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.
@article{arxiv.1802.05827,
title = {Single-Track Melt-Pool Measurements and Microstructures in Inconel 625},
author = {Supriyo Ghosh and Li Ma and Lyle E. Levine and Richard E. Ricker and Mark. R. Stoudt and Jarred C. Heigel and Jonathan E. Guyer},
journal= {arXiv preprint arXiv:1802.05827},
year = {2018}
}
Comments
Accepted for publication in JOM on February 2, 2018