| 碘酸钾对Q235钢Ni-P化学镀层的影响 |
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| 引用本文： | 梁平,史艳华. 碘酸钾对Q235钢Ni-P化学镀层的影响[J]. 材料保护, 2010, 43(1) |
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| 作者姓名： | 梁平 史艳华 |
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| 作者单位： | 辽宁石油化工大学机械工程学院,辽宁,抚顺,113001;辽宁石油化工大学机械工程学院,辽宁,抚顺,113001 |
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| 摘 要： | 目前,有关无机物对化学镀沉积速度和镀层性能的影响鲜见报道.为此,在Ni-P化学镀液中加入碘酸钾(KIO_3),研究了其对Q235钢表面Ni-P化学镀层沉积速度和表面质量的影响.采用金相显微镜观察了镀层的表面和截面形貌,并考察了镀层的显微硬度和耐蚀性.结果表明:KIO_3提高了Ni-P合金层在Q235钢表面的沉积速度,当KIO_3含量为20 mg/L时,沉积速度达到最大;KIO_3使组成Ni-P镀层的胞状物变得更加细小,表面更加平整、致密,同时使Ni-P镀层的表面硬度略有提高,进一步改善了镀层在3.5%NaCl溶液中的耐蚀性.
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| 关 键 词： | Ni-P化学镀 碘酸钾 Q235钢 镀层 耐蚀性 硬度 |
Effect of KIO_3 on Corrosion Resistance of Electroless Ni-P Coating on Q235 Steel |
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| LIANG Ping,SHI Yan-hua. Effect of KIO_3 on Corrosion Resistance of Electroless Ni-P Coating on Q235 Steel[J]. Journal of Materials Protection, 2010, 43(1) |
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| Authors: | LIANG Ping SHI Yan-hua |
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| Affiliation: | HANG Ping,SHI Yan-hua (School of Mechanical Engineering,Liaoning University of Petroleum , Chemical Engineering,Fushun 113001,China) |
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| Abstract: | KIO3 was introduced in the plating bath of electroless Ni-P alloy coating to increase the deposition velocity and improve quality of the coating.The effect of adding KIO3 on the platingrate and surface quality of electroless Ni-P coating on Q235 steel was investigated.The surface and cross-sectional morphologies of the coating were observed by using an optical microscope,and the microhardness and corrosion resistance of the coating were exam-ined as well.Results show that KIO3 accelerates the deposition of ... |
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| Keywords: | Ni-P electroless plating KIO_3 Q235 steel coating corrosion resistance microhardneas |
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