[1]解文军,魏炳波.空间模拟条件下三元共晶合金凝固研究[J].中国材料进展,2017,(12):001-5.[doi:10.7502/j.issn.1674-3962.2017.12.01]
XIE Wenjun,WEI Bingbo.Solidification of Ternary Eutectic Alloys under Simulated Space Conditions[J].MATERIALS CHINA,2017,(12):001-5.[doi:10.7502/j.issn.1674-3962.2017.12.01]
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空间模拟条件下三元共晶合金凝固研究()
中国材料进展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
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- 期数:
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2017年第12期
- 页码:
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001-5
- 栏目:
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前沿综述
- 出版日期:
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2017-12-31
文章信息/Info
- Title:
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Solidification of Ternary Eutectic Alloys under Simulated Space Conditions
- 作者:
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解文军; 魏炳波
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西北工业大学应用物理系
- Author(s):
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XIE Wenjun; WEI Bingbo
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Department of Applied Physics, Northwestern Polytechnical University
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- 关键词:
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三元共晶; 空间模拟条件; 凝固
- Keywords:
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Ternary Eutectics; Simulated Space Conditions; Solidification
- DOI:
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10.7502/j.issn.1674-3962.2017.12.01
- 文献标志码:
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A
- 摘要:
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三元共晶凝固过程涉及三个固相在同一液相中的竞争形核和协作生长,可以形成丰富多样的凝固组织,对发展原位复合材料制备技术和研究自发模式形成现象都具有重要的意义。空间环境中的微重力和无容器效应消除了重力引起的对流、沉降以及器壁引起的异质形核,为深入研究非平衡快速凝固规律提供了理想的实验条件。本文对国内外采用浸浮净化、自由落体、超声悬浮等地面模拟方法开展的三元共晶合金凝固研究工作进行了综述,并对未来发展趋势进行了展望。
- Abstract:
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The solidification of ternary eutectic alloys involves competitive nucleation and cooperative growth of three solid phases in the same mother liquid phase, which generates plenty of microstructural morphologies. This is of importance for the methodological study of in situ composite material preparation as well as theoretical exploration of pattern formation phenomena. The microgravity effect and containerless state in space environment eliminates the convection and buoyancy induced by gravity, and avoids the heterogeneous nucleation originated from container walls, providing an ideal experimental condition for rapid solidification of metastable melts. This paper reviews the recent progress of ternary eutectic solidification research, performed with such ground simulation methods as glass fluxing, drop tube, and acoustic levitation. The prospective developing trends are also discussed.
更新日期/Last Update:
2017-11-28