Article ID Journal Published Year Pages File Type
1500762 Scripta Materialia 2010 4 Pages PDF
Abstract

We report a significant grain size effect on the phase transformation in a Ti–36Nb–2.2Ta–3.7Zr–0.3O alloy during severe plastic deformation. For grain sizes larger than the submicrometer range, the body-centered cubic β phase transformed to hexagonal ω phase when deformed by high-pressure torsion under a relatively low pressure of 3 GPa and at room temperature. However, a reverse ω to β transformation was observed under the same deformation conditions when the grain sizes were less than 100 nm.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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