Actions for Mechanism of Radiation Damage Reduction in Equiatomic Multicomponent Single Phase Alloys [electronic resource].

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Mechanism of Radiation Damage Reduction in Equiatomic Multicomponent Single Phase Alloys [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Basic Energy Sciences, 2016.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
Article numbers 135,504 : digital, PDF file
Additional Creators
Oak Ridge National Laboratory, United States. Department of Energy. Office of Basic Energy Sciences, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Recently a new class of metal alloys, of single-phase multicomponent composition at roughly equal atomic concentrations (“equiatomic”), have been shown to exhibit promising mechanical, magnetic, and corrosion resistance properties, in particular, at high temperatures. These features make them potential candidates for components of next-generation nuclear reactors and other high-radiation environments that will involve high temperatures combined with corrosive environments and extreme radiation exposure. In spite of a wide range of recent studies of many important properties of these alloys, their radiation tolerance at high doses remains unexplored. In this work, a combination of experimental and modeling efforts reveals a substantial reduction of damage accumulation under prolonged irradiation in single-phase NiFe and NiCoCr alloys compared to elemental Ni. This effect is explained by reduced dislocation mobility, which leads to slower growth of large dislocation structures. Finally and moreover, there is no observable phase separation, ordering, or amorphization, pointing to a high phase stability of this class of alloys.
Report Numbers
E 1.99:1261311
Subject(s)
Note
Published through SciTech Connect.
04/01/2016.
"EO0101010"
"KC0207010"
"CEEO028"
"ERKCM99"
Physical Review Letters 116 13 ISSN 0031-9007 AM
F. Granberg; K. Nordlund; Mohammad W. Ullah; K. Jin; C. Lu; H. Bei; L. M. Wang; F. Djurabekova; W. J. Weber; Y. Zhang.
European Consortium for the Development of Fusion Energy (EUROfusion), Garching (Germany)
Academy of Finland, Helsinki (Finland)
Funding Information
AC05-00OR22725
633053
View MARC record | catkey: 24056044