Ti/Al3Ti层状复合材料构件在航空航天、防护装甲、新型武器装备等领域具有重要的意义。在Ti/Al3Ti层状复合构件的两种制造方法中，Ti/Al以及Ti/Al3Ti的塑性成形不仅是必要的环节，而且存在共性问题。然而，两种材料在塑性成形过程中，易出现塑性失稳及界面开裂等问题。 本项目以Ti/Al以及Ti/Al3Ti为研究对象，首先研究材料塑性变形过程中的层间协同变形机制；其次，研究具有初始变形量的Ti/Al热压过程中界面相生成机理以及热力耦合作用下的Ti/Al3Ti界面相转变机理。另外，研究Ti/Al及Ti/Al3Ti层状复合材料成形过程中的界面变化机制、裂纹扩展规律以及缺陷调控方法。本项目着重研究Ti/Al以及Ti/Al3Ti层状复合材料塑性变形的微观机理，为Ti/Al3Ti层状复合构件的后续塑性成形提供理论支撑和工艺优化依据。

Ti/Al3Ti laminate parts play very important roles in the field of aerospace, guard armour and neotype weapons. The plastic forming of Ti/Al and Ti/Al3Ti laminate composites is a necessary procedure to prepare Ti/Al3Ti laminate parts by two typical methods. However, plastic instability and interface cracking may occur during the plastic deformation of the composites. In this project, Ti/Al and Ti/Al3Ti laminates are selected as the research subject. Firstly, the coordinate deformation mechanism of the laminates is to be explored. Secondly, Ti/Al laminates with the initial deformation are employed to examine the generation of new phases at the interface during the hot compression process. Furthermore, the phase transformation mechanism is also investigated under thermo-mechanical coupling effects. Moreover, interface variation, crack initiation and propagation, and how to control interfacial defects are also studied during the deformation of Ti/Al and Ti/Al3Ti laminates. In general, this project mainly focuses on the micro mechanism of plastic deformation for Ti/Al and Ti/Al3Ti composites, providing solid theoretical support and process optimization basis for the fabrication of Ti/Al3Ti complicated parts.