In-situ characterization of laser-powder interaction and cooling rates through high-speed imaging of powder bed fusion additive manufacturing

doi:https://doi.org/10.1016/j.matdes.2017.09.044

Title: In-situ characterization of laser-powder interaction and cooling rates through high-speed imaging of powder bed fusion additive manufacturing

Abstract

We report detailed understanding of the complex melt pool physics plays a vital role in predicting optimal processing regimes in laser powder bed fusion additive manufacturing. In this work, we use high framerate video recording of Selective Laser Melting (SLM) to provide useful insight on the laser-powder interaction and melt pool evolution of 316 L powder layers, while also serving as a novel instrument to quantify cooling rates of the melt pool. The experiment was performed using two powder types – one gas- and one water-atomized – to further clarify how morphological and chemical differences between these two feedstock materials influence the laser melting process. Finally, experimentally determined cooling rates are compared with values obtained through computer simulation, and the relationship between cooling rate and grain cell size is compared with data previously published in the literature.

Authors:

Scipioni Bertoli, Umberto ^[1]; Guss, Gabe ^[2]; Wu, Sheldon ^[2]; Matthews, Manyalibo J. ^[2]; Schoenung, Julie M. ^[1]

Univ. of California, Irvine, CA (United States). Department of Chemical Engineering and Materials Science
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Materials Science Division

Publication Date:: 2017-09-21

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1409929

Alternate Identifier(s):: OSTI ID: 1549312

Report Number(s):: LLNL-JRNL-738525
Journal ID: ISSN 0264-1275

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

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Materials & Design

Additional Journal Information:: Journal Volume: 135; Journal Issue: C; Journal ID: ISSN 0264-1275

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 42 ENGINEERING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Powder bed fusion additive manufacturing; Selective Laser Melting; 316 L stainless steel; Water atomized powder; High speed imaging; Ultra-high cooling rate

Citation Formats


                    Scipioni Bertoli, Umberto, Guss, Gabe, Wu, Sheldon, Matthews, Manyalibo J., and Schoenung, Julie M. In-situ characterization of laser-powder interaction and cooling rates through high-speed imaging of powder bed fusion additive manufacturing.  United States: N. p., 2017. 
        Web.  doi:10.1016/j.matdes.2017.09.044.

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                    Scipioni Bertoli, Umberto, Guss, Gabe, Wu, Sheldon, Matthews, Manyalibo J., & Schoenung, Julie M. In-situ characterization of laser-powder interaction and cooling rates through high-speed imaging of powder bed fusion additive manufacturing.  United States.  https://doi.org/10.1016/j.matdes.2017.09.044

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                    Scipioni Bertoli, Umberto, Guss, Gabe, Wu, Sheldon, Matthews, Manyalibo J., and Schoenung, Julie M. Thu .  
        "In-situ characterization of laser-powder interaction and cooling rates through high-speed imaging of powder bed fusion additive manufacturing".  United States.  https://doi.org/10.1016/j.matdes.2017.09.044.  https://www.osti.gov/servlets/purl/1409929.

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@article{osti_1409929,

  title        = {In-situ characterization of laser-powder interaction and cooling rates through high-speed imaging of powder bed fusion additive manufacturing},

  author       = {Scipioni Bertoli, Umberto and Guss, Gabe and Wu, Sheldon and Matthews, Manyalibo J. and Schoenung, Julie M.},

  abstractNote = {We report detailed understanding of the complex melt pool physics plays a vital role in predicting optimal processing regimes in laser powder bed fusion additive manufacturing. In this work, we use high framerate video recording of Selective Laser Melting (SLM) to provide useful insight on the laser-powder interaction and melt pool evolution of 316 L powder layers, while also serving as a novel instrument to quantify cooling rates of the melt pool. The experiment was performed using two powder types – one gas- and one water-atomized – to further clarify how morphological and chemical differences between these two feedstock materials influence the laser melting process. Finally, experimentally determined cooling rates are compared with values obtained through computer simulation, and the relationship between cooling rate and grain cell size is compared with data previously published in the literature.},

  doi          = {10.1016/j.matdes.2017.09.044},

  url          = {https://www.osti.gov/biblio/1409929},
  journal      = {Materials & Design},

  issn         = {0264-1275},

  number       = C,

  volume       = 135,

  place        = {United States},

  year         = {2017},

  month        = {9}

}

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https://doi.org/10.1016/j.matdes.2017.09.044

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Works referencing / citing this record:

Printability of 316 stainless steel
journal, April 2019

Mukherjee, T.; DebRoy, T.
Science and Technology of Welding and Joining, Vol. 24, Issue 5
https://doi.org/10.1080/13621718.2019.1607061

Subgrain-controlled grain growth in the laser-melted 316 L promoting strength at high temperatures
journal, May 2018

Saeidi, Kamran; Akhtar, Farid
Royal Society Open Science, Vol. 5, Issue 5
https://doi.org/10.1098/rsos.172394

Printability of 316 stainless steel
journal, April 2019

Mukherjee, T.; DebRoy, T.
Science and Technology of Welding and Joining, Vol. 24, Issue 5
https://doi.org/10.1080/13621718.2019.1607061

Subgrain-controlled grain growth in the laser-melted 316 L promoting strength at high temperatures
journal, May 2018

Saeidi, Kamran; Akhtar, Farid
Royal Society Open Science, Vol. 5, Issue 5
https://doi.org/10.1098/rsos.172394

Dynamics of pore formation during laser powder bed fusion additive manufacturing
journal, April 2019

Martin, Aiden A.; Calta, Nicholas P.; Khairallah, Saad A.
Nature Communications, Vol. 10, Issue 1
https://doi.org/10.1038/s41467-019-10009-2

Subsurface Cooling Rates and Microstructural Response during Laser Based Metal Additive Manufacturing
journal, February 2020

Thampy, Vivek; Fong, Anthony Y.; Calta, Nicholas P.
Scientific Reports, Vol. 10, Issue 1
https://doi.org/10.1038/s41598-020-58598-z

An instrument for in situ time-resolved X-ray imaging and diffraction of laser powder bed fusion additive manufacturing processes
journal, May 2018

Calta, Nicholas P.; Wang, Jenny; Kiss, Andrew M.
Review of Scientific Instruments, Vol. 89, Issue 5
https://doi.org/10.1063/1.5017236

Ultrafast X-ray imaging of laser–metal additive manufacturing processes
journal, August 2018

Parab, Niranjan D.; Zhao, Cang; Cunningham, Ross
Journal of Synchrotron Radiation, Vol. 25, Issue 5
https://doi.org/10.1107/s1600577518009554

New Aluminum Alloys Specifically Designed for Laser Powder Bed Fusion: A Review
journal, March 2019

Aversa, Alberta; Marchese, Giulio; Saboori, Abdollah
Materials, Vol. 12, Issue 7
https://doi.org/10.3390/ma12071007

Internal Friction Angle of Metal Powders
journal, April 2018

Zegzulka, Jiri; Gelnar, Daniel; Jezerska, Lucie
Metals, Vol. 8, Issue 4
https://doi.org/10.3390/met8040255

A Comprehensive Study of Steel Powders (316L, H13, P20 and 18Ni300) for Their Selective Laser Melting Additive Manufacturing
journal, January 2019

Yan, Jujie; Zhou, Yinghao; Gu, Ruinan
Metals, Vol. 9, Issue 1
https://doi.org/10.3390/met9010086

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Title: In-situ characterization of laser-powder interaction and cooling rates through high-speed imaging of powder bed fusion additive manufacturing

Abstract

Citation Formats

Printability of 316 stainless steel journal, April 2019

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journal, May 2018

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