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Keyhole formation and thermal fluid flow-induced porosity during laser fusion welding in titanium alloys: Experimental and modelling

Abstract:

High energy-density beam welding, such as electron beam or laser welding, has found a number of industrial applications for clean, high-integrity welds. The deeply penetrating nature of the joints is enabled by the formation of metal vapour which creates a narrow fusion zone known as a “keyhole”. However the formation of the keyhole and the associated keyhole dynamics, when using a moving laser heat source, requires further research as they are not fully understood. Porosity, which is one of ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1016/j.actamat.2016.12.062

Authors


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Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
ORCID:
0000-0003-2141-5865
Perumal, B More by this author
Turner, RP More by this author
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Rolls-Royce plc. More from this funder
Manufacturing Technology Centre More from this funder
University of Birmingham More from this funder
European Regional Development Fund More from this funder
Publisher:
Elsevier Publisher's website
Journal:
Acta Materialia Journal website
Volume:
126
Pages:
251-263
Publication date:
2016-12-28
Acceptance date:
2016-12-26
DOI:
EISSN:
1873-2453
ISSN:
1359-6454
Pubs id:
pubs:863791
URN:
uri:1b904598-c102-42a5-bf73-e7414b45f832
UUID:
uuid:1b904598-c102-42a5-bf73-e7414b45f832
Local pid:
pubs:863791

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