Ab initio study of phosphorus effect on vacancy-mediated process in nickel alloys - an insight into Ni2Cr ordering

Ab initio study of phosphorus effect on vacancy-mediated process in nickel alloys - an insight into Ni2Cr ordering

The development of long range order in nickel-chromium alloys is of great technological interest but the kinetics and mechanisms of the transformation are poorly understood. The present research utilizes a combined computational and experimental approach to elucidate the mechanism by which phosphoru...

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Veröffentlicht in:arXiv.org 2019-04
Hauptverfasser: Jia-Hong, Ke, Young, George A, Tucker, Julie D
Format: Artikel
Sprache:eng
Schlagworte:
Alloy development
Alloy systems
Atomic properties
Diffusion
Exchanging
First principles
Long range order
Mathematical models
Microhardness
Migration
Nickel base alloys
Nickel chromium alloys
Phosphorus
Physics - Materials Science
Solvents
Transformations
Vacancies
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Zusammenfassung:The development of long range order in nickel-chromium alloys is of great technological interest but the kinetics and mechanisms of the transformation are poorly understood. The present research utilizes a combined computational and experimental approach to elucidate the mechanism by which phosphorus accelerates the ordering rate of stoichiometric Ni_2Cr in Ni-Cr alloys. A series of Ni-33%Cr-x%P samples (in atomic percent) were fabricated with phosphorus concentrations, x =
ISSN:2331-8422
DOI:10.48550/arxiv.1904.09684