动态合成Al-Ti-B细化剂的制备工艺和细化性能研究
Study on Preparation Technology and Refining Performance of Dynamically Synthesized Al-Ti-B Refiner
DOI: 10.12677/OJNS.2020.85051, PDF,    科研立项经费支持
作者: 李仁焕：南宁学院，广西 南宁
关键词: Al-Ti-B；细化剂；制备工艺；细化性能；Al-Ti-B； Refiner； Preparation Technology； Refining Performance
摘要: Al-Ti-B-RE细化剂能够提升细化剂的综合性能，是目前最有研发价值和最有潜力的铝用晶粒细化剂之一。采用常规搅拌工艺存在比重偏析，影响晶粒细化效果及铝合金的整体性能。本研究首先通过中国知网和爱思唯尔学术平台分析Al-Ti-B细化剂的研究现状，并进一步分析混合熔融法、氟盐反应法、超声搅拌法、电磁振动法等制备工艺的优缺点，以及不同稀土、不同配比、以及细化剂中毒的内在机理。结果表明，可以采取超声搅拌法、电磁振动法等动态合成技术，并考虑微量元素在Al-Ti-B细化剂中的配比，以获取更小晶粒和更好力学性能的Al-Ti-B-RE细化剂。
Abstract: Al-Ti-B-RE refiner, as one of the most valuable and potential grain refiners for aluminum at present, can improve the comprehensive performance of refiners. Specific gravity segregation exists in conventional stirring process, which affects the grain refinement effect and the overall performance of aluminum alloy. In this study, the research status of Al-Ti-B refiner was firstly analyzed through CNKI and Elsevier academic platform. Then the advantages and disadvantages of preparation technologies such as the mixed melting method, the fluoride salt reaction method, the ultrasonic stirring method and the electromagnetic vibration method were further analyzed, as well as the internal mechanism of different rare earths, different proportions and refiner poisoning. The results show that the ultrasonic stirring method, the electromagnetic vibration method and other dynamically synthesis techniques can be adopted, and the ratio of trace elements in Al-Ti-B refiner can be considered to obtain a kind of Al-Ti-B-RE refiner with smaller grain size and better mechanical properties.
文章引用：李仁焕. 动态合成Al-Ti-B细化剂的制备工艺和细化性能研究[J]. 自然科学, 2020, 8(5): 418-423. https://doi.org/10.12677/OJNS.2020.85051

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