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The Magnitude and Origin of Residual Stress in Ti-6Al-4V Linear Friction Welds: An Investigation by Validated Numerical Modeling

Abstract:

The linear friction welding (LFW) process - of the type required for production of bladed discs for the next-generation aeroengines - was modeled using numerical methods developed previously. An elastic-viscoplastic material formulation was considered to allow for residual stress calculations to be included in the numerical solution. A study of the evolution of residual stress during the welding and cooling processes was made. It was evident that residual stresses arose primarily as a consequ...

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Publication status:
Published

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Publisher copy:
10.1007/s11663-011-9563-9

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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Role:
Author
Journal:
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
Volume:
43
Issue:
1
Pages:
186-197
Publication date:
2012-02-05
DOI:
EISSN:
1543-1916
ISSN:
1073-5615
URN:
uuid:44c5c6cd-6f60-4a12-a203-f499aa24ad85
Source identifiers:
369679
Local pid:
pubs:369679
Language:
English

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