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Title: The three-dimensional morphology of growing dendrites

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep11824· OSTI ID:1214789
 [1];  [2];  [1];  [1];  [3];  [2];  [4];  [1]
  1. Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering.
  2. Purdue Univ., West Lafayette, IN (United States). Dept. of Electrical and Computer Engineering.
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Carnegie Mellon University, Pittsburgh, PA (United States). Dept. of Materials Science and Engineering.

The processes controlling the morphology of dendrites have been of great interest to a wide range of communities, since they are examples of an out-of-equilibrium pattern forming system, there is a clear connection with battery failure processes, and their morphology sets the properties of many metallic alloys. We determine the three-dimensional morphology of free growing metallic dendrites using a novel X-ray tomographic technique that improves the temporal resolution by more than an order of magnitude compared to conventional techniques. These measurements show that the growth morphology of metallic dendrites is surprisingly different from that seen in model systems, the morphology is not self-similar with distance back from the tip, and that this morphology can have an unexpectedly strong influence on solute segregation in castings. As a result, these experiments also provide benchmark data that can be used to validate simulations of free dendritic growth.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States). Dept. of Materials Science and Engineering; Ames Laboratory (AMES), Ames, IA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-06CH11357; FC52-08NA28752; AC52-06NA25396
OSTI ID:
1214789
Alternate ID(s):
OSTI ID: 1214814; OSTI ID: 1235931
Report Number(s):
LA-UR-15-22761; srep11824
Journal Information:
Scientific Reports, Vol. 5, Issue C; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 74 works
Citation information provided by
Web of Science

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Cited By (16)

The mechanism of eutectic growth in highly anisotropic materials journal September 2016
GENFIRE: A generalized Fourier iterative reconstruction algorithm for high-resolution 3D imaging journal September 2017
Motion compensated micro-CT reconstruction for in-situ analysis of dynamic processes journal May 2018
Extracting shape from curvature evolution in moving surfaces journal January 2018
New software protocols for enabling laboratory based temporal CT journal September 2018
Real-time quasi-3D tomographic reconstruction journal April 2018
Simulation of temperature, stress and microstructure fields during laser deposition of Ti–6Al–4V journal September 2018
Time-resolved x-ray phase-contrast tomography of sedimenting micro-spheres journal April 2019
Investigation using 4D-CT of massive-like transformation from the δ to γ phase during and after δ-solidification in carbon steels journal May 2019
In Situ Observation of Dendrite Behavior of Electrode in Half and Full Cells journal January 2019
On the topological, morphological, and microstructural characterization of nanoporous metals journal January 2018
Time-resolved x-ray phase-contrast tomography of sedimenting micro-spheres text January 2019
Simulation of temperature, stress and microstructure fields during laser deposition of Ti-6Al-4V text January 2018
In situ observation of solidification patterns in diffusive conditions journal April 2016
Twin-mediated crystal growth: an enigma resolved journal June 2016
Improved tomographic reconstruction of large-scale real-world data by filter optimization journal December 2016

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