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WC基热喷涂涂层被广泛应用于各种工业领域以改善组件的机械强度及增强基材的耐磨损耐腐蚀性能。超音速火焰喷涂方法制备的涂层具有涂层密度高、结合强度高等特点,而且在喷涂过程中粒子速度高,粒子的沉积温度相对较低,因而具有较低的“脱碳”现象,被人们视为优异的涂层制备技术。通过与不同化学元素合金化的方法制备了多种类型的碳化钨金属陶瓷,以提高其在超音速火焰喷涂方法制备下的耐腐蚀和耐冲刷腐蚀性能,从而满足各种工业应用需求,如石油和天然气工业。本文通过对石油和天然气工业使用环境条件下的模拟,对三种类型的碳化钨硬质合金涂层的电偶序和耐冲刷腐蚀性以及三种不同的密封技术进行了比较。以期获得在特定应用条件下选择最优涂层的相关知识。
WC-based thermal spray coating is widely used in various industrial fields to improve the mechanical strength of components and enhance the wear-resistant corrosion resistance of the substrate. The coating prepared by supersonic flame spraying method has the characteristics of high coating density and high bonding strength, and has the characteristics of lower “decarburization” because of the high particle velocity and the relatively low deposition temperature of the particles during the spraying process, Be regarded as excellent coating preparation technology. Various types of tungsten carbide cermets have been prepared by alloying with various chemical elements to improve their corrosion and erosion resistance under the supersonic flame spray process to meet a variety of industrial applications such as petroleum And natural gas industry. This article compares the galvanic sequence and erosion erosion resistance of three types of tungsten carbide coatings with three different sealing technologies by simulating the environmental conditions used in the oil and gas industry. In order to obtain the knowledge of choosing the optimal coating under the specific application conditions.