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Electroless Plating of Ni-Fe-P Alloy and Corrosion Resistance of the Deposit

Senlin WANG

材料科学技术（英文）

Electroless Ni-Fe-P alloys in an alkaline bath were plated. The effects of deposition parameters on the plating rate and the coating composition were examined. The weight loss test and the anodic polarization measurement of the deposits in 3.5 wt pct NaCl solution (pH7.0) showed that the deposits with the mole ratio of NiSO¬4/FeSO¬4 being 0.07:0.03, pH8.0 and 7.5 possess better corrosion resistance than that of the other deposits and the Ni-Fe-P deposits did not form passive films in this environment. In 5.0 wt pct NaOH solution, the Ni-Fe-P deposits have better corrosion resistance and formed passive films.

关键词: Nickel , null , null , null

Effect of Addition of Polytetrafluoroethylene (PTFE) and Silicon Carbide (SiC) on Properties of Electroless Nickel Alloy Coatings

材料热处理学报

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Direct Electroless Nickel Plating on AZ91D Magnesium Alloy from a Sulfate Solution and its Deposition Mechanism

材料热处理学报

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镁合金表面Ni-P/Ni镀层的制备与性能研究

许刚 , 张秀芝 , 张义帅

表面技术 doi:10.3969/j.issn.1001-3660.2010.01.019

在镁合金表面先化学镀Ni-P层,再电镀Ni,获得高耐蚀性Ni-P/Ni镀层,并用静态腐蚀浸泡法研究了化学镀时间和电镀时间对所得镀层在5%NaCl溶液中的耐蚀性能的影响.结果表明,先化学镀40 min,再电镀15 min所得的Ni-P/Ni镀层具备高耐蚀性能,电化学测试结果表明,此种镀层在酸性和碱性溶液中都具有较好的耐蚀性能.在200 ℃热处理24 h后,Ni-P/Ni镀层的耐蚀性提高,同时外层Ni层的显微硬度从HV460增大到HV550.镀层侧面的SEM照片显示,镀层均匀致密,与基体结合良好,化学镀层与电镀层之间没有明显的界限.

关键词: 双镀层 , 化学镀 , 电镀 , 镀镍 , 热处理

稀有金属（英文版） doi:10.1007/s12598-015-0564-8

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