A short review on the effect of Cr on the fcc-hcp phase transition in Fe-Mn-based alloys

The effect of Cr on the fcc–hcp martensitic transformation in the Fe–Mn–Cr system has been discussed considering different aspects: (a) the relative phase stabilities, (b) the magnetic order of the fcc phase, (c) the structural parameters and volume change between fcc and hcp, (d) the driving force...

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Detalles Bibliográficos
Autores: Guerrero, L.M., La Roca, Paulo Matías, Malamud, M.F., Baruj, A., Sade, M.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/43866
Acceso en línea:https://hdl.handle.net/2454/43866
Access Level:acceso abierto
Palabra clave:Fe-Mn-Cr
Martensitic transitions
Fcc-hcp transformation
Shape memory alloys
Cycling behavior
Driving forces
Volume change
Descripción
Sumario:The effect of Cr on the fcc–hcp martensitic transformation in the Fe–Mn–Cr system has been discussed considering different aspects: (a) the relative phase stabilities, (b) the magnetic order of the fcc phase, (c) the structural parameters and volume change between fcc and hcp, (d) the driving force of the martensitic transformation and relevant thermodynamics quantities, (e) the thermal cycling behavior, and (f) the pseudoelastic effect. Particularly, in this work it has been found that when Cr content increases, the effect of cycling on the energy barrier decreases. This may be explained by a small volume change, which could lead to a slighter introduction of plastic deformation during thermal cycling through the martensitic transition.