Effects of Co Additions on the Martensitic Transformation and Magnetic Properties of Ni–Mn–Sn Shape Memory Alloys

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Bachagha, Tarek
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Daly, Rakia
orcId Suñol Martínez, Joan Josep​ researcherId Suñol Martínez, Joan Josep​ scopusId Suñol Martínez, Joan Josep​ ​
Suñol Martínez, Joan Josep
orcId Saurina Canals, Joan​ ​ scopusId Saurina Canals, Joan​ ​
Saurina Canals, Joan
orcId Escoda i Acero, Ma. Lluïsa​ ​ scopusId Escoda i Acero, Ma. Lluïsa​ ​
Escoda i Acero, Ma. Lluïsa
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Legarreta, L.G.
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Hernando, Blanca
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Khitouni, Mohamed
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In this work, ribbons of composition Ni50−x CoxMn38Sn12 (x = 1, 2, and 3 at%.) were produced by the melt-spinning technique. Martensitic transformation shifts to lower temperatures with increasing (a) concentration of Co or (b) the external magnetic field. Structure at room temperature of alloys with x = 1 and x = 2 is martensite (monoclinic with a 10 M modulation), whereas for the alloy with x = 3 is austenitic. The temperature shift directly reports the valence electrons concentration per atom e/a of alloys. ​
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