Effect of the Boron Addition on the Structure of the Ni-Mn-Co-In Alloys
K. Prusik a, E. Matyja a, M. Zubko a, M. Kubisztal a and A. Chrobak b
aUniversity of Silesia, Institute of Material Science, Bankowa 12, 40-007 Katowice, Poland
bUniversity of Silesia, Institute of Physics, Uniwersytecka 4, 40-007 Katowice, Poland
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Series of Ni45.5-xCo4.5Mn36.6In13.4Bx (at.%, x=0, 0.05, 0.1, 0.5, 1.0) polycrystalline magnetic shape memory alloys produced by the induction melting were examined in terms of the structure and transition temperatures. The structure of the alloys was determined by the X-ray diffraction and transmission electron microscopy. Scanning electron microscopy and electron backscattering diffraction techniques were applied to obtain the microstructure and texture of alloys. Boron addition promotes nucleation of the second Co-rich and In-poor phase as well as causes decrease of the martensitic transformation temperatures.

DOI: 10.12693/APhysPolA.130.1023
PACS numbers: 71.20.Lp, 71.20.Be