The corrosion resistance of these coatings is better than that of mechanical Zn plating coating,especially CuNi alloy coating is the best.

• 这些铜及铜合金镀层的耐蚀性能皆好于机械镀锌层,尤以铜-镍合金镀层的耐蚀性能最高,提高15倍左右;