钢材与接近中性的电解质接触,会持续发生电化学腐蚀。只要在金属表面不同的区域有电位差存在,就会有电流产生,阳极区域的金属就会被消耗掉。完全抑制这类腐蚀的一个有效方法就是控制电流,阻止金属溶解。为此,可采用涂层或表面处理技术,而阴极保护则可达到全面抑制腐蚀的目的。 Steels come in close contact with neutral electrolytes and electrochemically corrosion persists. As long as there is a potential difference in different areas of the metal surface, there will be current, the anode region of the metal will be consumed. An effective way to completely suppress such corrosion is to control the current and prevent the metal from dissolving. To this end, the coating or surface treatment technology can be used, while the cathodic protection can achieve the purpose of full inhibition of corrosion.