Loading patent…
AssigneeChangsha University of Science and Technology
InventorsWei LI, Yilin ZHAO, Jian CHEN, Yanjie REN, Jianjun HE, Jianlin CHEN
Estimating the term…
The invention discloses a molten Al—Si alloy corrosion resistant composite coating and a preparation method and application thereof. The composite coating layer comprises an aluminized layer and a TiO2 thin film layer from the surface of a basal body to the external in sequence. The preparation method of the coating layer comprises the following steps: (S1) the surface of a Fe-based alloy is treated; and then, a solid powder permeating agent is adopted to permeate aluminum; (S2) sand-blasting the aluminized Fe-based alloy; (S3) the Fe-based alloy is washed and dried after sand blasting; and (S4) a TiO2 thin film layer is deposited on the surface of the dried aluminized Fe-based alloy by adopting an atomic layer vapor deposition method.
A molten Al—Si alloy corrosion resistant composite coating, wherein the composite coating comprises an aluminized layer and a TiO2 thin film layer from a surface of a substrate to the outside in sequence, the composite coating further comprises an Al2O3 thin film layer prepared by an atom layer vapor deposition, and the Al2O3 thin film layer is located between the TiO2 thin film layer and the aluminized layer, the Al2O3 thin film layer has a nano-scale thickness.
(canceled)
Dependencies are inferred from the claim text.