Abstract
An alloy cellular automaton (CA) model is developed for the microstructure simulation in directional solidification and laser solid forming (LSF) process. The CA model’s capture rule was modified by a limited neighbor solid fraction (LNSF) method. A multiscale two-dimensional model is presented for simulating laser remelting process, which is the same as LSF without the addition of metallic powders into melt pool. The metallurgy process in melt pool was simulated, including temperature distribution, pool shape and solidification of microstructure. The microstructure evolution of tungsten– nickel alloy (W–Ni) during LSF is also simulated by present CA model.
Original language | English |
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Article number | 1750016 |
Journal | Journal of Micromechanics and Molecular Physics |
Volume | 2 |
Issue number | 4 |
DOIs | |
State | Published - Dec 2017 |
Keywords
- Cellular automaton (CA)
- Laser solid forming
- W–Ni alloy