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前言 铝及其合金是现代工业中最为广泛应用的轻合金之一。但由于铝及其合金具有极大的活性,在工业气氛、海洋性气候,甚至在最一般的自然环境中极易遭受腐蚀,不仅如此,高含铜铝合金在上述环境条件下还易于产生晶间腐蚀。大量试验证明,含铜量较高的铝合金材料,抗大气腐蚀性能不如纯铝和铝镁合金好。广州电器所在广州进行的为时两年
Introduction Aluminum and its alloys are among the most widely used light alloys in modern industry. However, due to the great activity of aluminum and its alloys, it is extremely susceptible to corrosion in industrial atmosphere, maritime climate and even in the most general natural environment. In addition, the high-copper-containing aluminum alloy is also liable to produce crystals under the above environmental conditions Corrosion between. A large number of experiments show that the higher the aluminum content of the aluminum alloy, the anti-atmospheric corrosion performance is not as good as pure aluminum and aluminum-magnesium alloy. Guangzhou Electric is located in Guangzhou last two years