Reliable joining of TiAl and Ti 2 AlNb alloys, pivotal for high-temperature aerospace applications, remains challenging due to their structural and chemical disparities, which often result in brittle interfacial phases and degraded mechanical performance. This study introduces a synergistically engineered Ti-based interlayer for pulsed-current diffusion bonding (PCDB), enabling high-strength joints with exceptional stability across ambient and elevated temperatures. The interlayer, featuring a metastable β matrix and multi-element solid soluti...
