Microstructure and Mechanical Properties of Laser Welded Ti–10V–2Fe–3Al (Ti1023) Titanium Alloy

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aut.relation.endpage7731
aut.relation.issue4en_NZ
aut.relation.journalJournal of Materials Research and Technologyen_NZ
aut.relation.startpage7721
aut.relation.volume9en_NZ
aut.researcherPasang, Timotius
dc.contributor.authorChamanfar, Aen_NZ
dc.contributor.authorHuang, M-Fen_NZ
dc.contributor.authorPasang, Ten_NZ
dc.contributor.authorTsukamoto, Men_NZ
dc.contributor.authorMisiolek, WZen_NZ
dc.date.accessioned2020-07-02T23:08:12Z
dc.date.available2020-07-02T23:08:12Z
dc.date.copyright2020-07en_NZ
dc.date.issued2020-07en_NZ
dc.description.abstractThe microstructure, microhardness, tensile properties, and fracture characteristics of the laser welded Ti–10V–2Fe–3Al (Ti1023) titanium alloy in the as-welded condition were examined. The mechanical properties were related to the microstructure development across the weld. In the base material (BM), the primary α phase with spherical and lath morphologies was dispersed in the β matrix. The volume fraction of the α phase in the heat affected zone (HAZ) decreased to some extent compared to the BM as a result of its partial dissolution and/or transformation to the β phase. In the fusion zone (FZ), primary α phase was completely transformed to the β phase. The BM exhibited a higher hardness than HAZ and FZ due to a higher volume fraction of the primary α phase, which is harder than β phase. The yield strength (YS) and ultimate tensile strength (UTS) of the weldments were somewhat lower than those of the BM due to the presence of a softer phase in the FZ and a lower volume fraction of the α phase in the HAZ. Also, the presence of porosity, undercut, concavity, and coarse columnar β grains in the FZ contributed to lower YS, UTS, and total elongation in the weldments in comparison to the unwelded material. Examination of the fracture surface in the weldment tensile samples indicated a mixed brittle and ductile fracture mode.
dc.identifier.citationJournal of Materials Research and Technology, 9(4), 7721-7731.
dc.identifier.doi10.1016/j.jmrt.2020.04.028en_NZ
dc.identifier.issn2238-7854en_NZ
dc.identifier.urihttps://hdl.handle.net/10292/13489
dc.languageenen_NZ
dc.publisherElsevier BVen_NZ
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S2238785420311947?via%3Dihub
dc.rights© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http:// creativecommons.org/licenses/by-nc-nd/4.0/).
dc.rights.accessrightsOpenAccessen_NZ
dc.subjectTitanium alloy; Laser welding; Microstructure; Mechanical properties
dc.titleMicrostructure and Mechanical Properties of Laser Welded Ti–10V–2Fe–3Al (Ti1023) Titanium Alloyen_NZ
dc.typeJournal Article
pubs.elements-id380761
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Design & Creative Technologies
pubs.organisational-data/AUT/Design & Creative Technologies/Engineering, Computer & Mathematical Sciences
pubs.organisational-data/AUT/PBRF
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies/PBRF ECMS
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