Observation of the two-way shape memory effect in an atomistic model of martensitic transformation

 

Autores
Jagla, Eduardo Alberto
Tipo de recurso
artículo
Estado
Versión publicada
Año de publicación
2017
País
Argentina
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio
CONICET Digital (CONICET)
Descripción
We study a system of classical particles in two dimensions interacting through an isotropic pair potential that displays a martensitic phase transition between a triangular and a rhomboidal structure upon the change of a single parameter. It has been previously shown that this potential is able to reproduce the shape memory effect and super-elasticity, among other well-known features of the phenomenology of martensites. Here, we extend those previous studies and describe the development of the more subtle two-way shape memory effect. We show that in a poly-crystalline sample, the effect is mostly due to the existence of retained martensite within the austenite phase. We also study the case of a single crystal sample where the effect is associated to particular orientations of the dislocations, either induced by training or by an ad hoc construction of a starting sample.
Idioma
inglés
OAI Identifier
oai:ri.conicet.gov.ar:11336/57863
Enlace del recurso
http://hdl.handle.net/11336/57863
Nivel de acceso
Acceso abierto
Materia
MARTENSITAS
Astronomía
Ciencias Físicas
CIENCIAS NATURALES Y EXACTAS