, grain size distribution,, misorientation distribution, residual plastic strain, grain structure, GBCD of the dissimilar weld joint. Metallurgical examination was carried out using SEM on HAZ in IN718 to investigate the secondary phase precipitates due to welding process. Journal Article Materials & Design 90 101 114 0264-1275 Hydrogen induced cold cracking; Residual plastic strain; Grain boundary characteristic distribution; Dissimilar metal EB weld joint; Pulse plated nickel; Inconel 718; SEM/EBSD 15 1 2016 2016-01-15 10.1016/j.matdes.2015.10.119 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2021-01-05T10:22:53.8504340 2015-10-22T16:30:04.7744132 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Sathiskumar Jothi 0000-0001-7328-1112 1 Torsten Sebald 2 Eggert D. Reese 3 Steve Brown 4 Helen Davies 0000-0003-4838-9572 5 0023890-19022016142811.pdf JothiLocalizedMicrostructuralCharacterization2015AM.pdf 2016-02-19T14:28:11.1370000 Output 1000769 application/pdf Accepted Manuscript true 2016-10-23T00:00:00.0000000 false
title Localized microstructural characterization of a dissimilar metal electron beam weld joint from an aerospace component
spellingShingle Localized microstructural characterization of a dissimilar metal electron beam weld joint from an aerospace component
Sathiskumar Jothi
Steve Brown
Helen Davies
title_short Localized microstructural characterization of a dissimilar metal electron beam weld joint from an aerospace component
title_full Localized microstructural characterization of a dissimilar metal electron beam weld joint from an aerospace component
title_fullStr Localized microstructural characterization of a dissimilar metal electron beam weld joint from an aerospace component
title_full_unstemmed Localized microstructural characterization of a dissimilar metal electron beam weld joint from an aerospace component
title_sort Localized microstructural characterization of a dissimilar metal electron beam weld joint from an aerospace component
author_id_str_mv 6cd28300413d3e63178f0bf7e2130569
07a865adc76376646bc6c03a69ce35a9
a5277aa17f0f10a481da9e9751ccaeef
author_id_fullname_str_mv 6cd28300413d3e63178f0bf7e2130569_***_Sathiskumar Jothi
07a865adc76376646bc6c03a69ce35a9_***_Steve Brown
a5277aa17f0f10a481da9e9751ccaeef_***_Helen Davies
author Sathiskumar Jothi
Steve Brown
Helen Davies
author2 Sathiskumar Jothi
Torsten Sebald
Eggert D. Reese
Steve Brown
Helen Davies
format Journal article
container_title Materials & Design
container_volume 90
container_start_page 101
publishDate 2016
institution Swansea University
issn 0264-1275
doi_str_mv 10.1016/j.matdes.2015.10.119
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description HICC and HE are known to cause failures in aerospace components. Hydrogen embrittlement (HE)and Hydrogen induced cold cracking (HICC) are influenced by the local misorientation, microstructural evolution, recrystallization of grains, residual plastic strain and the resultant grain boundary characteristic distribution (GBCD) brought about by welding processes. It is vitally important to quantify the microstructural evolution, degree of residual plastic strain and determine the GBCD across dissimilar weld joints in order to assess the susceptibility of the weld joint to these phenomena. In this investigation a full microstructural characterization study was carried at various locations within and around a dissimilar weld joint of Pulse-plated Nickel and Inconel 718, taken from an aerospace component. Areas examined included the base metals, weld fusion zone and heat affected zones on both side of weld dissimilar joints, formed via electron beam welding. Scanning electron microscopy/electron backscattering diffraction was employed to measure the crystal orientation distribution, grain size distribution,, misorientation distribution, residual plastic strain, grain structure, GBCD of the dissimilar weld joint. Metallurgical examination was carried out using SEM on HAZ in IN718 to investigate the secondary phase precipitates due to welding process.
published_date 2016-01-15T03:28:16Z
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