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Bertrand, E., Castany, P., Yang, Y., Menou, E. & Gloriant, T. (2016) Deformation twinning in the full-alpha '' martensitic Ti-25Ta-20Nb shape memory alloy. Acta Mater. 105 94–103. 
Added by: Laurent Cournède (2016-03-10 18:36:43)
Type de référence: Article
DOI: 10.1016/j.actamat.2015.12.001
Numéro d'identification (ISBN etc.): 1359-6454
Clé BibTeX: Bertrand2016
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Catégories: ID2M
Mots-clés: alpha '' martensite, beta-titanium alloy, ebsd, mechanical-behavior, microstructure, nb alloy, Shape memory alloy, superelastic ti-24nb-4zr-8sn alloy, ti-24nb-0.5n, ti-alloys, titanium, transformation, Twinning, x-ray-diffraction
Créateurs: Bertrand, Castany, Gloriant, Menou, Yang
Collection: Acta Mater.
Consultations : 20/777
Indice de consultation : 4%
Indice de popularité : 1%
Résumé     
Deformation twinning of the Ti-25Ta-20Nb (mass\%) shape memory alloy is characterized using EBSD and TEM. The selfaccommodating alpha '' microstructure is shown to be first deformed using (111)(alpha '') type I and {<} 211 {>}(alpha '') type II reorientation twinning. Plastic deformation occurs further by plastic twinning with a new \{130\}{<} 310 {>}(alpha '') twinning system. Maximum lattice deformation calculation is a relevant parameter to predict the variant of martensite that is favored during the reorientation process. Conversely, Schmid factor analysis can be used to predict the selection of \{130\}{<} 310 {>}(alpha '') twinning variants during deformation. Analogy between \{\vphantom{\}}130){<} 310 {>}(alpha '') and (332){<} 113 {>}(beta) twinning systems is highlighted. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Added by: Laurent Cournède  
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