Ab initio study of compositional trends in solid solution strengthening in metals with low Peierls stresses

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F15%3A00450466" target="_blank" >RIV/68081723:_____/15:00450466 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.actamat.2015.07.054" target="_blank" >http://dx.doi.org/10.1016/j.actamat.2015.07.054</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.actamat.2015.07.054" target="_blank" >10.1016/j.actamat.2015.07.054</a>

Result language

angličtina

Original language name

Ab initio study of compositional trends in solid solution strengthening in metals with low Peierls stresses

Original language description

We identify and analyze general trends governing solid solution strengthening in binary alloys containing solutes across the Periodic table using quantum-mechanical calculations. Here we present calculations for the model system of Al binary solid solutions. The identified trends originate from an approximately parabolic dependence of two strengthening parameters to quantitatively predict the solid solution strengthening effect, i.e. the volume and slip misfit parameters. The volume misfit parameter shows a convex behavior as a function of the solute element group number in the periodic table, whereas the slip misfit parameter shows a concave behavior. By analyzing reported data, a similar trend is also found in Ni and Mg (basal slip) binary systems. Hence, these two strengthening parameters are strongly anti-correlated, which can be understood in terms of the Fermi level shift in the framework of free electron model. The chemical trends identified in this study enable a rapid and effi

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta Materialia

ISSN

1359-6454

e-ISSN

—

Volume of the periodical

98

Issue of the periodical within the volume

OCT

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

367-376

UT code for WoS article

000361074000037

EID of the result in the Scopus database

2-s2.0-84938830781