Superplastic deformation of strongly textured Ti-6 Al-4 V |
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Authors: | D S McDarmaid A W Bowen P G Partridge |
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Affiliation: | (1) Materials and Structures Department, Royal Aircraft Establishment, Farnborough, Hants, UK |
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Abstract: | Stress and strain anisotropy of a strongly textured Ti-6 Al-4 V alloy bar during superplastic deformation at 880 and 928° C has been investigated. After 0.9 superplastic strain at 928° C the deformation tended to become isotropic. The anisotropic superplastic deformation was found to be dependent upon the aligned microstructure and not influenced by the original -phase crystallographic texture. The room-temperature anisotropy before and after superplastic plastic deformation was controlled by the original -phase texture, which was still present even after 1.48 strain (344% elongation) at 928° C. |
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