Abstract

Kanzaki force induced by substitutional solutes was introduced as a composition-dependent oscillating defect field in the Ginzburg–Landau model to simulate the pre-transition structure preceding the β-to-ω phase transformation. A three-dimensional (3-D) modulated incommensurate structure of the ω phase composed of alternating ω and β phases was predicted to be present in the moderately concentrated Zr-Nb alloys. The modeling work suggests that the Kanzaki force acts as a resistance that generates and retains the incommensurate structure of the ω phase.

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