纳米晶镍脉冲电沉积层在NaCl和NaOH溶液中的腐蚀性能

材料保护, 2010, 43(5): 1-5.

纳米晶镍脉冲电沉积层在NaCl和NaOH溶液中的腐蚀性能

谢宇玲 ^1, , 庄哲峰 ^2, , 戴品强 ^3, , 陈闪闪 ^4, , 郑炜铭 ^5, , 洪永志 ^6,

1.福州大学材料科学与工程学院,福建,福州,350108

2.福建农林大学机电学院,福建,福州,350002

3.福州大学材料科学与工程学院,福建,福州,350108

4.福州大学材料科学与工程学院,福建,福州,350108

5.福州大学材料科学与工程学院,福建,福州,350108

6.福州大学材料科学与工程学院,福建,福州,350108

基金项目: 福州大学创新团队资助项目福建省自然科学基金(E0810006)

关键词：脉冲电沉积 , 纳米晶Ni , 耐腐蚀性能 , NaCl溶液 , NaOH溶液

Corrosion Resistance of Pulse Electrodeposited Nanocrystalline Ni Coatings in NaCl Solution and NaOH Solution

目前,对纳米材料耐腐蚀性研究的结论不尽相同,对其腐蚀机制的见解也不统一.通过脉冲电沉积方法制备了纳米晶Ni沉积层.采用浸泡法和电化学方法研究了纳米晶Ni沉积层在3.5%NaCl(质量分数)以及10.0%NaOH(质量分数)溶液中的腐蚀行为.结果表明:在3.5%NaCl溶液中,纳米晶Ni沉积层具有较低的自腐蚀电位和较宽的钝化区,其耐腐蚀性能随着晶粒尺寸的减小而降低;在10.0%NaOH溶液中,纳米晶Ni沉积层的阳极极化曲线有较宽的钝化区,其耐腐蚀性能随着晶粒尺寸的减小而提高.

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纳米晶镍脉冲电沉积层在NaCl和NaOH溶液中的腐蚀性能

Corrosion Resistance of Pulse Electrodeposited Nanocrystalline Ni Coatings in NaCl Solution and NaOH Solution

参考文献