Calculation of surface energy of metals and alloys by the electron density functional method

Abstract

The surface energy values of (100), (110), (111) surfaces in Ni, AI and ordered alloys NiAl and NisAl have been calculated within the framework of methodology based upon the electron density functional method. The results of calculations are in good agreement with the known for pure metals experimental data and in case of Ni₃Al alloy. There is also a good agreement with the results obtained by calculation using the embedded atom method. The investigation has been carried out in this work to show that the surface energy σ of alloys can not be interpreted as an averaged concentration σ of pure metals. For NiAl, the obtained results reveal considerable distinctions in anisotropy of σ in comparison to the anisotropy of surface energy in pure metals.

Original language	English
Pages (from-to)	320-322
Number of pages	3
Journal	Journal of Materials Science and Technology
Volume	14
Issue number	4
Publication status	Published - 1 Dec 1998

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Polymers and Plastics
Metals and Alloys
Materials Chemistry

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title = "Calculation of surface energy of metals and alloys by the electron density functional method",

abstract = "The surface energy values of (100), (110), (111) surfaces in Ni, AI and ordered alloys NiAl and NisAl have been calculated within the framework of methodology based upon the electron density functional method. The results of calculations are in good agreement with the known for pure metals experimental data and in case of Ni3Al alloy. There is also a good agreement with the results obtained by calculation using the embedded atom method. The investigation has been carried out in this work to show that the surface energy σ of alloys can not be interpreted as an averaged concentration σ of pure metals. For NiAl, the obtained results reveal considerable distinctions in anisotropy of σ in comparison to the anisotropy of surface energy in pure metals.",

author = "Kuznetsoy, {V. M.} and Kadyrov, {R. I.} and Rudenskii, {G. E.}",

year = "1998",

month = dec,

day = "1",

language = "English",

volume = "14",

pages = "320--322",

journal = "Journal of Materials Science and Technology",

issn = "1005-0302",

publisher = "Chinese Society of Metals",

number = "4",

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T1 - Calculation of surface energy of metals and alloys by the electron density functional method

AU - Kuznetsoy, V. M.

AU - Kadyrov, R. I.

AU - Rudenskii, G. E.

PY - 1998/12/1

Y1 - 1998/12/1

N2 - The surface energy values of (100), (110), (111) surfaces in Ni, AI and ordered alloys NiAl and NisAl have been calculated within the framework of methodology based upon the electron density functional method. The results of calculations are in good agreement with the known for pure metals experimental data and in case of Ni3Al alloy. There is also a good agreement with the results obtained by calculation using the embedded atom method. The investigation has been carried out in this work to show that the surface energy σ of alloys can not be interpreted as an averaged concentration σ of pure metals. For NiAl, the obtained results reveal considerable distinctions in anisotropy of σ in comparison to the anisotropy of surface energy in pure metals.

AB - The surface energy values of (100), (110), (111) surfaces in Ni, AI and ordered alloys NiAl and NisAl have been calculated within the framework of methodology based upon the electron density functional method. The results of calculations are in good agreement with the known for pure metals experimental data and in case of Ni3Al alloy. There is also a good agreement with the results obtained by calculation using the embedded atom method. The investigation has been carried out in this work to show that the surface energy σ of alloys can not be interpreted as an averaged concentration σ of pure metals. For NiAl, the obtained results reveal considerable distinctions in anisotropy of σ in comparison to the anisotropy of surface energy in pure metals.

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VL - 14

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JF - Journal of Materials Science and Technology

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