MECHANICAL PROPERTIES OF POWDER CoCrW-ALLOY PREPARED BY AM TECHNOLOGY

Abstract

This study is focused on the evaluation of mechanical properties and microstructure of fabricating Ni-free CoCrWalloy. Samples were prepared by additive manufacturing technology – selective laser melting. The chemical composition of used metal powder was – 60.5% Co, 28% Cr and 9%W. Parameters of SLM were given by powder supplier. The shape of thesampleis designed according to MPIF. After recommended heat treatment, the static tensile test was carried out at Tinius Olsen machine, the microstructure and porositywere observed, also. In results is interpreted the relations between porosity, microstructure, and mechanical properties. This report is the basis for further experiments aimed at improving the mechanical properties about manufacturing conditions.

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