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Predicting ductility in quaternary B2-like alloys
Harvey Mudd College, Claremont, California, United States.
Harvey Mudd College, Claremont, California, United States.
Harvey Mudd College, Claremont, California, United States.
Materials Department, University of California, Santa Barbara, California, United States.
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2021 (English)In: Physical Review Materials, E-ISSN 2475-9953, Vol. 5, no 3, article id 033604Article in journal (Refereed) Published
Abstract [en]

Although intermetallics with a B2-type crystal structure are typically brittle, a class of B2 intermetallics that demonstrates unusually high ductility has been reported. A set of recently developed B2-like quaternary precious metal-rare earth alloys also includes compositions with significant ductility. To predict ductility in these systems, we have adapted a computational energy-based metric based on slip systems and relative stability of planar defects, developed to predict ductility in B2 binary systems, for use with quaternary B2-like alloys. The computational metric successfully predicts the experimentally-determined ductility or brittleness of 15 B2-like quaternary precious metal-rare earth and refractory alloys.

Place, publisher, year, edition, pages
American Physical Society, 2021. Vol. 5, no 3, article id 033604
Keywords [en]
Crystal structure, Ductility, Forecasting, Fracture mechanics, Intermetallics, Precious metals, Rare earths, Refractory alloys, Refractory metals, Binary systems, Energy-based, Planar defect, Relative stabilities, Slip system, Precious metal alloys
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:hj:diva-55615DOI: 10.1103/PhysRevMaterials.5.033604ISI: 000627754300001Scopus ID: 2-s2.0-85104469442OAI: oai:DiVA.org:hj-55615DiVA, id: diva2:1629574
Available from: 2022-01-18 Created: 2022-01-18 Last updated: 2022-01-18Bibliographically approved

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Conway, Patrick L. J.

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CiteExportLink to record
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