Prediction of Solute Element Segregation in Additive Manufactured Ni-based Superalloy using Multi-phase Field Simulation
نویسندگان
چکیده
Abstract: Solute segregation significantly affects material propert ies and is an essential issue in powder-bed fusion（PBF）type additional manufacturing（AM）of nickel-based superalloys. In the present study, we have investigated effects of solidification conditions temperature gradients rates on behavior Hastelloy-X Ni-based superalloy using multi- phase field（MPF）simulation. To evaluate liquation crack susceptibility, solidus temperatures were calculated predicted compositions segregated regions. MPF simulations revealed that segregations Mo Cr depletion Co become more remarkable with increasing cooling rate, this solute causes decrease a up to 17.7 K. PBF type AM process, metallic powders are solidified under unique condition high gradient G rate R, suggested strong cracks occur.
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ژورنال
عنوان ژورنال: Sumato Purosesu Gakkaishi
سال: 2021
ISSN: ['2186-702X', '2187-1337']
DOI: https://doi.org/10.7791/jspmee.10.214