| LC4高强铝合金的腐蚀性能研究 |
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| 引用本文： | 钱建刚,李荻,等.LC4高强铝合金的腐蚀性能研究[J].腐蚀与防护,2002,23(8):340-343. |
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| 作者姓名： | 钱建刚 李荻 |
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| 作者单位： | 北京航空航天大学材料学院 北京100083
(钱建刚，李荻，郭宝兰)，北京航空航天大学材料学院 北京100083(李强) |
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| 摘 要： | 利用慢应变速率拉伸试验方法研究了LC4铝合金在空气和3．5％NaCl溶液中的应力腐蚀断裂行为；利用HB5455－90标准研究了LC4铝合金的剥蚀行为；利用HB5255－83标准研究了LC4铝合金的晶间腐蚀行为。结果表明：LC4铝合金具有应力腐蚀敏感性，应力腐蚀的断口形貌受应变速率ε的影响较大；LC4铝合金对剥蚀很敏感，对晶间腐蚀不是很敏感。
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| 关 键 词： | LC4高强铝合金 腐蚀性能 研究 应力腐蚀 慢应变速率 剥蚀 晶间腐蚀 氯化钠溶液 |
| 文章编号： | 1005-748X(2002)08-0340-04 |
| 修稿时间： | 2001年9月5日 |
CORROSION BEHAVIOR OF HIGH-STRENGTH ALUMINUM ALLOY LC4 |
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| QIAN Jian gang,LI Di,GUO Bao lan,LI Qiang.CORROSION BEHAVIOR OF HIGH-STRENGTH ALUMINUM ALLOY LC4[J].Corrosion & Protection,2002,23(8):340-343. |
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| Authors: | QIAN Jian gang LI Di GUO Bao lan LI Qiang |
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| Abstract: | The susceptibility to stress corrosion cracking in 3.5%NaCl solution of aluminum alloy LC4 was studied by using slow strain rate testing. The exfoliation corrosion and intergranular corrosion were also investigated. The results showed that LC4 was susceptible to stress corrosion cracking in 3.5%NaCl solution, and strain rate affected the fracture morphology of stress corrosion cracking. LC4 was susceptible to exfoliation corrosion but not susceptible to intergranular corrosion. |
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| Keywords: | Stress corrosion cracking Slow strain rate testing Exfoliation corrosion Intergranular corrosion |
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