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BEGIN:VEVENT
DTSTAMP:20260202T201229Z
LOCATION:Art of HPC - Plaza Lobby
DTSTART;TZID=America/Chicago:20251118T080000
DTEND;TZID=America/Chicago:20251118T190000
UID:submissions.supercomputing.org_SC25_sess605_art104@linklings.com
SUMMARY:Cr Island Rising from an Iron Sea: Atomic-Scale Structure of an Ir
 on (Fe)-Chromium (Cr) Alloy Post-Irradiation
DESCRIPTION:Yalei Tang, Brenyn Faith Rothwell, Nathan Woods, Mukesh Bachha
 v, and Matthew William Anderson (Idaho National Laboratory)\n\nIn this 3D 
 visualization, we delve into the atomic-scale structure of an Iron (Fe)-Ch
 romium (Cr) alloy post-irradiation, a vital material for nuclear energy ap
 plications. The image contrasts Fe atoms in black with Cr atoms represente
 d as vibrant spheres, each hue indicating the specific cluster to which th
 e Cr atom belongs.\n\nCaptured through atom probe tomography (APT), this s
 napshot zooms into a 3-nanometer-thick slice from a sample measuring rough
 ly 80 × 80 × 200 nanometers. The slice encompasses 447,418 atoms, among wh
 ich approximately 54,000 are Cr atoms. The Fe-Cr alloy, irradiated to 1.8 
 displacements per atom (dpa) at 290 degrees Celsius at Idaho National Labo
 ratory’s Advanced Test Reactor, reveals Cr atoms clustering due to irradia
 tion effects, a phenomenon that significantly influences the alloy's physi
 cal and mechanical properties.\n\nLeveraging the power of high performance
  computing (HPC) and advanced deep learning, this image-based workflow ide
 ntifies and characterizes Cr clusters with unprecedented precision. The HP
 C workflow surpasses manual methods, offering enhanced consistency, speed,
  scalability, and reproducibility in APT data analysis. Each cluster is di
 stinctly color-coded, while Fe atoms create the black backdrop, uncovering
  the intricate, hidden structure through the marriage of data, computation
 , and design.\n\nVisualizing real experimental data is essential to unders
 tanding complex atomic-scale phenomena that are otherwise invisible. This 
 image is not a simulation, it is reconstructed from actual APT measurement
 s, revealing the spatial distribution of atoms. By rendering these data vi
 sually, we can more effectively interpret clustering behavior, validate co
 mputational methods, and communicate scientific insights.\n\nTag: Art of H
 PC\n\nRecording: Not Livestreamed, Not Recorded\n\nRegistration Category: 
 Technical Program Reg Pass, Workshop Reg Pass, Tutorial Reg Pass, Exhibits
  Reg Pass\n\n
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