Microstructure and property of the composite laminate cladded by explosive welding of CuAlMn shape memory alloy and QBe2 alloy

Microstructure and properties of the composite laminate cladded by explosive welding of CuAlMn and QBe2 alloy have been evaluated. The melting zone is almost encountered in full interface of the cladded materials. As it is aged at 350 °C for 20 min and at 430 °C for 5 min prior to solution-treatment at 770 °C for 3 min, the internal friction of the laminate is 16 × 10−3 below 125 °C and reaches a maximum of 28 × 10−3 at 140 °C. σ0.01, σ0.2 and σb are 460 Mpa, 935 Mpa and 1087 Mpa, respectively. The fracture mechanism of the composite showed predominantly quasi-cleavage and cleavage modes.