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首页> 外文期刊>International Journal of Electrochemical Science >Improvements in Wear and Corrosion Resistance of RB400 Anchor Rod Steel by Electroless Ni-P Plating
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Improvements in Wear and Corrosion Resistance of RB400 Anchor Rod Steel by Electroless Ni-P Plating

机译：化学镀Ni-P改善RB400锚杆钢的耐磨性和耐蚀性

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Engineering components with high wear and corrosion resistant surfaces are essentially required tomeet the ever-increasing demands for rapid developments of engineering applications upon thesubjections to complex and/or harsh conditions. For example, there are needs for supporting anchorrods in to resist both corrosion and wear attacks during operation. In the present work, electrolessplating was employed to prepare Ni-P coating on RB400 steel for improving surface performance andincreasing usage of anchor rod in bracing project. Surface and cross-section morphologies of theobtained coating were measured by scanning electron microscope (SEM) and optical microscope(OM). Phase constitution and sectional element distribution were analyzed by X-ray diffraction (XRD)and glow discharge optical emission spectrometry (GDOES). A ball-on-disc type tribometer andelectrochemical workstation were applied to make comparative evaluations on wear and corrosionresistance of anchor rod steel and Ni-P coating, respectively. The results showed that uniform andcompact Ni-P coating was formed on RB400 steel anchor rod substrate. The surface hardness ofsubstrate had tripled after electroless plating treatment. The obtained Ni-P coating indicated goodantifriction effect and possessed excellent wear resistance, which was validated by friction coefficient,mass loss and worn-out appearance. The Ni-P coating exhibited higher corrosion potential and lowercorrosion current density in comparison with bared anchor rod. The surface performance of anchor rodsteel was significantly improved by Ni-P coating.
机译：基本要求具有高耐磨和耐腐蚀表面的工程部件，以满足在复杂和/或苛刻条件下对工程应用快速发展的不断增长的需求。例如，需要支撑锚杆以抵抗操作期间的腐蚀和磨损。在目前的工作中，采用化学镀在RB400钢上制备Ni-P涂层，以改善表面性能并增加支撑工程中锚杆的使用。通过扫描电子显微镜（SEM）和光学显微镜（OM）测量获得的涂层的表面和截面形态。通过X射线衍射（XRD）和辉光放电光发射光谱法（GDOES）分析了相组成和截面元素分布。采用圆盘摩擦计和电化学工作站分别对锚杆钢和Ni-P涂层的耐磨性和耐蚀性进行比较评估。结果表明，在RB400钢锚杆基体上形成了均匀致密的Ni-P涂层。化学镀处理后，基材的表面硬度增加了两倍。所获得的Ni-P涂层具有良好的减摩效果，并具有优异的耐磨性，这由摩擦系数，质量损失和磨损外观证实。与裸露的锚杆相比，Ni-P涂层显示出更高的腐蚀电势和更低的腐蚀电流密度。 Ni-P涂层显着改善了锚杆的表面性能。

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