Universitat de Girona
Ministerio de Economía y Competitividad (Espanya)
Generalitat de Catalunya. Agència de Gestió d'Ajuts Universitaris i de Recerca
2015-06
Thermal and structural austenite to martensite reversible transition was studied in melt spun ribbons of Ni50Mn40Sn5Co5, Ni50Mn37.5Sn7.5Co5 and Ni50Mn35Sn10Co5 (at. %) alloys. Analysis of X-ray diffraction patterns confirms that all alloys have martensitic structure at room temperature: four layered orthorhombic 4O for Ni50Mn40Sn5Co5, four layered orthorhombic 4O and seven-layered monoclinic 14M for Ni50Mn37.5Sn7.5Co5 and seven-layered monoclinic 14M for Ni50Mn35Sn5Co5. Analysis of differential scanning calorimetry scans shows that higher enthalpy and entropy changes are obtained for alloy Ni50Mn37.5Sn7.5Co5, whereas transition temperatures increases as increasing valence electron density
This research was supported by the projects MAT2013-47231-C2-2-P and 2014SGR1180
Article
Published version
English
Aliatges amb memòria de forma; Shape memory alloys; Anàlisi tèrmica; Thermal analysis; Transformacions martensítiques; Martensitic transformations; Aliatges; Alloys; Aliatges amb memòria de forma; Shape memory alloys; Metalls -- Aliatges; Metals -- Alloys
MDPI (Multidisciplinary Digital Publishing Institute)
info:eu-repo/semantics/altIdentifier/doi/10.3390/met5020695
info:eu-repo/semantics/altIdentifier/eissn/2075-4701
info:eu-repo/grantAgreement/MINECO//MAT2013-47231-C2-2-P/ES/NUEVOS MATERIALES (MICRO-NANO ESTRUCTURADOS) PARA DISPOSITIVOS DE EXTRACCION Y CESION DE CALOR, ACTUADORES, SENSORES Y MEMORIAS MAGNETICAS/
AGAUR/2014-2016/2014 SGR-1180
Attribution 4.0 Spain
http://creativecommons.org/licenses/by/4.0/es/
