On the Model of Solid State Joint Formation under Superplastic Forming Conditions

The peculiarities of solid state joint (SSJ) formation under conditions of superplastic forming (SPF) were investigated for the titanium alloy VT6S (ti-6Al-4V). The influence of annealing and SPF on the change of state of the alloy surface was considered. A significant role of grain boundary sliding...

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Bibliographic Details
Published in:Journal of materials engineering and performance 1999-04, Vol.8 (2), p.205-210
Main Authors: Kaibyshev, O A, Safiullin, R V, Lutfullin, R Y, Astanin, V V
Format: Article
Language:English
Subjects:
Annealing
Deformation
Grain boundary sliding
Materials engineering
Solid state
Superplastic forming
Titanium base alloys
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Summary:The peculiarities of solid state joint (SSJ) formation under conditions of superplastic forming (SPF) were investigated for the titanium alloy VT6S (ti-6Al-4V). The influence of annealing and SPF on the change of state of the alloy surface was considered. A significant role of grain boundary sliding (GBS) in the formation of both surface microrelief and SSJ was established. It was shown that SSJ formation under SPF conditions is primarily a deformation process. Corresponding schemes of the appearance of surface microrelief and SSJ formation are proposed.
ISSN:1059-9495
1544-1024
DOI:10.1361/105994999770347052