Influence of Fe Addition on the Martensitic Transformation, Structure and Magnetic Properties of Metamagnetic Ni-Co-Mn-Sn Alloys
A. Wójcik a, W. Maziarz a, M.J. Szczerba a, M. Sikora b, Ł. Hawełek c and P. Czaja a
aInstitute of Metallurgy and Materials Science, Polish Academy of Sciences, W.S. Reymonta 25, 30-059 Krakow, Polska
bAcademic Centre for Materials and Nanotechnology, AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Krakow, Polska
cInstitute of Non-Ferrous Metals, J. Sowińskiego 5, 44-100 Gliwice, Polska
Full Text PDF
In this study the effect of Fe for Ni substitution in Ni44Co6Mn39Sn11 metamagnetic shape memory alloys on their structure, magneto-structural transformation characteristics, magnetic and magnetocaloric properties was studied. The results show that the structure and martensite transformation behavior strongly depends on the Fe concentration. The martensitic transformation temperature decreases with 1 at.% of Fe and is suppressed with higher Fe content. It was further found that substitution of Fe for Ni leads to lowering of the value of magnetic entropy change.

DOI: 10.12693/APhysPolA.130.1026
PACS numbers: 75.30.Sg, 81.30.Kf