Abstract
The present work describes the phase transformation textures of three alloys, namely Ti-8Nb, Ti-12Nb, and Ti-16Nb after β and α + β solution treatments with different cooling rates. The strong, moderate, and weak variant selections have been observed depending on the alloy compositions and cooling rates. The β solution treated and water quenched (STWQ) specimens always exhibit a higher overall intensity than those of β solution treated and furnace cooled (STFC) specimens. This has been attributed to the presence of β phase, which has inhibited the growth of selected variants during cooling. The evidence of texture memory has also been observed after α → β→ α and α″ → β → α″ transformations. A combined effect of α p, β, and ω phases has introduced different textures after α+β heat treatment than those of β heat-treated specimens. Extent of anisotropy in pole figures is more in water quenched (WQ) than those of furnace cooling (FC) specimens due to the development of equivalent orientations of individual crystallites during slow cooling.
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