Cutting tools have been employed in wood processing must be corrosion and wear resistant due to the acidic composition of wood and the wear generated during cutting, which lead to the deterioration of steel saws. Hydrogenated amorphous carbon films possess mechanical, tribological and barrier properties that can increase the hardness, wear and corrosion resistance of this type of tool. This work has involved an investigation of the effectiveness of plasma-deposited amorphous carbon thin films in protecting commercial carbon steel saws. Before deposition, the substrates were sputter-cleaned in argon plasma (19.27 Pa; 50 W) for 180 s. The films have been deposited using acetylene and argon mixtures excited by a radio frequency power supply (13.56 MHz, 70 W). The concentration of acetylene in the mixture has been varied in the inverse proportion to that of argon so as to maintain a constant total gas pressure of 1.8 Pa. The deposition time was 3600 s. The chemical behavior of the coated saws have been evaluated by electrochemical impedance spectroscopy (EIS) and polarization curves.Surface images of the plasma-coated samples have been recorded by scanning electron microscopy (SEM). The results have indicated that the plasma treatment has increased the corrosion resistance of carbon steel samples in acidic solutions.

中文翻译：

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乙炔等离子体处理的商品钢样品的电化学表征

木材加工中使用的切削工具由于木材的酸性成分以及切削过程中产生的磨损而必须具有抗腐蚀和耐磨性，从而导致钢锯的劣化。氢化无定形碳膜具有机械，摩擦和阻挡性能，可提高此类工具的硬度，耐磨性和耐腐蚀性。这项工作涉及对等离子体沉积非晶碳薄膜在保护商用碳钢锯中的有效性的研究。沉积之前，将基板在氩气等离子体（19.27 Pa; 50 W）中溅射清洗180 s。使用由射频电源（13.56 MHz，70 W）激发的乙炔和氩气混合物沉积薄膜。混合物中乙炔的浓度与氩气浓度成反比，以保持恒定的总气压为1.8 Pa。沉积时间为3600 s。通过电化学阻抗谱（EIS）和极化曲线评估了涂层锯的化学行为。通过扫描电子显微镜（SEM）记录了等离子体涂层样品的表面图像。结果表明，等离子体处理提高了碳钢样品在酸性溶液中的耐腐蚀性。已经通过扫描电子显微镜（SEM）记录了等离子体涂覆的样品的表面图像。结果表明，等离子体处理提高了碳钢样品在酸性溶液中的耐腐蚀性。已经通过扫描电子显微镜（SEM）记录了等离子体涂覆的样品的表面图像。结果表明，等离子体处理提高了碳钢样品在酸性溶液中的耐腐蚀性。