potential corrosion
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Does anyone know anything about potential corrosion? Under what conditions is potential corrosion likely to occur. How to prevent it on the device.
The potential difference between individual parts of the same metal is caused by various factors, such as: 1. It may occur between parts of the metal that are under mechanical stress and those that are not. 2. Differences in the composition and concentration of the electrolyte can also cause a potential difference. 3. Iron slag and corrosion products (rust) can also create a potential difference with pure metals. 4. The different degrees of aeration in clayey and sandy soils also create potential differences between different pipe sections. The most effective method of prevention is cathodic protection.
As a supplementary point: potential corrosion may also occur between different metals.
What is potential corrosion? http://bbs.hcbbs.com/thread-360628-1-1.html (Source: Haichuan Chemical Industry Forum)