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酸性化学镀Ni-Zn-P工艺的研究 被引量:6

Study of Electroless Ni-Zn-P Alloy Plating from Acidic Bath
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摘要 研究了硫酸锌、添加剂和pH值对镀层沉积速率及镀层腐蚀电位的影响。测试了镀层在质量分数为3.5%的NaCl溶液中的Tafel曲线;用电化学阻抗实验对镀层的耐蚀性进行了测试。研究结果表明:镀层在质量分数为3.5%的NaCl溶液中,相对甘汞电极的腐蚀电势为-0.6009V,比化学镀Ni-P合金镀层的腐蚀电势-0.343V低258mV。 The electroless Ni-Zn-P alloy deposit was prepared from a sulphate bath. The effects of the process parameters (Zn2+ and additive concentration, pH) on the plating rate and coating corrosion potential were examined. Tafel plot of the deposit was tested in the mass fraction of 3.5 % sodium chloride solution. Corrosion resistance of the deposit was evaluated by electrochemical impedance methods. The results show that when in the mass fraction of 3.5 % Sodium chloride solution, the coating corrosion potential is --0. 600 9 V vs. SCE, 258 mV lower than the corrosion potential of electroless Ni-P alloy.
出处 《电镀与环保》 CAS CSCD 北大核心 2009年第2期39-42,共4页 Electroplating & Pollution Control
关键词 化学镀 镍-锌-磷合金 沉积速率 耐蚀性 electroless plating Ni-Zn-P alloy plating rate corrosion resistance
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  • 1Oulladj M, Saidi D, Chassaing E, et al. Preparation and properties of electroless Ni-Zn-P alloy films[J]. Journal of Materials Science, 1999,34(10) :2 437-243 9.
  • 2Bouanani M, Cherkaoui F, Fratesi R, et al. Microstructural characterization and corrosion resistance of Ni-Zn-P alloys eleetrolessly deposited from a sulphate bath[J]. Journal of Applied Electrochemistry, 1999,29(5):637-645.
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