Abstract
Long-term stability of high entropy alloys (HEAs) is a critical consideration for the design and practical application of HEAs. It has long been assumed that many HEAs are a kinetically-stabilized metastable structure, and recent experiments have confirmed this hypothesis by observing HEA decomposition after long-term equilibration. In the present work, we demonstrate the use of the CALculation of PHAse Diagrams (CALPHAD) approach to predict HEA stability and processing parameters, comparing experimental long-term annealing observations to CALPHAD phase diagrams from a commercially-available HEA database. We find good agreement between single- and multi-phase predictions and experiments.
Original language | English (US) |
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Pages (from-to) | 5-8 |
Number of pages | 4 |
Journal | Scripta Materialia |
Volume | 146 |
DOIs | |
State | Published - Mar 15 2018 |
Keywords
- CALPHAD
- Metal and alloys
- Microstructure
- Phase diagram
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys