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arXiv · 1802.05827

Single-Track Melt-Pool Measurements and Microstructures in Inconel 625

Supriyo Ghosh·Li Ma·Lyle E. Levine·Richard E. Ricker·Mark. R. Stoudt·Jarred C. Heigel·Jonathan E. Guyer
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Abstract

We use single track laser melting experiments and simulations on Inconel 625 to estimate the dimensions and microstructures of the resulting melt pools. Our work is based on a design-of-experiments approach which uses multiple laser power and scan speed combinations. Single track experiments generate melt pools of certain dimensions. These dimensions reasonably agree with our finite element calculations. Phase-field simulations predict the size and segregation of the cellular microstructures that form along the melt pool boundaries for the solidification conditions that change as a function of melt pool dimensions.

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Supriyo Ghosh, Li Ma, Lyle E. Levine, Richard E. Ricker, Mark. R. Stoudt, Jarred C. Heigel, Jonathan E. Guyer. 2018-02-16. Single-Track Melt-Pool Measurements and Microstructures in Inconel 625. https://doi.org/10.1007/s11837-018-2771-x

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