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

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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Veröffentlicht in:Journal of Materials Engineering and Performance 1999-04, Vol.8 (2), p.205-210
Hauptverfasser: Kaibyshev, O A, Safiullin, R V, Lutfullin, R Y, Astanin, V V
Format: Artikel
Sprache:eng
Schlagworte:
ANNEALING
DEFORMATION
DIFFUSION WELDING
GRAIN BOUNDARIES
Grain boundary sliding
INTERFACES
KINETICS
Materials engineering
MATERIALS SCIENCE
PLASTICITY
Solid state
Superplastic forming
SURFACES
TITANIUM BASE ALLOYS
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Beschreibung
Zusammenfassung: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