Capturing Marangoni flow via synchrotron imaging of selective laser melting
File(s)
Author(s)
Clark, SJ
Leung, CLA
Chen, Y
Sinclair, L
Marussi, S
Type
Conference Paper
Abstract
Marangoni flow has a substantial influence on the quality of components fabricated via laser powder bed fusion (LPBF). However, Marangoni flow in melt pools is rarely quantified due to the opacity of liquid metals and the necessity for in situ evaluation. Here we report the findings of high-temporal-resolution synchrotron x-ray radiography experiments tracking the flow in the melt-pool. Dense, highly attenuating tungsten carbide particles are seeded within an elemental powder blend of aluminium and copper of varying composition. Due to the extremely high temporal resolution of greater than 50 kfps at the 31-ID-B beamline at the Advanced Photon Source, USA, we can track the position of tracer particles from frame to frame. This data provides valuable process guidance for optimising mixing and informs the development and validation of multiphysics models.
Date Issued
2020-06-13
Date Acceptance
2020-06-01
Citation
IOP Conference Series: Materials Science and Engineering, 2020, 861, pp.1-6
URI
URL
DOI
Publisher
IOP Publishing
Start Page
1
End Page
6
Journal / Book Title
IOP Conference Series: Materials Science and Engineering
Volume
861
Copyright Statement
© 2020 The Author(s). Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
License URL
Identifier
https://iopscience.iop.org/article/10.1088/1757-899X/861/1/012010
Source
MCWASP XV: International Conference on Modelling of Casting, Welding and Advanced Solidification Processes
Publication Status
Published
Start Date
2020-06-22
Finish Date
2020-06-23
Coverage Spatial
Jönköping, Sweden
Date Publish Online
2020-06-13