Research Status of Cast Mg–RE Alloy and Its Application Prospect in Aero-Engine

doi:10.16080/j.issn1671-833x.2022.03.014

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Research Status of Cast Mg–RE Alloy and Its Application Prospect in Aero-Engine

更新时间：2025-07-30

- Research Status of Cast Mg–RE Alloy and Its Application Prospect in Aero-Engine
- Aeronautical Manufacturing Technology Vol. 65, Issue 3, (2022)
- 作者机构：
  
  1. 上海交通大学轻合金精密成型国家工程研究中心,上海,200240
  2. 金属基复合材料国家重点实验室,上海,200240
  3. 扬州峰明光电新材料有限公司,扬州,225117
  4. 上海航天精密机械研究所,上海,201600
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2022.03.014
  CLC：
- Published：2022
- 稿件说明：
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吴国华，童鑫，眭怀明，魏广玲，肖旅. 铸造镁稀土合金研究现状及其在航空发动机领域应用展望[J]. 航空制造技术, 2022, 65(3): 14-29.

WU Guohua，TONG Xin，SUI Huaiming，WEI Guangling，XIAO Lü. Research Status of Cast Mg–RE Alloy and Its Application Prospect in Aero-Engine[J]. Aeronautical Manufacturing Technology, 2022, 65(3): 14-29.
吴国华，童鑫，眭怀明，魏广玲，肖旅. 铸造镁稀土合金研究现状及其在航空发动机领域应用展望[J]. 航空制造技术, 2022, 65(3): 14-29. DOI： 10.16080/j.issn1671-833x.2022.03.014.

WU Guohua，TONG Xin，SUI Huaiming，WEI Guangling，XIAO Lü. Research Status of Cast Mg–RE Alloy and Its Application Prospect in Aero-Engine[J]. Aeronautical Manufacturing Technology, 2022, 65(3): 14-29. DOI： 10.16080/j.issn1671-833x.2022.03.014.

摘要

镁稀土合金密度低、比强度与比刚度高、耐热性能好、阻尼减振性优良，将其应用到航空发动机部件能实现装备减重、系统降噪，大幅提升飞行器的载重量和机动性能。首先对铸造镁稀土合金分类进行了介绍，阐述了不同镁稀土合金的强韧化机制；系统总结了镁稀土合金的各类铸造成型工艺并分析了其对合金组织性能的影响；然后归纳了现有航空发动机适航标准及通用标准规范中对镁合金的使用要求，概述了铸造镁稀土合金在国内外多种型号航空发动机及其他航空航天部件上的应用现状；最后面向实际工程应用需求，对航空发动机用镁稀土合金存在的问题及发展趋势进行了总结与展望。

Abstract

Magnesium rare-earth (Mg – RE) alloys exhibit the advantages of low densities

high specific strength and specific stiffness

desirable heat resistance

and good damping properties. The application of Mg–RE alloys in the aero-engine components can effectively reduce the equipment weight and system noise

improve the load capacity and maneuverability of aircraft. In this article

the classification of cast Mg–RE alloys is first introduced with different strengthening mechanisms. Various casting processes are reviewed and their effects on the microstructure and properties of Mg–RE alloys are also analyzed. Then the requirements for the use of Mg alloys in the existing aero-engine airworthiness standards and general standards are summarized

following by the application status of casting Mg–RE alloys in aero-engine and some other aerospace components at home and abroad. Finally

the problems and development trends of Mg–RE alloys used in aero-engine are discussed according to the actual engineering application requirements.

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