感应熔覆制备镍基合金涂层的研究进展

发布时间：2018-06-24 19:59

本文选题：表面热处理技术 + 熔覆涂层　；参考：《表面技术》2017年09期

【摘要】：在实际的工业应用中,大部分工件处于交变载荷、高应力以及强腐蚀的环境中,严峻的服役条件将会大大缩短工件的实际使用寿命。工件表面往往直接接触不利因素,所以工件的整体失效基本是从表面开始。熔覆涂层技术是一种常见的金属材料表面处理技术,可以大幅度改善工件表面性能,且具备生产效率高、生产成本低、可获得大面积熔覆层等优点,受到了人们的广泛关注。熔覆涂层的制备技术主要有激光熔覆、氩弧熔覆、等离子熔覆以及高频感应熔覆。其中,高频感应熔覆技术的应用成本较低。以高频感应熔覆技术为支撑,对高频感应熔覆技术路线进行阐述,主要包括预处理、涂层预制、感应熔覆等,并对各过程中可能对熔覆质量造成影响的因素进行阐述。最后对镍基合金涂层(镍基复合涂层、原位合成制备镍基复合涂层)的制备工艺进行综述,并对制备过程中存在的部分问题及今后的发展方向进行综述。
[Abstract]:In practical industrial application, most of the workpieces are in the environment of alternating load, high stress and strong corrosion, and the severe service conditions will greatly shorten the actual service life of the workpiece. The surface of the workpiece is often directly exposed to adverse factors, so the overall failure of the workpiece starts from the surface. Cladding coating technology is a common surface treatment technology for metal materials, which can greatly improve the surface properties of workpieces, and has the advantages of high production efficiency, low production cost, large area cladding layer and so on. Laser cladding, argon arc cladding, plasma cladding and high frequency induction cladding are the main preparation techniques of cladding coatings. The application cost of high frequency induction cladding is low. Based on the technology of high frequency induction cladding, the technical route of high frequency induction cladding is described, including pretreatment, coating prefabrication, induction cladding and so on, and the factors which may affect the quality of cladding in each process are expounded. Finally, the preparation process of nickel-based alloy coating (Ni-base composite coating, in situ synthesis of Ni-base composite coating) is reviewed, and some problems in the preparation process and the future development are reviewed.
【作者单位】：重庆大学机械工程学院;重庆大学材料科学与工程学院;
【分类号】：TG174.44

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