2019 Pittsburgh AISTech

Powder Metallurgy: Sintering Process by Alloy Hot Pressing (Room 404)

Sintering is a thermodynamic process out of equilibrium and thermally activated, in which the system of particles gains a coherent solid structure. Therefore, the mechanisms of powders during the sintering process will directly impact final properties of the product. Thus, a study was carried out on the sintering process of 25%Fe-50%Cu-25%Co and 25%Fe-50%Cu-25%Nb metal alloys during hot pressing. In this way, the real and relative density, porosity and Vickers hardness were measured. After analysis it was possible to conclude, independent of the sintering parameter used, that the increase in temperature and/or pressure improves the properties and diffusivity between the elements.