| Corrosion resistance of 2195 aluminum alloy treated by multi-step-heating-rate controlled process |
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| 引用本文： | 许越 刘玉峰 耿季平. Corrosion resistance of 2195 aluminum alloy treated by multi-step-heating-rate controlled process[J]. 中国有色金属学会会刊, 2006, 16(A03): 1528-1531 |
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| 作者姓名： | 许越 刘玉峰 耿季平 |
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| 作者单位： | School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| 基金项目： | Foundation item： Project（51471050105HK0101） supported by the National Key Laboratory of Precision Thermal Treatment, Harbin Institute of Technology, China |
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| 摘 要： | 2195 aluminum-lithium alloy was widely applied in the aviation and aerospace industry, but it is highly susceptible to pitting and intergranular corrosion undergoing sever corrosive circumstance and moisture atmosphere. To solve this problem and consequently to prolong its service life, a multi-step-heating-rate（MSRC） process was carried out. Investigations were carried out to find the effect of the MSRC process on the alloys corrosion resistance. It is found that the MSRC process is more favorable for the uniform phase precipitation by comparing the corrosion resistance of samples treated by traditional heat treatments. The potential difference between phases can be reduced and intergranular corrosion is able to be prohibited efficiently. Besides, the rare earth infiltration is beneficial to improving the corrosion resistance. As heating time increases, the corrosion resistance declines gradually, samples treated by artificial aging and solid solution also exhibit a better corrosion resistance.
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| 关 键 词： | 金属腐蚀 抗蚀性 热处理 铝合金 结构材料 |
| 收稿时间： | 2006-07-28 |
| 修稿时间： | 2006-09-15 |
Corrosion resistance of 2195 aluminum alloy treated by multi-step-heating-rate controlled process |
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| XU Yue, LIU Yu-feng, GENG Ji-ping. Corrosion resistance of 2195 aluminum alloy treated by multi-step-heating-rate controlled process[J]. Transactions of Nonferrous Metals Society of China, 2006, 16(A03): 1528-1531 |
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| Authors: | XU Yue LIU Yu-feng GENG Ji-ping |
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| Abstract: | |
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| Keywords: | 2195 aluminum-lithium alloy multi-step-heating-rate controlled process corrosion resistance rare earth |
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