Aluminum Bronze/Udimet 500 Composites Prepared by Electron-Beam Additive Double-Wire-Feed Manufacturing
Anna Zykova, A. V. Chumaevskii, A. O. Panfilov, A. V. Vorontsov, Aleksandra Nikolaeva, K. S. Osipovich, Anastasija Gusarova, V. V. Chebodaeva, S. Yu. Nikonov, D. A. Gurianov, А. В. Филиппов, Artem Dobrovolsky, Е. А. Колубаев, S. Yu. Tarasov
Abstract
Novel composite CuA19Mn2/Udimet-500 alloy walls with different content of the Udimet 500 were built using electron-beam double-wire-feed additive manufacturing. Intermixing both metals within the melted pool resulted in dissolving nickel and forcing out the aluminum from bronze. The resulting phases were NiAl particles and grains, M23C6/NiAl core/shell particles and Cu-Ni-Al solid solution. Precipitation of these phases resulted in the increased hardness and tensile strength as well as reduced ductility of the composite alloys. Such a hardening resulted in improving the wear resistance as compared to that of source aluminum bronze.