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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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T6态2090Al-Li合金在EXCO溶液中的剥蚀行为和剥蚀发展过程中的电化学阻抗谱
, PP. 974-978
Keywords: A1-Li合金,电化学阻抗谱,EXCO溶液
Abstract:
采用电化学阻抗谱(EIS)和光学显微镜原位观察等方法研究了T6态峰时效的2090Al-Li合金在EXCO溶液中的剥蚀行为.在浸泡过程中局部腐蚀形态演变经历了4个阶段点蚀、晶间腐蚀、剥蚀和剥蚀后期.在点蚀阶段形成的以杂质相为局部阴极生成的大蚀孔成为剥蚀引发的中心，剥蚀鼓泡沿大蚀孔边缘生长，直到把表层以下完全穿透.点蚀引发阶段的EIS由一个高频容抗弧和一个中低频感抗弧构成，在点蚀发展阶段感抗弧消失.晶间腐蚀阶段的EIS的容抗部分中很难分辨出腐蚀区域对应的时间常数,剥蚀发展阶段和剥蚀后期的EIS由两个容抗弧构成.
| [1] | Liu J A, Zhu X W. Light Alloy Fabr Technol, 1996; 24(5): 2 (刘静安,朱献文．轻合金加工技术, 1996;24(5):2)
|
| [2] | He J P, Chen W L, Xu W, Fan W X. J Nanjing Univ Aeronaut Astronaut, 1999; 31: 575 (何建平,陈文理,许玮,樊蔚勋．南京航空航天大学学报, 1999;31:575)
|
| [3] | He B, Sun Y C, Fan W X. J Nanjing Univ Aeronaut Astronaut, 1998; 30: 306 (贺斌,孙有朝,樊蔚勋．南京航空航天大学学报,1998;30: 306)
|
| [4] | ASTM G34-79.Exfoliation Corrosion Susceptibility in 2xxx and 7xxx Series Aluminum Alloys (EXCO test), 1999
|
| [5] | Kelly D J, Robinson M J. Corros Sci,1993;49: 787
|
| [6] | Habashi M, Bonte E,Galland J, Bodu J J. Corros Sci, 1993; 35: 169
|
| [7] | Conde A, de Damborenear J. Electrochim Acta, 1998; 43: 849
|
| [8] | Coude A, de Damborenear J. Corros Sci, 2000; 42: 1393
|
| [9] | Buchheit R G Jr, Moran J P, Stoner G E. Corrosion, 1990; 46: 610
|
| [10] | Garrard W N. Corrosion, 1994, 50: 215
|
| [11] | Buchheit R G, Moran J P, Stoner G E. Corrosion,1994; 50: 120
|
| [12] | Kumai G, Kusinski J, Thomas G, Devine T M. Corrosion, 1989; 45: 294
|
| [13] | Cao C N, Wang J, Lin H C. J Chin Soc Corros Protect, 1989; 9: 261 (曹楚南,王 佳,林海潮．中国腐蚀与防护学报,1989;9: 261)
|
| [14] | Cao C N, Zhang J Q. An Introduction to Electrochemical Impedance Spectroscopy.Beijing:Science Press, 2002: 177 (曹楚南,张鉴清．电化学阻抗谱导论．北京:科学出版社,2002: 177)
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