风沙环境的侵蚀和劣化作用严重影响着基础设施的安全耐久性.本文根据风沙环境特点,利用气流挟沙喷射法对钢结构涂层进行冲蚀试验,研究了涂层在风沙环境下的冲蚀磨损特性、冲蚀行为和侵蚀机理.结果表明:涂层磨损量随沙剂量和冲蚀速度的增加而增加;侵蚀机理为在低角度冲蚀下,涂层主要受微切削作用,而在高角度冲蚀下,主要受冲蚀挤压变形作用,由于涂层强度低而韧性较好,其在低角度冲蚀下的磨损更为严重. The erosion and deterioration of wind-blown environment seriously affect the safety and durability of the infrastructure.Based on the characteristics of the wind-blown environment, the paper studies the erosion of the steel structure coating by the sand-jet method using airflow, and studies the erosion of the coating under the wind-blown environment Wear behavior, erosion behavior and erosion mechanism.The results show that the wear amount of coating increases with the increase of sand dosage and erosion rate, the erosion mechanism is that the coating is mainly subjected to micro-cutting under low angle erosion, Under the erosion of angle, it is mainly affected by erosion and extrusion deformation. Due to the low strength and toughness of the coating, the wear of the coating is more serious under low angle erosion.