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Title: Discovery of a meta-stable Al-Sm phase with unknown stoichiometry using a genetic algorithm

Unknown crystalline phases observed during the devitrification process of glassy metal alloys significantly limit our ability to understand and control phase selection in these systems driven far from equilibrium. Here, we report a new meta-stable Al5Sm phase identified by simultaneously searching Al-rich compositions of the Al–Sm system, using an efficient genetic algorithm. The excellent match between calculated and experimental X-ray diffraction patterns confirms that this new phase appeared in the crystallization of melt-spun Al90Sm10 alloys.
Authors:
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  1. Iowa State
Publication Date:
OSTI Identifier:
1132640
Resource Type:
Journal Article
Resource Relation:
Journal Name: Scripta Mater.; Journal Volume: 81; Journal Issue: 06, 2014
Research Org:
Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
Sponsoring Org:
DOE - BASIC ENERGY SCIENCES
Country of Publication:
United States
Language:
ENGLISH