Elsevier

Scripta Materialia

Volume 124, November 2016, Pages 151-154
Scripta Materialia

Regular Article
Formation of equiaxed α during ageing in a severely deformed metastable β Ti alloy

https://doi.org/10.1016/j.scriptamat.2016.07.012Get rights and content

Abstract

Careful TEM examination has confirmed the formation of equiaxed α in nanocrystalline β during ageing of a severely deformed metastable β Ti alloy. It is revealed that the Burgers orientation relationship is obeyed upon α nucleation, but grain growth has led to the eventual incoherent α/β interfaces. In addition, intragranular acicular α would form when the β grains prior to ageing are much coarser than ~ 10 nm.

Section snippets

Acknowledgement

This investigation is partially supported by the ARC Centre of Excellence for Design in Light Metals (CE0561574) and the Australia-China Research Centre for Light Metals (ACSRF00301: JRC11001). AZ acknowledges the receipt of a University of Melbourne postgraduate scholarship.

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