Research status of yttria-based ceramic shell molds for precision casting of titanium alloys

doi:10.3969/j.issn.1001-1935.2026.05.012

Abstract

Abstract: As a crucial forming technology for titanium alloys,precision casting lies in the selection and performance optimization of mold shell materials.Yttria has become the preferred material to suppress the interfacial reactions with molten titanium owing to its high melting point,excellent chemical stability and low thermal expansion coefficient.In this work,the research status of yttria mold shells for titanium alloy precision casting was reviewed,including advances in the aspects of binders,mineralizers,performance optimization,and preparation processes.The current challenges were analyzed and the future development trends were pointed out.

Key words: titanium alloy, precision casting, ceramic shell mold, yttrium oxide, binders

摘要： 精密铸造作为钛合金成型的重要技术,其关键在于型壳材料的选择与性能优化。Y₂O₃因具有高熔点、优异的化学稳定性和低的热膨胀系数等特性,成为抑制钛液界面反应的首选材料。综述了钛合金精密铸造用Y₂O₃型壳的研究现状,包括黏结剂、矿化剂、性能优化及制备工艺等方面的进展,分析了当前面临的挑战,并展望了未来的发展趋势。

关键词: 钛合金, 精密铸造, 陶瓷型壳, Y₂O₃, 黏结剂

CLC Number:

TG249.5

Xu Yan, Liu Chencan, Chen Bowen, Xu Weitai, Wang Fei, He Bo. Research status of yttria-based ceramic shell molds for precision casting of titanium alloys[J]. Refractories, 2026, 60(5): 443-448.

徐彦, 刘晨灿, 陈博文, 徐维台, 王飞, 何博. 钛合金精密铸造用Y₂O₃型壳研究进展[J]. 耐火材料, 2026, 60(5): 443-448.

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URL: http://www.nhcl.cn/EN/10.3969/j.issn.1001-1935.2026.05.012

http://www.nhcl.cn/EN/Y2026/V60/I5/443

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