保护金属不受腐蚀的最老的办法,是在它们的表面上涂上一层比较贵重的金属——镀银,镀金,镀镍,镀锡。漆、油、油质颜料能够保护金属不和外界接触,因此也能够预防金属腐蚀。苏联科学家B·A·吉斯切科夫斯基院士第一个发现了:腐蚀的产物本身,就能够预防腐蚀!例如钢上和铝上,由於空气的作用,形成了一层极薄的氧化物的薄膜,金属便受到了可靠的保护。加盖这样的薄膜的办法,就叫“金属的表面氧化法”,近代在保护钢制品上应用很广。现在苏联的科学家们很注意腐蚀的研究。应用他们发明出来的保护金属的方法,每年可以保全几千几万吨的金属,使它们免於破坏。还有一个延长金属和合金寿命的方法,——这就是“合金 The oldest way to protect metals from corrosion is to coat their surfaces with a relatively precious metal—silver plated, gold plated, nickel plated, and tin plated. Paints, oils, and oil pigments protect metals from contact with the outside world and therefore also prevent metal corrosion. The Soviet scientist B.A. Giszckovsky first discovered that the corrosion product itself can prevent corrosion! For example, on steel and aluminum, due to the air, a very thin layer of oxidation is formed. The thin film of the material, the metal has been reliably protected. The method of covering such a film is called “metal surface oxidation,” and it has been widely used in the protection of steel products in recent times. Now scientists in the Soviet Union pay great attention to the study of corrosion. Applying the methods they have invented to protect metals, they can save thousands of tons of metals each year, keeping them from being destroyed. There is also a way to extend the life of metals and alloys - this is "alloys