Abstract
The Ti–Fe alloys are quite important among various Ti‐based alloys doped with β‐stabilisers. Severe plastic deformation by the high pressure torsion (HPT) leads to the strong grain refinement in Ti–Fe alloys. The high‐pressure ωTi‐phase appears during HPT of the Ti–1 wt.% Fe alloy. However, the ωTi does not appear after uniaxial compression at the same pressure, without torsion. ωTi remains quenched after pressure release and disappears by heating around 140–150 °C. However, the further alloying with iron suppresses the formation of ωTi‐phase. As a result, ωTi does not appear after HPT in the Ti–10 wt.% Fe alloy.
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