Investigation determines electrical conductivity and microhardness in Heusler alloy, suggesting important material characteristics.
Fe-Mn-Ti-Sn alloy is a Heusler-type shape memory alloy; however, studiesfocusing on its electrical conductivity and microhardness are limited. In the study, FeMn-Ti-Sn Heusler [Fe2-xMnxTiSn (0≤x≤2)] alloy was selected Fe2TiSn,Fe1.5Mn0.5TiSn, FeMnTiSn, Fe0.5Mn1.5TiSn, Mn2TiSn components were obtainedin these ratios for the first time using arc melter melting furnace. Temperaturedependent electrical measurements of the obtained samples were determined by fourpoint probe method (FPPT). The electrical resistance values of the samples at 330Kwere obtained as 0.14-2.25x10-6 ( m) and 0.02-0.49 x10-6 ( m) at 750 K. In addition,the temperature coefficient of electrical resistivity value was calculated as (0.03-1.29)x (10-3 K-1). Phases belonging to each composition were determined byexamining the XRD peaks. Microstructures of the samples were obtained by SEM,EDX and MAPPING images. Finally, the composition-dependent microhardnessmeasurements of the samples were determined by using the Vickers hardness test. Theaverage microhardness values obtained were measured as 481-716 HV0.5
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Saatçi et al. (2025) studied this question.
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