摘要:
The invention relates to a method for anticorrosion and antiwear treatment of an aluminium or aluminium alloy substrate, especially in the field of aeronautics, for protecting mechanical parts of aeroplanes or helicopters subjected to both corrosion and wear. According to the invention, the method comprises applying to the substrate (10): a step of sol-gel treatment forming a sol-gel layer (200); and, following the sol-gel treatment step, a step of hard oxidation forming a hard oxide layer (30).
摘要:
The invention relates to a device intended for implementation of an anodization treatment of a part, the device comprising: - a treatment chamber comprising a part to be treated and a counter electrode situated opposite the part to be treated, the part to be treated constituting a first wall of the treatment chamber, - a generator, a first terminal of the generator being electrically connected to the part to be treated and a second terminal of the generator being electrically connected to the counter electrode, and - a system for storage and circulation of an electrolyte, the system comprising: a storage tank, different from the treatment chamber, intended to contain the electrolyte, and an electrolyte circulation circuit intended to allow the electrolyte to flow between the storage tank and the treatment chamber.
摘要:
The invention relates to an aircraft engine part (1) comprising at least one metal substrate (2) and an erosion protective coating (3) present on the substrate, the coating comprising at least one phase (4) comprising at least chromium in an atomic content greater than or equal to 45% and carbon in an atomic content between 5% and 20%, said phase comprising chromium carbides Cr7C3 and Cr23C6. The invention also relates to a process for manufacturing such a part in which a coating composition is deposited on the part by electrodeposition and the part is heat treated at a temperature between 250°C and 700°C.