Thermal, Mechanical, and Electrochemical Characterization of Ti50Ni50-XMox Alloys Obtained by Plasma Arc Melting

This study aims to manufacture and characterize titanium nickel alloys with different molybdenum (Ti–Ni–Mo) contents, focusing on the influence of these additions microstructure, mechanical properties, corrosion resistance. The relevance this work stems from lack research specific alloy absence reports in literature percentages above 2 at.%. Ti50Ni50−XMox were produced by plasma arc melting method, six compositions (x = 0, 0.5, 1, 2, 3, 4 at.% Mo), a comprehensive analysis chemical composition, thermal, mechanical, electrochemical properties was carried out. results demonstrated significant alterations microstructure Ni–Ti addition presenting several phases, precipitates (TiNi, Ti2Ni), oxides (Ti4Ni2O, TiO, TiO3). stability B2 phase increased content, monoclinic martensite (B19′) identified only sample. Introducing into generated R-phase shifted transformation peaks lower temperatures, as differential scanning calorimetry (DSC) indicated. Microhardness elastic modulus decreased increasing Mo ranging 494 HV 272 74 GPa 63 GPa, respectively. Corrosion tests revealed resistance reaching polarization 2710 kΩ·cm2 current 11.3 µA. Therefore, points Ti–Ni–Mo potential candidates increase range applications, mainly biomaterials, reinforcing its need research.