Formation of Nb-rich droplets in laser deposited Ni-matrix microstructures

20 Nov 2017 Ghosh Supriyo Stoudt Mark R. Levine Lyle E. Guyer Jonathan E.

Ni-rich $\gamma$ cells and Nb-rich eutectic droplets that form during laser power bed fusion solidification of Ni-Nb alloys are studied using experiments and simulations. Finite element simulations estimate the cooling rates in the melt pool and phase-field simulations predict the resulting cellular microstructures... (read more)

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