复合结构Ni-P 非晶态镀层在H2S/ CO2环境中的耐腐蚀性能

杜岩滨, 朱立群, 薛振, 刘慧从, 白真权

杜岩滨, 朱立群, 薛振, 等. 复合结构Ni-P 非晶态镀层在H2S/ CO2环境中的耐腐蚀性能[J]. 复合材料学报, 2006, 23(6): 92-97.
引用本文: 杜岩滨, 朱立群, 薛振, 等. 复合结构Ni-P 非晶态镀层在H2S/ CO2环境中的耐腐蚀性能[J]. 复合材料学报, 2006, 23(6): 92-97.
DU Yan-bin, ZHU Li-qun, XUE Zhen, et al. Corrosion resistance of Ni-P amorphous composite coating inthe environment containing H2S/ CO2[J]. Acta Materiae Compositae Sinica, 2006, 23(6): 92-97.
Citation: DU Yan-bin, ZHU Li-qun, XUE Zhen, et al. Corrosion resistance of Ni-P amorphous composite coating inthe environment containing H2S/ CO2[J]. Acta Materiae Compositae Sinica, 2006, 23(6): 92-97.

复合结构Ni-P 非晶态镀层在H2S/ CO2环境中的耐腐蚀性能

基金项目: 中国石油天然气集团公司石油管力学和环境行为重点实验室预研及探索性项目(ZYT20403)
详细信息
    通讯作者:

    朱立群, 教授, 博士生导师, 主要从事材料表面腐蚀与防护方面的研究 E-mail : zhulq @buaa. edu. cn

  • 中图分类号: TB331

Corrosion resistance of Ni-P amorphous composite coating inthe environment containing H2S/ CO2

  • 摘要: 通过在同一镀液中改变温度、p H 值和施加电流完成化学镀和电镀过程, 在普通碳钢基体上得到电位差高于160 mV 的复合结构的非晶态Ni- P 合金镀层。采用SEM、电化学测试设备及专门的腐蚀环境试验箱, 研究了该复合镀层在H2S/ CO2 腐蚀气氛中的耐腐蚀行为。结果表明: 所制备的复合结构Ni- P 非晶态镀层在H2S/CO2腐蚀环境中, 100 h 后镀层表面出现均匀的硫化物腐蚀膜, 300 h 后镀层表面出现腐蚀裂纹, 并沿着与基体表面平行的方向扩展、剥离, 在电镀层剥离处磷元素的相对含量增加。所制备的12μm 厚的复合叠加结构Ni- P 非晶态镀层的耐腐蚀性能优于25μm 厚的普通化学Ni-P 非晶态合金镀层。
    Abstract: A multilayer amorphous Ni-P composite coating with a potential difference above 160mV was preparedin the same bath by varying the temperature , p H value and elect ric field alternately. The anti-corrosion behavior ofthe composite coating was studied in the environment with H2S and CO2 , and the result s show that the terraceamorphous Ni-P composite coating performed well in corrosion-resistance in the environment with H2S and CO2 .An even corrosive film formed on the surface of the composite terrace coating af ter 100h. Corrosive cracks appearedon the composite coating’s surface af ter 300h , and the cracks expanded along the parallel direction of the base. Theenrichment of phosphorus occurred in the places where the elect rodeposited coating was deprived. The corrosion results indicated that this multilayer Ni2P coating of 12μm thickness possessed better anti-corrosion properties thanthe plain elect roless coating of 25μm.
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出版历程
  • 收稿日期:  2006-02-22
  • 修回日期:  2006-04-27
  • 刊出日期:  2006-12-14

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