Effect of processing parameters on the microstructure and mechanical properties of TiAl/Ti2AlNb laminated composites

•TiAl/Ti2AlNb laminated composites have been successfully fabricated under different processing parameters.•The defect, microstructure, phase transformation, interface, mechanical properties and fracture behaviors are carefully investigated.•The composite fabricated at 1050 °C/2 h/65 MPa performs the best comprehensive performances.•The special laminated structure and well-coordinated deformation ability endow the composite with brilliant mechanical properties.