Metal powder absorptivity: Modeling and experiment

Boley, C. D.; Mitchell, S. C.; Rubenchik, A. M.; Wu, S. S. Q.

doi:10.1364/AO.55.006496

Title: Metal powder absorptivity: Modeling and experiment

Journal Article · Wed Aug 10 00:00:00 EDT 2016 · Applied Optics

DOI:https://doi.org/10.1364/AO.55.006496· OSTI ID:1342030

Boley, C. D. ^[1]; Mitchell, S. C. ^[1]; Rubenchik, A. M. ^[1]; Wu, S. S. Q. ^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Here, we present results of numerical modeling and direct calorimetric measurements of the powder absorptivity for a number of metals. The modeling results generally correlate well with experiment. We show that the powder absorptivity is determined, to a great extent, by the absorptivity of a flat surface at normal incidence. Our results allow the prediction of the powder absorptivity from normal flat-surface absorptivity measurements.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-07NA27344; 15-ERD-037

OSTI ID:: 1342030

Alternate ID(s):: OSTI ID: 1286297

Report Number(s):: LLNL-JRNL-682544; APOPAI

Journal Information:: Applied Optics, Vol. 55, Issue 23; ISSN 0003-6935

Publisher:: Optical Society of America (OSA)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 88 works

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Machine‐Learning‐Based Monitoring of Laser Powder Bed Fusion Yuan, Bodi; Guss, Gabriel M.; Wilson, Aaron C. Advanced Materials Technologies, Vol. 3, Issue 12 https://doi.org/10.1002/admt.201800136	journal	August 2018
The Formation of Humps and Ripples During Selective Laser Melting of 316l Stainless Steel Tang, Pingmei; Wang, Sen; Duan, Huamei JOM, Vol. 72, Issue 3 https://doi.org/10.1007/s11837-019-03987-7	journal	January 2020
The Effect of Powder Characteristics on Build Quality of High-Purity Tungsten Produced via Laser Powder Bed Fusion (LPBF) Field, A. C.; Carter, L. N.; Adkins, N. J. E. Metallurgical and Materials Transactions A, Vol. 51, Issue 3 https://doi.org/10.1007/s11661-019-05601-6	journal	January 2020
Resonance excitation of surface capillary waves to enhance material removal for laser material processing Ly, Sonny; Guss, Gabe; Rubenchik, Alexander M. Scientific Reports, Vol. 9, Issue 1 https://doi.org/10.1038/s41598-019-44577-6	journal	May 2019
A review of computational modeling in powder-based additive manufacturing for metallic part qualification Liu, Jingfu; Jalalahmadi, Behrooz; Guo, Y. B. Rapid Prototyping Journal, Vol. 24, Issue 8 https://doi.org/10.1108/rpj-04-2017-0058	journal	November 2018
Energy Coupling Mechanisms and Scaling Behavior Associated with Laser Powder Bed Fusion Additive Manufacturing Ye, Jianchao; Khairallah, Saad A.; Rubenchik, Alexander M. Advanced Engineering Materials, Vol. 21, Issue 7 https://doi.org/10.1002/adem.201900185	journal	April 2019
Thermo-mechanical simulations of selective laser melting for AlSi10Mg alloy to predict the part-scale deformations Soylemez, Emrecan; Koç, Ebubekir; Coşkun, Mert Progress in Additive Manufacturing, Vol. 4, Issue 4 https://doi.org/10.1007/s40964-019-00096-4	journal	September 2019

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