A New Mechanism for the Alpha to Omega Martensitic Transformation in Pure Titanium

Abstract

We propose a new direct mechanism for the pressure driven alpha to omega martensitic transformation in pure titanium. A systematic algorithm enumerates all possible mechanisms whose energy barriers are evaluated. A new, homogeneous mechanism emerges with a barrier at least four times lower than other mechanisms. This mechanism remains favorable in a simple nucleation model.

4 pages, 4 figures

References in corpus (2)

• Applications of a tight-binding total energy method for transition and noble metals: Elastic Constants, Vacancies, and Surfaces of Monatomic Metals
• Tight-binding study of high-pressure phase transitions in titanium: alpha to omega and beyond

Cited by in corpus (17)

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• Development of an Interatomic Potential for the Simulation of Defects, Plasticity and Phase Transformations in Titanium
• An Empirical Tight-Binding Model for Titanium Phase Transformations
• Systematic pathway generation and sorting in martensitic transformations: Titanium alpha to omega
• Thermal Stabilization of the HCP Phase in Titanium
• Stability of the $\omega$ structure of transition elements
• Defects from phonons: Atomic transport by concerted motion in simple crystalline metals
• Simulations of x-ray diffraction from uniaxially-compressed highly-textured polycrystalline targets
• Predicting kinetics of polymorphic transformations from structure mapping and coordination analysis
• Titanium $\alpha -\omega$ phase transformation pathway and a predicted metastable structure
• Structure and growth of titanium buffer layers on Al2O3(0001)
• Isothermal Annealing of Shocked Zirconium: Stability of the Two-phase $\alpha /\omega$ Microstructure
• Phase Transitions in High Purity Zr Under Dynamic Compression
• Effect of pressure on the electronic structure of hcp Titanium
• Twin-Boundary Structural Phase Transitions in Elemental Titanium