A TiN interlayer with high electrical conductivity was prepared between the GH3535 alloy and the Ni coating as a diffusion barrier to elements interdiffusion with the goal of increasing the corrosion resistance of GH3535 alloy in molten FLiNaK salt at 700 ℃. Results indicated that Ni coating could be directly electroplated on the TiN coated GH3535 alloy without extra conductive transition layer. TiN layer showed excellent thermal and chemical stabilities at elevated temperature in this molten salt system, without phase decomposition. The Ni/TiN composite coating was stable enough to resist corrosion in LiF-NaF-KF molten salt at 700 ℃. Elements interdiffusion between the substrate and Ni coating could be effectively inhibited and the corrosion resistance of the alloy was greatly enhanced. Besides, the TiN interlayer remained continuous and well adhered to the Ni coating as well as the substrate after corrosion test.

在GH3535合金和Ni涂层之间制备了高电导率的TiN中间层，作为对元素相互扩散的扩散阻挡层，目的是提高GH3535合金在700℃的熔融FLiNaK盐中的耐腐蚀性。结果表明，Ni涂层可以直接电镀在TiN涂层GH3535合金上，而无需额外的导电过渡层。TiN层在此熔融盐体系中在高温下表现出出色的热和化学稳定性，而不会发生相分解。Ni / TiN复合涂层的稳定性足以抵抗700℃的LiF-NaF-KF熔盐的腐蚀。可以有效地抑制基体与Ni涂层之间的元素相互扩散，大大提高了合金的耐蚀性。除了，