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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Electrodeposition, characterization and corrosion behavior of Ni-Si _3N _4 composites
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Electrodeposition, characterization and corrosion behavior of Ni-Si _3N _4 composites

机译：Ni-Si _3N _4复合材料的电沉积，表征和腐蚀行为

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摘要

Ni and its composite (Ni-Si _3N _4) electrodeposits were successfully obtained on mild steel substrate by the electrodeposition technique. The presence of Si _3N _4 particles in the deposit was analyzed by an energy dispersive x-ray diffraction (EDAX) spectrometer. The structure and surface morphology of the coatings were analyzed with x-ray diffraction (XRD) and scanning electron microscopy. The changes in the preferred orientation of nickel in the presence of Si _3N _4 particles were obtained by calculating the texture coefficient from XRD data. The hardness of the deposit was measured using a Vickers microhardness indenter. The antifriction properties of deposits were also discussed. The corrosion behavior of the bare Ni and its composite coatings in 3.5% NaCl were analyzed by polarization and impedance techniques.
机译：通过电沉积技术成功地在低碳钢基底上获得了Ni及其复合物（Ni-Si _3N _4）电沉积物。通过能量色散X射线衍射（EDAX）光谱仪分析了沉积物中Si_3N_4颗粒的存在。用X射线衍射（XRD）和扫描电子显微镜分析涂层的结构和表面形态。通过从XRD数据计算织构系数，可以获得在存在Si _3N _4颗粒时镍的优选取向的变化。使用维氏显微硬度计测量沉积物的硬度。还讨论了沉积物的减摩性能。通过极化和阻抗技术分析了裸露的镍及其复合涂层在3.5％NaCl中的腐蚀行为。

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