通过失重法和阳极极化曲线,研究了高频脉冲电沉积Ni-SiC复合镀层在15%H_2SO_4溶液中的耐蚀性与脉冲电源频率的关系.利用扫描电镜(SEM)观察了Ni-SiC复合镀层在15%H_2SO_4溶液中腐蚀前后的表面形貌.结果表明:高频脉冲镀层致密、均匀,与直流镀层相比,在15%H_2SO_4溶液中有较强的耐腐蚀性,且脉冲频率越高,镀层耐腐蚀性越好.
The corrosion behavior of high frequency pulse electroplated Ni-SiC composite coating in 15% H_2SO_4 solution was evaluated in relation to the pulse frequency by using weight loss test and anodic polarization curve measurement.The morphologies of the composite coating before and after corrosion were observed using a scanning electron microscope.Results show that the Ni-SiC composite coating prepared by high-frequency pulse electrodeposition is compact and uniform.It had better corrosion resistance than the same coating prepared by direct current electrodeposition,and its corrosion resistance increased with increasing pulse frequency.
参考文献
| [1] | 侯峰岩,王为,刘家臣,郭鹤桐.脉冲复合镀Ni-ZrO<,2>的研究[C].第五届全国表面工程学术会议论文集,2004:231-232. |
| [2] | 郭忠诚;王敏;刘洪康 .电镀法制取耐磨耐蚀复合镀层的性能研究[J].机械工程材料,1998,22(01):41-44. |
| [3] | 汤皎宁,龚晓钟,柳文军,黄建军,杨钦鹏.脉冲和直流电镀镍层磨损及腐蚀磨损性能研究[J].材料保护,2001(07):12-13. |
| [4] | 解西锋,朱荻.高频脉冲电铸的试验研究[J].航空精密制造技术,2003(02):10-13,33. |
| [5] | Ebrahimi F;Bourne G R;Kelly M S .Mechanical Properties of Nanocrystalline Nickel Produced by Electrodeposition[J].Nanostruetured Materials Journal,1999,11(03):343-350. |
| [6] | 胡荣伟,王勇,姚奎鸿.氮化硅纳米粉体的表面改性研究[J].浙江理工大学学报,2007(03):253-256. |
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