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Bignon, M., Bertrand, E., Rivera-Diaz-del-Castillo, P. E. J. & Tancret, F. (2021) Martensite formation in titanium alloys: Crystallographic and compositional effects. Journal of Alloys and Compounds, 872. 
Added by: Richard Baschera (2021-06-03 09:39:02)   Last edited by: Richard Baschera (2021-06-03 10:30:11)
Type de référence: Article
DOI: 10.1016/j.jallcom.2021.159636
Numéro d'identification (ISBN etc.): 0925-8388
Clé BibTeX: Bignon2021
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Mots-clés: Martensite, Phenomenological theory of martensitic transformation, superelasticity, titanium, Transformation induced plasticity
Créateurs: Bertrand, Bignon, Rivera-Diaz-del-Castillo, Tancret
Collection: Journal of Alloys and Compounds
Consultations : 1/224
Indice de consultation : 7%
Indice de popularité : 1.75%
An explanation is proposed to martensite inhibition beyond characteristic concentration thresholds in titanium binary alloys. The method combines the phenomenological theory of martensite crystallography (PTMC) and thermodynamic calculations (TCs) to describe the conditions under which martensite formation is favourable. It is shown that martensite can be crystallographically prevented while being thermodynamically favourable. The PTMC is implemented by taking into account the influence of composition. After a comprehensive comparison to experiments, two twinning systems and two glide systems are inferred to be able to produce the lattice invariant shear. The critical concentrations above which martensite cannot form are computed and compared to experimental results on binary and ternary systems, showing good agreement. The proposed method may be used as a guide to design titanium alloys for controlled martensitic behaviour. (c) 2021 The Author(s). Published by Elsevier B.V. CC_BY_4.0
Place: PO BOX 564, 1001 LAUSANNE, SWITZERLAND Publisher: ELSEVIER SCIENCE SA Type: Article
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