[1]赵九洲,江鸿翔,孙倩,等.偏晶合金凝固过程及凝固组织控制方法研究进展[J].中国材料进展,2017,(4):006-10.[doi:10.7502/j.issn.1674-3962.2017.04.02]
 ZHAO Jiuzhou,JIANG Hongxiang,SUN Qian,et al.Progress of Research on Solidification Process and Microstructure Control of Immiscible Alloys[J].MATERIALS CHINA,2017,(4):006-10.[doi:10.7502/j.issn.1674-3962.2017.04.02]
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偏晶合金凝固过程及凝固组织控制方法研究进展()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2017年第4期
页码:
006-10
栏目:
前沿综述
出版日期:
2017-04-30

文章信息/Info

Title:
Progress of Research on Solidification Process and Microstructure Control of Immiscible Alloys
作者:
赵九洲江鸿翔孙倩黎旺何杰
中国科学院金属研究所, 中国科学技术大学材料科学与工程学院
Author(s):
ZHAO JiuzhouJIANG HongxiangSUN QianLI WangHE Jie
Institute of Metal Research, Chinese Academy of Sciences; School of Materials Science and Engineering, University of Science and Technology of China
关键词:
偏晶合金凝固组织演变建模模拟
Keywords:
Immiscible alloys Solidification Microstructure evolution Modelling Simulation
DOI:
10.7502/j.issn.1674-3962.2017.04.02
文献标志码:
A
摘要:
偏晶合金十分广泛,其中许多具有重要的工业应用背景,但该类合金凝固时首先发生液-液相变,极易形成偏析严重乃至两相分离的凝固组织,其凝固过程研究与工业制备技术研发受到了严重限制。近年来偏晶合金凝固理论受到材料科学领域的高度重视,人们先后在地面、空间和外场作用下开展了大量实验研究,并开展了广泛的建模与模拟研究。本文综述了有关偏晶合金凝固研究的进展,介绍了本研究团队相关研究工作,展望了未来偏晶合金凝固研究的方向。
Abstract:
Alloys with a miscibility gap in the liquid state are a broad kind of materials. Many of them have great potential applications in the fields such as chemical industry, automobile, machinery, electronic industry for their special physical and mechanical characteristics. However, these alloys have an essential drawback that the miscibility gap poses problems during solidification. When a homogeneous single phase liquid is cooled into the miscibility gap, it develops into two liquids. Generally, the liquid-liquid decomposition leads to a microstructure with serious phase segregation under the conventional solidification conditions. The application of immiscible alloys is, thus, very limited. In recent decades, many experimental and theoretical researches were carried out to investigate the solidification of immiscible alloys under the normal gravity and microgravity conditions. It has been demonstrated that the rapid solidification technique and sub-rapid solidification technique have great future in the manufacturing of immiscible alloys. Addition of effective inoculants for the nucleation of the minority phase droplets and proper application of external fields, e.g., static magnetic field, electric current pulses, etc. may promote the formation of immiscible alloys with a well dispersed microstructure. Up to date, great progress has been made in this field. The objective of this article is to review the research work in this field during the last few decades.
更新日期/Last Update: 2017-03-31