Development of Creep Resistant TiAl Alloys for High Temperature Structural Applications

用于高温结构应用的抗蠕变钛铝合金的开发

• 批准号: ARC : LX0211249
• 负责人: Dr Kenong Xia
• 金额: $ 7.17万
• 依托单位: The University of Melbourne
• 依托单位国家: 澳大利亚
• 项目类别: Linkage - International
• 财政年份: 2002
• 资助国家: 澳大利亚
• 起止时间: 2002-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://researchdata.edu.au/development-creep-resistant-structural-applications/71786
• 关键词: Development; Creep; Resistant; TiAl; Alloys

Development of Creep Resistant TiAl Alloys for High Temperature Structural Applications. TiAl based alloys are being developed as high temperature structural materials for aerospace and automotive applications and thus their creep resistance (long-term strength at elevated temperatures) is critical. This project aims at developing creep resistant TiAl alloys through a combination of addition of rare earth and severe plastic deformation. It is expected that a refined and stablised microstructure consisting of submicron lamellar grains and nanosized lamellae be obtained. This will result in a highly creep resistant prototype TiAl material and leads eventually to the development of commercial TiAl alloys.

开发用于高温结构应用的抗蠕变钛铝合金。 TiAl 基合金正在被开发为航空航天和汽车应用的高温结构材料，因此其抗蠕变性（高温下的长期强度）至关重要。该项目旨在通过添加稀土和剧烈塑性变形相结合来开发抗蠕变 TiAl 合金。期望获得由亚微米层状晶粒和纳米级片层组成的细化且稳定的微观结构。这将产生高度抗蠕变的原型 TiAl 材料，并最终导致商业 TiAl 合金的开发。