Theoretical elastic moduli of ferromagnetic bcc Fe alloys

The polycrystalline elastic parameters of ferromagnetic Fe(1-x)M(x) (M = Al, Si, V, Cr, Mn, Co, Ni, Rh; 0 ≤ x ≤ 0.1) random alloys in the body centered cubic (bcc) crystallographic phase have been calculated using first-principles alloy theory in combination with statistical averaging methods. With...

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Veröffentlicht in:Journal of physics. Condensed matter 2010-07, Vol.22 (27), p.275402-275402
Hauptverfasser: Zhang, Hualei, Punkkinen, Marko P J, Johansson, Börje, Vitos, Levente
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container_end_page 275402
container_issue 27
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container_title Journal of physics. Condensed matter
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creator Zhang, Hualei
Punkkinen, Marko P J
Johansson, Börje
Vitos, Levente
description The polycrystalline elastic parameters of ferromagnetic Fe(1-x)M(x) (M = Al, Si, V, Cr, Mn, Co, Ni, Rh; 0 ≤ x ≤ 0.1) random alloys in the body centered cubic (bcc) crystallographic phase have been calculated using first-principles alloy theory in combination with statistical averaging methods. With a few exceptions, the agreement between the calculated and the available experimental data for the polycrystalline aggregates is satisfactory. All additions considered here decrease the bulk modulus (B) and Poisson's ratio (ν) of bcc Fe. The complex composition dependence of the C(44) single-crystal elastic constant is reflected in the polycrystalline shear modulus (G), Young's modulus (E), and Debye temperature (Θ). The polycrystalline anisotropy of bcc Fe is increased by all additions, and Al, Si, Ni, and Rh yield the largest alloying effects.
doi_str_mv 10.1088/0953-8984/22/27/275402
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Condensed matter</title><addtitle>J Phys Condens Matter</addtitle><description>The polycrystalline elastic parameters of ferromagnetic Fe(1-x)M(x) (M = Al, Si, V, Cr, Mn, Co, Ni, Rh; 0 ≤ x ≤ 0.1) random alloys in the body centered cubic (bcc) crystallographic phase have been calculated using first-principles alloy theory in combination with statistical averaging methods. With a few exceptions, the agreement between the calculated and the available experimental data for the polycrystalline aggregates is satisfactory. All additions considered here decrease the bulk modulus (B) and Poisson's ratio (ν) of bcc Fe. The complex composition dependence of the C(44) single-crystal elastic constant is reflected in the polycrystalline shear modulus (G), Young's modulus (E), and Debye temperature (Θ). 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subjects Algorithms
Alloying effects
Alloys
Aluminum
Aluminum - chemistry
Body centered cubic lattice
Condensed matter physics
Condensed matter: structure, mechanical and thermal properties
Crystallization
Elastic Modulus
Elasticity
Elasticity, elastic constants
Exact sciences and technology
Ferromagnetism
Fysik
Iron
Iron - chemistry
Kondenserade materiens fysik
Magnetics
Mathematical analysis
Mechanical and acoustical properties of condensed matter
Mechanical properties of solids
Models, Statistical
NATURAL SCIENCES
NATURVETENSKAP
Nickel
Nickel - chemistry
Physics
Poisson Distribution
Rhodium - chemistry
Silicon - chemistry
title Theoretical elastic moduli of ferromagnetic bcc Fe alloys
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