s/σb）增大，這些均導(dǎo)致了復(fù)合板的沖壓成形性能變差。對(duì)于層數(shù)較少的復(fù)合板，在斷裂過(guò)程中界面脫粘起了主要作用。由于界面結(jié)合不佳，界面易發(fā)生分層，通過(guò)抑制裂紋萌生、促進(jìn)裂紋偏轉(zhuǎn)和鈍化、降低裂紋擴(kuò)展的驅(qū)動(dòng)力，有效地延緩了復(fù)合板的斷裂失效。;Ti/Al layered metal composites (LMCs) with 3, 5 and 7 layers were prepared via hot-pressing followed by hot-rolling at 500 °C. The crack initiation and growth behavior in LMCs during tensile and Erichsen cupping tests were explored. The influence mechanism of interface constraint on the mechanical performance and stamping formability of LMCs was analyzed. Results show that LMCs exhibit strong interfacial bonding due to intermetallic phase with micron-scale thickness. As the layers of LMCs increase, their yield strength (YS) and ultimate tensile strength (UTS) increase accompanied with the reduction in the elongation (EL) and toughness, and their anisotropy of mechanical performance increases obviously due to the strong basal texture formed by hot-rolling. Meanwhile, both the work-hardening exponent (n) and plastic strain ratio (r) decrease, but the yield strength ratio (σs/σb) increases, which deteriorates the stamping formability of LMCs. Interfacial delamination plays a crucial role in the fracture for LMCs with fewer layers. The interface is prone to delamination because of poor interfacial bonding, which delays the fracture failure of LMCs by inhibiting crack initiation, promoting crack deflection and passivation, and reducing the driving force of crack propagation."/>