Galvanic Corrosion Behavior of 907A/ Titanium Couple in Simulated Seawater
Galvanic Corrosion Behavior of 907A/ Titanium Couple in Simulated Seawater
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DOI：
10.20964/2017.03.75
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发表时间：
2017-03
影响因子：
1.5
通讯作者：
Xiaodong Zhang
中科院分区：
文献类型：
--
作者：
Xiaodong Zhang
采用电化学阻抗谱和电化学噪声技术，结合扫描电镜方法研究了907A和907A/钛电偶（GC）在海水中的腐蚀行为。结果表明，907A和907A/Ti气相色谱的腐蚀过程均可分为两个阶段，但分界点不同，Ti与907A的电位差不仅显著加速了907A/Ti气相色谱中的腐蚀过程，而且可能改变了907A/Ti气相色谱中的腐蚀机理。首次采用腐蚀噪声衍生的电化学活性能来表征907A和907A/Ti气相色谱在海水中的腐蚀过程，发现该值越大，腐蚀速率越高。
The corrosion behaviors of 907A and 907A/ titanium galvanic couple (GC) in seawater have been studied by using electrochemical impedance spectroscopy and electrochemical noise techniques in conjunction with scanning electron microscope method. The results show that, both the corrosion process of 907A and 907A /Ti GC can be divided into two stages but with different demarcation point, and the potential difference between Ti and 907A not only markedly accelerates the corrosion process of 907A in 907A/Ti GC, but also possibly changes its corrosion mechanism. The electrochemical active energy derived from the corrosion noise has been first adopted to characterize the corrosion process of 907A and 907A/Ti GC in seawater, and it is found that the larger the value, the higher the corrosion rate.