TY - JOUR N2 - Wire and laser additive manufacturing (WLAM) can produce outstanding mechanical properties of GH3039 nickel-based superalloys. A quantitative rapid phase field model with solute trapping kinetics has been developed during the rapid solidification process, where a range of process conditions are considered in terms of thermal gradients and pulling speeds. Intergranular hot cracking is found to occur at boundaries of tilted columnar dendrite in the GH3039 nickel-based superalloys. The simulations demonstrate that the phase field model considering the interface deflection can represent the dendrite growth during additive manufacturing more realistically. With the aid of numerical simulations, it is determined that dendrite growth morphologies transform from symmetrical columnar dendrite to tilted columnar dendrite as the interface crystallographic deflection is increased, while increasing the deflection angle can lead to uneven composition of material matrix, especially at the columnar dendrite interface. Solute concentrations at the columnar dendrite interface tend to promote hot cracking in additively manufactured Ni-based superalloy. L1 - http://journals.pan.pl/Content/126298/PDF/AMM-2023-1-51-Nanfu%20Zong.pdf L2 - http://journals.pan.pl/Content/126298 PY - 2023 IS - No 1 EP - 393 DO - 10.24425/amm.2023.143673 KW - Wire and laser additive manufacturing KW - phase field simulation KW - solute concentration KW - interface crystallographic deflection KW - columnar dendrite A1 - Zong, Nanfu A1 - Wang, Zheng A1 - Liu, Yang A1 - Liang, Xinghong A1 - Jing, Tao PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 68 DA - 2023.03.06 T1 - Columnar Dendrite Morphology and Solute Concentration of GH3039 Nickel-Based Superalloys during Wire and Laser Additive Manufacturing: Insights from Phase Field Simulations SP - 387 UR - http://journals.pan.pl/dlibra/publication/edition/126298 T2 - Archives of Metallurgy and Materials ER -