Archives of Metallurgy and Materials · 2011 · 81 citations · 2 references
Natural SciencesMaterials EngineeringMaterials ScienceMetallurgyPhase TransformationsThermodynamicsAlloysKinetics Of Phase TransformationsMartensitic TransformationsPhase ChangePhase TransitionsTransformation MechanismsBeta Titanium AlloysCoolingMartensitic Phase TransformationMartensitic Transformation KineticsPhase FormationTransformation Kinetics
The Kinetics of Phase Transformations During Continuous Cooling of the Ti6Al4V Alloy from the Single-Phase β Range The paper reports on a study of the kinetics of phase transformations during continuous cooling of the alpha-beta Ti6Al4V titanium alloy from the β range. After cooling from 1020°C at a rate higher than critical the martensitic β ← α' transformation occurred. At rates lower than critical in addition to the martensitic reaction also the diffusional β ← α transformation took place. Metallographic examination of samples cooled at various rates within the range of diffusional transformations, revealed variations in the α phase morphology changing from lamellar, after cooling at between 7.3 and 0.015°C/s, to granular, as observed after cooling at 0.012°C/s. The phase transformations were also clearly seen in dilatometric curves.
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