Abstract High current pulsed electron beam (HCPEB) was employed to irradiate cold spraying aluminum coating. The microstructures, tribological and corrosion behaviors of the untreated and irradiated samples were investigated by the X-ray diffraction (XRD), scanning electron microscope (SEM), ball-disc wear and electrochemical tests. HCPEB irradiation significantly triggered the surface remelting and densification of the coating texture. Compared with the original coating, the irradiated coating showed a higher hardness of up to 88 HV, a higher compressive stress value of 31 MPa and a lower wear rate of 1.06 × 10−4 mm3 N−1 m−1, but also exhibited an outstanding anti-corrosion performance, reflected by a higher polarization resistance and a smaller corrosion current density of 4.45 μA/cm2. These current findings confirmed that HCPEB irradiation shows a huge potential for enhancing the anti-corrosion and anti-wear properties of cold spray coatings.

中文翻译：

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大电流脉冲电子束辐照增强冷喷涂铝涂层抗磨防腐性能

摘要 采用高电流脉冲电子束（HCPEB）对冷喷涂铝涂层进行辐照。通过X射线衍射（XRD）、扫描电子显微镜（SEM）、球盘磨损和电化学测试研究了未处理和辐照样品的微观结构、摩擦学和腐蚀行为。HCPEB 辐照显着触发了涂层纹理的表面重熔和致密化。与原始涂层相比，辐照涂层的硬度高达 88 HV，压应力值更高，为 31 MPa，磨损率更低，为 1.06 × 10−4 mm3 N−1 m−1，但也表现出优异的防腐性能，体现在更高的极化电阻和更小的腐蚀电流密度（4.45 μA/cm2）。