Investigation of Sinter Braze Ferrous Powder Metallurgy to Wrought Substrates by Ancorbraze 72 Filler Metal Alloy

Abstract

Abstract Brazing processes were carried out using a Ancorbraze 72 and BAg8 fillers alloy, and furnace with Argon gas, characterization of the final joint is supported with optical microscopy, SEM, EDS and Hardness tests. This research is focused on the two steps, the first step is preparing the samples from powder metallurgy of pure Fe, Ni and Fe, Ni alloys. Second step, brazing these samples. Finally, experimental illustrated that BAg8 filler metal was not suitable for protact brazing due to its narrow melting range while protact brazing was suitable for Ancorbraze 72. The Ancobraze filler metal alloy contains boron, silicon elements make affinity for iron and nickel to make joint. It seem that the iron base metal joint more affinity to make a joint with respect to the selected filler metal (nickel, copper, manganic, silicon and boron). This positive effect was obtained due to the effect of Ancorbraze 72 filler metal elements and the distribution of these elements in the joined powder matallurage (P/M) samples after brazing processes.