Artículo
Diffusive phenomena and pseudoelasticity in Cu-Al-Be single crystals
Sade Lichtmann, Marcos Leonel
; Pelegrina, Jorge Luis
; Yawny, Alejandro Andres
; Lovey, Francisco Carlos
Fecha de publicación:
02/2015
Editorial:
Elsevier Science Sa
Revista:
Journal of Alloys and Compounds
ISSN:
0925-8388
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Cu-Al-Be single crystals show pseudoelasticity and the shape memory effect in a well-defined composition range. The β3-18R martensitic transition is the origin of these phenomena. The transformation temperatures and the critical stresses to induce the martensitic transition are affected by diffusive phenomena taking place both in the parent phase and in martensite. Pseudoelastic cycles were used to obtain quantitative data concerning the effect of diffusive phenomena like stabilization of martensite, ordering of the parent phase under load and recovery of this phase on the critical stresses to transform. Information was then obtained on changes in the relative phase stability. A model is presented to explain those changes taking place in the parent phase aged under load and in the martensitic 18R structure. Experimental data on the kinetics of diffusive phenomena is also presented and analyzed.
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Sade Lichtmann, Marcos Leonel; Pelegrina, Jorge Luis; Yawny, Alejandro Andres; Lovey, Francisco Carlos; Diffusive phenomena and pseudoelasticity in Cu-Al-Be single crystals; Elsevier Science Sa; Journal of Alloys and Compounds; 622; 2-2015; 309-317
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