Abstract:Graphite is widely used in aerospace, nuclear energy, and electronic heat dissipation due to its many excellent properties, and it plays an increasingly important role in modern industry. Achieving reliable connections among graphite, alloys, and metals is of great significance for achieving complementary performance of heterogeneous materials and expanding application fields. However, there are some urgent problems to be solved in the welding process between graphite and dissimilar materials, mainly including poor wetting of the brazing material, control of formation of brittle phases at interface, and alleviation of interface stress. This study reviews the research progress on brazing of graphite, alloys, and metals, and elaborates on the effects of direct and indirect brazing methods on the joint performance of graphite and metals. It focuses on analyzing the solutions to the problem of poor wetting of graphite using various brazing methods, and finally provides prospects for the connection of dissimilar materials.