一、前言 HA177-2铝黄铜被广泛地应用在海滨发电厂和船舶工业上作为冷凝管材料。这是因为它的机械性能较高,尤其是在海水中具有良好的抗腐蚀能力所致。 根据国内外资料表明,HA177-2铝黄铜制品,在使用过程中主要的损坏形式是脱锌。人们通过试验提供了许多抑制脱锌的方法,其中以加入0.03～0.05％AS最为普遍, I. Introduction HA177-2 aluminum brass is widely used in waterfront power plants and marine industries as a condenser tube material. This is because of its high mechanical properties, especially due to its excellent corrosion resistance in seawater. According to domestic and foreign data show that HA177-2 aluminum brass products, the main form of damage during use is dezincification. Many experiments to provide a number of ways to inhibit dezincification, of which 0.03 to 0.05% AS is the most common addition,