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Study on the effect of pressure on the equilibrium and stability of the solid-liquid interface in solidification of binary alloys

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Abstract

The equilibrium of the solid-liquid interface in pressurized solidification process of binary alloys was studied using the Gibbs theory, and the stability of the solid-liquid interface was discussed based on the consideration of the effects of pressure on the diffusion coefficient, the interface growth rate and the equilibrium liquid composition. A mathematical description of the equilibrium status, the relationship of temperature, pressure, composition and interfacial tension was obtained, and further, a mathematical representation of the curvature radius of solid-liquid interface was developed, which facilitates a thorough understanding of the controlled variables of the interfacial stability.

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Authors and Affiliations

  1. Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Tsinghua University, Beijing, 100084, China

    XiaoRan Huang, ZhiQiang Han & BaiCheng Liu

  2. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing, 100084, China

    BaiCheng Liu

Authors
  1. XiaoRan Huang
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  2. ZhiQiang Han
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  3. BaiCheng Liu
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Correspondence to ZhiQiang Han.

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Huang, X., Han, Z. & Liu, B. Study on the effect of pressure on the equilibrium and stability of the solid-liquid interface in solidification of binary alloys. Sci. China Technol. Sci. 54, 479–483 (2011). https://doi.org/10.1007/s11431-010-4219-6

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  • DOI: https://doi.org/10.1007/s11431-010-4219-6

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