Martensitic transformation in Mn-Ni-Sn alloys

摘要

In this work, we analyze two Mn_(50)Ni_(50-x)Sn_x alloys with Sn content i.e., x = 5 and 7.5 respectively. These alloys are produced as ribbon-shape by melt spinning. Their structural transformation is checked by calorimetry. Martensitic transformation temperatures of these alloys strongly depend on the composition. From X-ray diffraction analysis, the 14M monoclinic phase is the main phase in both alloys, but in the alloy Sn_5 appears a minor tetragonal phase too.