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Open AccessFeature PaperArticle

The Average Grain Size and Grain Aspect Ratio in Metal Laser Powder Bed Fusion: Modeling and Experiment

Department of Mechanical Engineering, École de technologie supérieure, 1100 Notre-Dame Street West, Montreal, QC H3C 1K3, Canada
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J. Manuf. Mater. Process. 2020, 4(1), 25; https://doi.org/10.3390/jmmp4010025
Received: 31 January 2020 / Revised: 28 February 2020 / Accepted: 8 March 2020 / Published: 11 March 2020
The additive manufacturing (AM) process induces high uncertainty in the mechanical properties of 3D-printed parts, which represents one of the main barriers for a wider AM processes adoption. To address this problem, a new time-efficient microstructure prediction algorithm was proposed in this study for the laser powder bed fusion (LPBF) process. Based on a combination of the melt pool modeling and the design of experiment approaches, this algorithm was used to predict the microstructure (grain size/aspect ratio) of materials processed by an EOS M280 LPBF system, including Iron and IN625 alloys. This approach was successfully validated using experimental and literature data, thus demonstrating its potential efficiency for the optimization of different LPBF powders and systems. View Full-Text
Keywords: additive manufacturing; laser powder bed fusion; process optimization; analytical model; microstructure additive manufacturing; laser powder bed fusion; process optimization; analytical model; microstructure
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MDPI and ACS Style

Letenneur, M.; Kreitcberg, A.; Brailovski, V. The Average Grain Size and Grain Aspect Ratio in Metal Laser Powder Bed Fusion: Modeling and Experiment. J. Manuf. Mater. Process. 2020, 4, 25. https://doi.org/10.3390/jmmp4010025

AMA Style

Letenneur M, Kreitcberg A, Brailovski V. The Average Grain Size and Grain Aspect Ratio in Metal Laser Powder Bed Fusion: Modeling and Experiment. Journal of Manufacturing and Materials Processing. 2020; 4(1):25. https://doi.org/10.3390/jmmp4010025

Chicago/Turabian Style

Letenneur, Morgan; Kreitcberg, Alena; Brailovski, Vladimir. 2020. "The Average Grain Size and Grain Aspect Ratio in Metal Laser Powder Bed Fusion: Modeling and Experiment" J. Manuf. Mater. Process. 4, no. 1: 25. https://doi.org/10.3390/jmmp4010025

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