Surface Treatment Using Waterjet Technology and Tribological Applications

Dear Colleagues,

As is well known, surface quality is usually characterized by roughness, integrity, and residual stress, and plays an extremely important role in determining the lubricity, wear, corrosion resistance, and fatigue strength of engineering components. Thus, treatments should be performed to improve the surface quality, as well as the performance and service life of a product. Over the years, various methods for surface treatment have been proposed and investigated, among which waterjet technology has attracted much attention from academic and industrial communities. Waterjet technology includes but not is not limited to devices such as the pulsed waterjet, cavitating waterjet, and abrasive waterjet. By taking advantage of the impact of the high-speed waterjet, abrasive particles, and collapse of cavitation bubbles, the materials can be removed to shape a certain profile, the surface roughness can be reduced, or the surface can be strengthened by creating compressive residual stress. Nowadays, waterjet technology has been recognized as one of the most promising methods for surface treatment, and it is rather suitable for processing workpieces of complex geometries. Moreover, the process of treating a surface with a waterjet creates no heat, which is perfectly suitable for thermal-sensitive materials, and the process is economical and environmentally friendly.

In this Special Issue, we would like to assemble a collection of research and review papers focusing on surface treatment using the pure waterjet, pulsed waterjet, cavitating waterjet, other fluid jets, or technologies combining different waterjets. Contributions on the mechanical or lubricant properties of components treated with the above methods (e.g., the effect of surface roughness created by a waterjet on boundary lubrication and the Gaussian or non-Gaussian nature of the developed/created surfaces) are also welcome in this Special Issue.

Dr. Deng Li
Dr. Zhenlong Fang
Guest Editors

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• surface roughness
• surface peening
• surface strengthening
• polishing
• waterjet
• boundary lubrication
• surface quality
• residual stress
• mechanical property
• surface treatment
• cavitation
• gaussian or non-gaussian nature of the developed/created surfaces