Microstructure and mechanical behavior of Ti/Cu/Ti laminated composites produced by corrugated and flat rolling
(1. College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
2. Advanced Metal Composites Forming Technology and Equipment Engineering Research Center of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China;
3. TYUT-UOW Joint Research Center, Taiyuan University of Technology, Taiyuan 030024, China;
4. Department of Mechanical Engineering, Bauman Moscow State Technical University, Moscow 105005, Russia)
2. Advanced Metal Composites Forming Technology and Equipment Engineering Research Center of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China;
3. TYUT-UOW Joint Research Center, Taiyuan University of Technology, Taiyuan 030024, China;
4. Department of Mechanical Engineering, Bauman Moscow State Technical University, Moscow 105005, Russia)
Abstract: Ti/Cu/Ti laminated composites were fabricated by corrugated rolling (CR) and flat rolling (FR) method. Microstructure and mechanical properties of CR and FR laminated composites were investigated by scanning electron microscopy, numerical simulation methods, peel and tensile examinations. The effect of CR and FR was comparatively analyzed. The results showed that the CR and FR laminated composites exhibited different effective plastic strain distributions of the Ti layer and Cu layer at the interface. The recrystallization texture, prismatic texture and pyramidal texture were developed in the Ti layer by CR, while the R-Goss texture and shear texture were developed in the Cu layer by CR. The typical deformation texture components were developed in the Ti layer and Cu layer of FR laminated composites. The CR laminated composites had higher bond strength, tensile strength and ductility.
Key words: Ti/Cu/Ti laminated composites; corrugated rolling; flat rolling; bond strength; interfacial microstructure; finite element analysis