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Journal Articles Advanced Engineering Materials Year : 2011

A New Variant Selection Criterion for Twin Variants in Titanium Alloys (Part 1)

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Abstract

Deformation twinning is one of the main deformation modes in crystalline solids particularly in low symmetry or multiple lattice structures. [1-8] Though extensive studies have addressed on the crystallography, [9-11] morphology [12] and mechanical behavior [2,13] of deformation twins, and numerous models for twinning have been suggested over the last few decades, [14,15] some fundamental issues remain unclear. The nucleation and growth mechanism of twin lamellae, the interaction of twinning with crystal defects, and the interfacial accommodation between the matrix and twins [16,17] are still poorly understood. In the case of titanium alloys, many authors have attempted to determine the presence of the different types of twins as a function of the deformation temperature or grain size [18,19,20] as well as to extract useful information for modeling. [1,21] Although the twin type and the twin volume fraction can be easily determined, [22] the type of variants present as well as the sequence in which they appear in one grain are not well revealed. Recently, we have developed the ''interrupted in situ SEM/EBSD orientation examination method'' to follow the
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Dates and versions

hal-03864509 , version 1 (26-12-2022)

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Christophe Schuman, Lei Bao, Jean Sébastien Lecomte, Yudong Zhang, Jean Marc Raulot, et al.. A New Variant Selection Criterion for Twin Variants in Titanium Alloys (Part 1). Advanced Engineering Materials, 2011, 13 (12), pp.1114 - 1121. ⟨10.1002/adem.201100119⟩. ⟨hal-03864509⟩

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