摘要
TiAl合金作为新一代轻质高温结构材料,具有优异的高温性能,在航空发动机等领域具有重要应用前景。但是TiAl合金具有本征脆性,热加工窗口窄,热变形易开裂,限制了其广泛应用。回顾了TiAl合金的发展历程,综述了其热变形行为以及高温锻造、高温轧制和热挤压等热加工技术,并指出了TiAl合金热加工未来发展方向。
As a new generation of high temperature structural material with low density,TiAl alloy has excellent high temperature properties,exhibiting important application prospects in aerospace and other fields.However TiAl alloy has inherent brittleness,soitshot working window is narrow and it is easy to crack while hot working,which limits its wide applications.In this paper,the development history of TiAl alloy is reviewed,andits hot deformation behavior and hot working technologies such as high temperatureforging,high temperaturerolling and hot extrusionaresummarized,simultaneously the future development direction is also pointed out.
作者
张来启
葛庚午
林均品
ZHANG Lai-qi;GE Geng-wu;LIN Jun-pin(State Key Laboratory for Advanced Metals and Materials,University of Science and Technology Beijing,Beijing 100083,China)
出处
《精密成形工程》
北大核心
2022年第11期1-9,共9页
Journal of Netshape Forming Engineering
基金
国家自然科学基金(面上项目,重点项目,重大项目)(51871012,52071021)。
