用统计矩法研究B2-FeSi的热力学和弹性性能

IF 1.1 4区工程技术 Q4 Engineering

High Temperatures-high Pressures Pub Date : 2022-01-01 DOI:10.32908/hthp.v51.1231

N. Hoc, Nguyen Duc Hien

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引用次数: 0

摘要

采用统计矩法推导了B2替代合金AB和B2间隙合金AB在温度和压力下的热力学和弹性理论。在取代原子B和间隙原子B浓度为零的情况下，我们得到了具有简单立方结构的主金属A的热力学和弹性理论。在温度0 ~ 1500k和压力0 ~ 160gpa范围内，采用B2-Fe99Si1的间隙合金模型和B2-Fe50Si50的替代合金模型进行数值计算，与实验和其他计算结果吻合较好。

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Study on thermodynamic and elastic properties of B2-FeSi by statistical moment method

The thermodynamic and elastic theory of B2 substitutional alloy AB and B2 interstitial alloy AB under temperature and pressure are derived by the statistical moment method. In the case of zero concentration of substitutional atoms B and interstitial atoms B, we obtain the thermodynamic and elastic theory of main metal A with simple cubic structure. Our numerical calculations according to the model of interstitial alloy for B2-Fe99Si1 and the model of substitutional alloy for B2-Fe50Si50 in the temperature interval from zero to 1500 K and the pressure interval from zero to 160 GPa are in relatively good with experiments and other calculations.

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来源期刊

High Temperatures-high Pressures THERMODYNAMICS-MECHANICS

CiteScore

1.00

自引率

9.10%

发文量

期刊介绍： High Temperatures – High Pressures (HTHP) is an international journal publishing original peer-reviewed papers devoted to experimental and theoretical studies on thermophysical properties of matter, as well as experimental and modelling solutions for applications where control of thermophysical properties is critical, e.g. additive manufacturing. These studies deal with thermodynamic, thermal, and mechanical behaviour of materials, including transport and radiative properties. The journal provides a platform for disseminating knowledge of thermophysical properties, their measurement, their applications, equipment and techniques. HTHP covers the thermophysical properties of gases, liquids, and solids at all temperatures and under all physical conditions, with special emphasis on matter and applications under extreme conditions, e.g. high temperatures and high pressures. Additionally, HTHP publishes authoritative reviews of advances in thermophysics research, critical compilations of existing data, new technology, and industrial applications, plus book reviews.