In Situ Observation on the Influence of ß Grain Growth on Texture Evolution during Phase Transformation in Ti-6A-4V

Gideon C. Obasi; R.J. Moat; D. G. Leo Prakash; W. Kockelmann; Joao Quinta da Fonseca; Michael Preuss

doi:10.4028/www.scientific.net/MSF.702-703.854

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HomeMaterials Science ForumMaterials Science Forum Vols. 702-703In Situ Observation on the Influence of ß Grain...

In Situ Observation on the Influence of ß Grain Growth on Texture Evolution during Phase Transformation in Ti-6A-4V

Abstract:

In the present study, in situ phase transformation experiments have been carried out using neutron diffraction to monitor the texture evolution during the α→ß→α phase transformation in Ti-6Al-4V with and without 0.4% yttrium additions. The aim of adding yttrium was to control ß grain growth above the transus ß by grain boundary pinning. In the present case, strengthening of the ß texture, occurring during ß grain coarsening resulted in strengthening of particular ß texture components, which increases the likelihood of α texture modification by selective growth of α variants on the common (110) ß grain boundaries into unoccupied large β grains.

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Periodical:

Materials Science Forum (Volumes 702-703)

Pages:

854-857

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.702-703.854

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Online since:

December 2011

Authors:

Gideon C. Obasi, R.J. Moat, D. G. Leo Prakash, W. Kockelmann, Joao Quinta da Fonseca, Michael Preuss

Keywords:

Texture Evolution, Ti6Al4V, β Grain Growth

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References

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