Effects of solution heat treatment on corrosion resistance o
时间:2009-12-01 20:49来源:未知 作者:风 点击:次
Aluminum alloys are used as substitutes for fiber reinforced polymer（FRP） in ships and boats. However, ships constructed with 5000-series Al alloy suffer a little corrosion in the marine environment, when they run in high speed, and high
Abstract：Aluminum alloys are used as substitutes for fiber reinforced polymer（FRP） in ships and boats. However, ships constructed with 5000-series Al alloy suffer a little corrosion in the marine environment, when they run in high speed, and high flow rate, etc. Therefore, solution heat treatment was carried out to prevent corrosion. The optimal heat treatment involved heating specimens for 120 min at 420 ℃ and then cooling them in water. In addition, the optimal ageing condition involved ageing specimens for 240 rain at 180℃. The slow strain rate test（SSRT） in a seawater revealed that heat treatment under optimal conditions produced improved elongation, time-to-fracture and amount of dimples compared with the as-received specimen.
KeyWord：aluminum alloy; seawater; solution heat treatment
关键词：铝合金 腐蚀性 固溶强化 热处理生产 纤维增强聚合物 电阻 慢应变速率 海洋环境
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