Mechanism of Texture Evolution during Primary Recrystallisation and Grain Growth in a Zr-2Hf Alloy

K. Zhu; Brigitte Bacroix; Thierry Chauveau; D. Chaubet; Olivier Castelnau

doi:10.4028/www.scientific.net/MSF.550.545

Paper Titles

Deformation Structure and Texture Transformations in Twinned Fcc Metals: Critical Role of Micro- and Macro- Scale Shear Bands
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The Effects of Hot Band Annealing Temperature on the Texture of 2%Si Nonoriented Electrical Steel
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Texture Evolution during Recrystallization in Nonoriented Electrical Steels
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A Study of Texture Evolution during Deformation and Annealing in Fe 3 wt.-% Si by Orientation Contrast Microscopy
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Mechanism of Texture Evolution during Primary Recrystallisation and Grain Growth in a Zr-2Hf Alloy
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Texture Evolution in Invar^® Deformed by Asymmetrical Rolling
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Texture Evolution of Tertiary Oxide Scale during Steel Plate Finishing Hot Rolling Simulation Tests
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A Model for Multi Peak Dynamic Recrystallization in Copper
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Modelling Deformation Structures in Metals Based on an Entropic Analysis
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Mechanism of Texture Evolution during Primary Recrystallisation and Grain Growth in a Zr-2Hf Alloy

Abstract:

The evolution of crystallographic texture in a Zr-2Hf alloy has been investigated during deformation, primary recrystallisation and normal grain growth. The as-deformed states (50-90% deformation) are characterized by a major tilted {0001}<1010> texture component and this component is reinforced with increasing deformation. A decrease in the intensity of the tilted {0001}<10 10> component and a continuous increase in the intensity of the tilted {0001}<1120 > component take place during primary recrystallisation. Normal grain growth is associated with the coarsening of grains with the {0001}<1120 > orientation. This texture evolution is interpreted on the basis of the evaluation of the stored energy and the consideration of specific grain boundaries with low energy and/or high mobility.