The investigation carried out on novel steel powders based on the Fe-C-Cr-Mo alloy system to be processed by Laser-Powder Bed Fusion is described. Two powder batches have been studied, considering of a gas atomized version and a variant of it, with a modified chemistry, produced by water atomization and post-treatment. The materials have been characterized after LPBF processing to highlight the as built microstructure and properties as a result of the different powder atomization processes. The results showed that the water atomized variant of the steel powder possesses good processability and performances comparable to the gas atomized alloy.
L-PBF Processing of Steel Powders Produced by Gas and Water Atomization
M. Abdelwahed;R. Casati;M. Vedani
2021-01-01
Abstract
The investigation carried out on novel steel powders based on the Fe-C-Cr-Mo alloy system to be processed by Laser-Powder Bed Fusion is described. Two powder batches have been studied, considering of a gas atomized version and a variant of it, with a modified chemistry, produced by water atomization and post-treatment. The materials have been characterized after LPBF processing to highlight the as built microstructure and properties as a result of the different powder atomization processes. The results showed that the water atomized variant of the steel powder possesses good processability and performances comparable to the gas atomized alloy.File | Dimensione | Formato | |
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