%0 journal article
%@ 1362-1718
%A Rodrigues, T.A., Cipriano Farias, F.W., Avila, J.A., Maawad, E., Schell, N., Santos, T.G., Oliveira, J.P.

%D 2023
%J Science and Technology of Welding and Joining
%N 7
%P 534-539 
%R doi:10.1080/13621718.2023.2187927
%T Effect of heat treatments on Inconel 625 fabricated by wire and arc additive manufacturing: an in-situ synchrotron x-ray diffraction analysis
%U https://doi.org/10.1080/13621718.2023.2187927
7 
%X The effect of heat treatments on wire and arc additively manufactured Inconel 625 parts was investigated using in situ synchrotron X-ray diffraction and hardness testing. As-built samples revealed the presence of a γ-matrix with precipitation of γ′, γ′′ and MC carbides. When heat treated at 750°C for 4 h, γ′′ phase precipitated increasing the hardness by 5%. In situ X-ray observations revealed that heat treating at 870°C for 1 h resulted in δ-phase precipitation. Two different second-stage temperatures were tested (1050°C and 1150°C), which dissolved the δ-phase while MC carbides formed upon cooling. The second stage at 1150°C had a higher deleterious effect than the one performed at 1050°C due to extensive grain growth.