Erosion-resistant coating, preparation method of erosion-resistant coating and part coated with erosion-resistant coating
A technology of erosion resistance and covering parts, which is applied in the direction of coating, metal material coating process, sputtering plating, etc., can solve the problems of component erosion, cracks in the coating, and high brittleness, so as to improve the impact resistance The effect of erosion performance
Active Publication Date: 2021-02-02
AECC COMML AIRCRAFT ENGINE CO LTD
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Problems solved by technology
However, in actual use, the superhard coating does not achieve the desired protective effect, and the parts with ceramic coating are still severely eroded by sand and dust
Although the ceramic coating has high hardness, it is brittle and has low fracture toughness, which makes the coating prone to cracks when it is impacted by sand and dust particles.
Method used
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[0027] A variety of different implementations or examples for implementing the described subject technical solutions are disclosed below. In order to simplify the disclosure, the following describes the specific examples of each component and arrangement, of course, these are only examples, not limiting the protection scope of the present invention. For example, the description that the first feature described later in the description is formed on or above the second feature may include an embodiment in which the first and second features are formed through direct contact, and may also include an embodiment in which the first and second features are formed between the first and second features. Embodiments of additional features such that there may be no direct relationship between the first and second features. Additionally, reference numerals and / or letters may be repeated in different instances in these disclosures. This repetition is for brevity and clarity and does not i...
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Abstract
The invention provides an erosion-resistant coating, a preparation method of the erosion-resistant coating and a part coated with the erosion-resistant coating, and the preparation method of the erosion-resistant coating comprises the following steps that Ti elements and N elements are injected by using PIII&D and are deposited on the surface of a substrate to form a TiN coating; and Si elements are injected into the TiN coating by using the PIII&D, the shallow surface layer of the TiN coating is modified, a TiSiN layer is formed, and the erosion-resistant coating is obtained. In one or more embodiments of the preparation method, the TiN coating and the TiSiN layer are repeatedly prepared at least one time, so that the multi-layer erosion-resistant coating is obtained. According tothe preparation method, the erosion resistance of a hard coating is improved.
Description
technical field [0001] The present invention relates to an erosion-resistant coating, its preparation method and its covered parts. Background technique [0002] During the take-off, low-altitude flight and landing stages of the aircraft, foreign objects such as dust, sand and hail in the air will cause serious erosion to the fan and compressor blades under the action of the high-speed airflow suction generated by the engine, resulting in foreign object damage (Foreign Object Damage), affecting the mechanical properties of parts, overall structure and aerodynamic stability, reducing engine performance, and even causing engine failure. On the one hand, engine materials are prone to severe corrosion in marine environments, which affects the service life of fan and compressor blades and the safe operation of the engine. After the engine inhales foreign matter such as sand and dust, the sand and dust will wear the material and erode the blades. Under the action of corrosive liq...
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IPC IPC(8): C23C14/48C23C14/06C23C14/02
CPCC23C14/48C23C14/0641C23C14/022
Inventor 陆涛王杰王丽媛
Owner AECC COMML AIRCRAFT ENGINE CO LTD