A Combined Electromagnetic Levitation Melting, Counter-Gravity Casting, and Mold Preheating Furnace for Producing TiAl Alloy
A Combined Electromagnetic Levitation Melting, Counter-Gravity Casting, and Mold Preheating Furnace for Producing TiAl Alloy
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一种用于生产钛铝合金的电磁悬浮熔炼、反重力铸造和模具预热组合炉
DOI：
10.1002/adem.201700526
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发表时间：
2018
影响因子：
3.6
通讯作者：
Hu Rui
中科院分区：
文献类型：
--
作者：
Yang Jieren;Wang Hu;Wu Yulun;Wang Xuyang;Hu Rui
在这项工作中，作者描述了发展的TiAl铸件在广泛的方法。为了解决TiAl合金铸件出现的铸造缺陷和裂纹问题，设计并建造了一种新型的铸造炉。该设计结合了感应凝壳熔化、反重力铸造和模具加热，通过可控工艺促进填充和微观结构形成。这一目的是为了改善TiAl铸件的成形能力和微观组织控制。对名义成分为Ti-48 Al-2Cr-2Nb（at%）的TiAl合金进行了熔炼和铸造试验。X射线检查表明，TiAl部件的成型不包含宏观铸造缺陷，验证了该技术的优势。研究结果对致力于工业规模TiAl铸造技术创新和改进的研究人员具有重要意义。
In this work, the authors describe the development of TiAl castings over a wide range of approaches. To overcome casting defects and cracks that appear in TiAl castings, a novel furnace is designed and constructed. The design combines induction skull melting, counter‐gravity casting, and mold heating, which facilitates both filling and microstructure formation via a controllable process. This aim is to improve shaping capabilities and microstructural control for TiAl castings. Melting and casting experiments on TiAl alloys with a nominal composition corresponding to Ti–48Al–2Cr–2Nb (at%) are carried out and discussed. X‐ray examinations indicate that the shaping of the TiAl components dose not contain macro casting defects, validating the advantages of this technique. The results are of interest to researchers devoted to technical innovations and modifications for TiAl casting at the industrial scale.