▎ 摘　　要

In this paper, the interfacial microstructure and damping behavior of the novel graphene oxide/TiNi laminate composite sheet (GO/TiNi) were characterized. Results showed that the well-bonded GO/TiNi interface and alternating laminate structure were obtained in the composite sheet. The continuous reaction layer adjacent to the TiNi matrix was detected as the Ti2Ni phase with cubic structure, and the reaction layer near the GO was confirmed as the TiC nanocrystalline. The rhombohedral Ni4Ti3 phase could be tracked to precipitate within the TiNi matrix. Compared with the TiNi alloy and TiNi laminate sheet without GO, the GO/TiNi laminate composite sheet has the optimal intrinsic damping capacities with the tan delta(martensite) of 0.089 and tan delta(austenite) of 0.034, which are attribute to the effective introduction of the high damping GO reinforcement.