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Coupled thermodynamic/kinetic model for hydrogen transport during electron beam welding of titanium alloy

Abstract:

Hydrogen transport during the welding of titanium alloy Ti-6Al-4V is analysed. A coupled thermodynamic/kinetic treatment is proposed in which the driving force for hydrogen migration is its chemical potential gradient, which is in turn calculated using the Thermo-Calc software package. The model is applied to the case of the electron beam welding of Ti-6Al-4V, for which a simple process model is presented for the temperature evolution expected. There is a thermodynamic driving force for accum...

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Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
Journal:
MATERIALS SCIENCE AND TECHNOLOGY
Volume:
28
Issue:
4
Pages:
500-508
Publication date:
2012-04-01
DOI:
EISSN:
1743-2847
ISSN:
0267-0836
Source identifiers:
369674
Language:
English
Keywords:
Pubs id:
pubs:369674
UUID:
uuid:d4546224-08f7-409e-a585-fa661e2ed995
Local pid:
pubs:369674
Deposit date:
2013-11-16

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