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一、前言炭素钢及低合金高强度钢是国民经济建设中大量使用的基本结构材料。在炭素钢中加入少量合金元素,像铬、镍、锰和铜等可改善钢在大气条件下的机械性能和耐蚀性,但在不同的气候条件下其腐蚀稳定程度也有所不同。В.В.Скорчеллтти研究指出:铜钢在干燥大气中的腐蚀稳定性高于炭素钢7倍,而在潮湿大气中仅提高1至2倍。美国ASTM曾把低合金匐钢在各种气候条件下进行了大量试验,结果表明:在钢表面的水膜发生定期干燥并在有腐蚀产物膜复盖的条件下,铜钢具有提高腐蚀稳定性的明显优越性。关于在钢中加入含金元素对改善其腐蚀稳定性的作用解释很多。Н.Д.Томашов等认为,铜钢的耐蚀性是
First, the preface Carbon steel and low alloy high strength steel is the basic structural material used extensively in the national economy. Addition of a small amount of alloying elements in carbon steel, such as chromium, nickel, manganese and copper can improve the mechanical properties and corrosion resistance of steel under atmospheric conditions, but its corrosion stability in different climatic conditions are also different. В.В.Скорчеллтти The study indicates that the corrosion stability of copper steels in dry air is 7 times higher than that of carbon steels and only 1 to 2 times higher in humid atmospheres. ASTM United States had low-alloyed steel in a variety of climatic conditions conducted a large number of tests, the results show that: the water film on the surface of the steel regularly dry and corrosion products in the film covered conditions, the copper has increased corrosion stability The obvious superiority. There are many explanations for the effect of adding gold-containing elements to the steel to improve its corrosion stability. Н.Д.Томашов so that the corrosion resistance of copper is