高温合金环形件环轧工艺研究进展

Research Progress on Ring Rolling Technology of Superalloy Ring Forging

高温合金因优良的综合高温性能在航空航天、石油化工等领域有广泛应用,高温合金环锻件主要用于机匣、燃烧室、密封环等部件。随着高性能航空发动机的发展,对高品质高温合金环锻件的需求日益增加。以往高温合金研究重点在于涡轮盘和叶片材料的合金优化设计、制备工艺和变形机理研究等,而对高温合金环锻件研究报道稍显薄弱。为此,本文总结了高温合金环形件环轧技术的发展、数值模拟在高温合金环轧技术探索中的应用、主要高温合金环锻件材料的种类以及高温合金环锻件组织控制的难点,以期为高品质高温合金环锻件的研发和制备提供一定的理论参考。

Superalloy exhibits excellent overall performance at high temperature.As a result,it is widely used in the field of aerospace,petrochemical engineering and so on.Superalloy ring forging is mainly used in the component of receiver,combustor,sealing ring,etc.With the development of high performance aero-engine,the demand of superalloy ring forging with high quality keeps increasing.Previously,most focus is put on superalloy used for turbine disks and blades.Related research is carried out on alloy design and optimization,manufacture technology and deformation mechanism.However,there is only limited work about superalloy ring forging.Hence,in the present work,the development of ring rolling technology of superalloy ring forging is summarized.The application of numerical simulation technique in manufacture process design of superalloy ring forging is discussed.The main superalloy used as ring forging is compared.At last,the difficulty in microstructure control during ring rolling process of superalloy is analyzed.This review work is made hoping to provide some theoretical guidance for the research and development of superalloy ring forging with high quality.