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人类对腐蚀现象的考察及其防腐措施的采用可以追溯到古代社会。金和银早就成为贵重装饰和涂层而为人们所珍重,首先是由于它们具有卓越的耐蚀性能。金可以说是完全不腐蚀的金属,我国在公元前八世纪已有广泛使用金箔作装饰品,在公元前三世纪时我国也已广泛采用金汞齐的鎏金术,作为在金属表面施涂金的涂层技术。在秦始皇陵墓中发掘出来的青铜剑和大量箭镞,有的至今毫无锈蚀。经鉴定箭镞表面有一层致密黑色
Human investigation of the phenomenon of corrosion and the use of its anti-corrosion measures can be traced back to the ancient society. Gold and silver have long been distinguished by precious decorations and coatings, first of all due to their excellent corrosion resistance. Gold can be said to be completely non-corrosive metal, our country in the eighth century BC has been widely used as a decorative gold leaf, in the third century BC, China has also widely used gold amalgam surgery, as applied to the metal surface Gold coating technology. Excavated in the Qin Shi Huang Mausoleum bronze sword and a large number of arrows, and some no rust so far. Identified Arrow 镞 surface layer of dense black