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首页> 外文期刊>Journal of surface investigation: x-ray, synchrotron and neutron techniques >Simulation of thermally induced processes of diffusion and phase formation in layered Fe-Sn and Fe-Zr systems
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Simulation of thermally induced processes of diffusion and phase formation in layered Fe-Sn and Fe-Zr systems

机译：Fe-Sn和Fe-Zr层状体系中热诱导扩散和相形成过程的模拟

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摘要

The simulation results of thermally induced processes of diffusion and phase formation for the Fe-Sn and Fe-Zr layered systems experimentally investigated by M?ssbauer spectroscopy are presented. Simulation has been carried out using the specially designed DIFFUSION program, the basic functional possibilities of which are described in detail. The physical model is based on the phenomenological Darken theory and on the interdiffusion mechanism of components along the continuous diffusion channels of phases in two-phase regions of the system. The simulation results agree well with the experimental data. The character of phase transformations in the investigated layered systems is determined by the change in a local concentration of components during their interdiffusion and corresponds to the features of the equilibrium diagrams for both binary systems.
机译：给出了用Msssbauer光谱法实验研究的Fe-Sn和Fe-Zr层状体系热诱导的扩散和相形成过程的模拟结果。使用专门设计的DIFFUSION程序进行了仿真，并详细描述了其基本功能。物理模型基于现象学变暗理论，并且基于系统两相区域中各相沿着相的连续扩散通道的成分相互扩散机制。仿真结果与实验数据吻合良好。在研究的分层系统中，相变的特征取决于组分在相互扩散过程中局部浓度的变化，并且与两种二元体系的平衡图特征相对应。

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