铝合金机匣抗微动磨损涂层材料及其制备工艺研究进展

Research progress of anti-fretting wear coating materials for aluminum alloy casing and its preparation process

摘要:

微动磨损在航天航空领域的关键零部件中普遍存在，铝合金机匣作为航空发动机重要组成零件，因工作环境恶劣，易引起微动磨损，影响发动机正常工作，所以提高其抗微动磨损性能成为研究的重点．抗微动磨损材料主要分为软质材料和硬质材料，根据不同的工况条件选用合适的材料对防护微动磨损极为重要．表面涂覆技术是抗微动磨损的主要防护措施之一，常采用热喷涂、气相沉积和电镀等制备工艺在基体表面制备防护涂层，其制备效率高、涂覆层致密性高、与基体结合力强，在工程领域得到广泛的应用．全文针对抗微动磨损涂层材料及表面涂敷技术进行了阐述，并对抗微动磨损涂层的研究进行了展望．

Abstract:

Fretting wear is common in key parts in the aerospace industry. As an important component of aero-engines, aluminum alloy casings are prone to cause fretting wear due to the harsh working environment, which affects the normal operation of the engine. Improving its fretting wear resistance has become the focus of research. The anti-fretting wear materials are mainly divided into soft materials and hard materials. The selection of suitable materials according to different working conditions is extremely important to prevent fretting wear. Surface coating technology is one of the main protective measures against fretting wear. Thermal spraying, vapor deposition, and electroplating are often used to prepare protective coatings on the surface of the substrate, which has high preparation efficiency, high density of the coating layer, and strong binding force, widely used in the field of engineering. The full text introduces the anti-fretting wear coating materials and surface coating technology, and puts forward the future research prospects of anti-fretting wear coatings.