STUDY THE MATERIALS AND MECHANICAL PROPERTIES OF NI-25% WT TA ALLOY

Nickel and Tantalum alloys have a wide range of capabilities biomedical applications due to its high degree of biocompatibility, Favorable mechanical properties and high corrosion resistance The possibility of Osseointegration. In this study, all the alloys were prepared by powder metallurgy Then the alloying element (indium as a binder with different structural composition) in different groups (0.6, 0.7, and 0.8 wt.%) to the main alloy (75 wt.% Ni-25wt% Ta) for to study the effect of these elements on microstructure characterization (XRD, SEM, EDS, XRF and light optical microscopy) and mechanical properties (compression, hardness, Wet sliding corrosion tests) for this alloy. The compact pressure was determined as 800MPa and the green alloyed sintered at 700 oC for 5h in inert gas (Argon), then the samples cooled in the furnace.