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首页> 外文期刊>Applied Surface Science >Obtaining tailored surface characteristics by combining shot peening and electropolishing on 316L stainless steel
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Obtaining tailored surface characteristics by combining shot peening and electropolishing on 316L stainless steel

机译：通过对316L不锈钢进行喷丸处理和电抛光处理，获得定制的表面特性

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摘要

Shot peening is a well-established surface treatment commonly used to improve mechanical properties of material's surfaces. Studies have shown notable enhancement of fatigue strength, wear, scratch and corrosion resistance and fretting properties as a result of an intensive shot peening treatment, the so-called severe shot peening. Nevertheless, this process has some drawbacks including quite high surface roughness and possible embedment of shot residuals at the treated surface, which can have adverse effects depending on the final application. In this paper, electropolishing has been evaluated as a cleaning post-treatment for shot peened surfaces of 316L stainless steel. For this purpose, electropolishing voltage has been varied with the aim of obtaining clean and smoother surfaces without sacrificing the mechanical improvements produced by shot peening. The treated surfaces have been characterized considering surface roughness, morphology, wettability, residual stresses and microhardness evolution after various shot peening treatments combined with electropolishing using different parameter set-ups to identify the most promising combinations.
机译：喷丸处理是一种公认​​的表面处理方法，通常用于改善材料表面的机械性能。研究表明，由于进行了强化喷丸处理，即所谓的严重喷丸处理，疲劳强度，耐磨性，耐刮擦性，耐腐蚀性和微动磨损性能显着提高。然而，该方法具有一些缺点，包括相当高的表面粗糙度和可能在处理表面上嵌入粒状残留物，这取决于最终应用可能具有不利影响。在本文中，电抛光已被评估为316L不锈钢喷丸表面的清洁后处理。为此目的，已经改变了电抛光电压，目的是获得清洁和光滑的表面而不牺牲喷丸处理产生的机械性能。考虑到表面粗糙度，形态，润湿性，残余应力和显微硬度的变化，经过处理的表面经过各种喷丸处理并结合电抛光后使用不同的参数设置来确定最有前途的组合，从而对表面进行了表征。

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