BUCKLING OF ANODIC FILMS ON ALUMINUM - DETERMINATION OF PLASTIC-DEFORMATION ENERGY OF COATINGS

被引：1
|
作者：
TESCHKE, O [1 ]
KLEINKE, MU [1 ]
GALEMBECK, F [1 ]
机构：
[1] UNICAMP,INST QUIM,BR-13081 CAMPINAS,SP,BRAZIL
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1993年 / 140卷 / 06期
关键词：
D O I：
10.1149/1.2221620
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The mechanical instability of oxide layers on anodized aluminum generates a regular arrangement of straight lines parallel to the cylindrical electrode axis. This is analyzed using Euler's equation for buckling of thin cylindrical shells under compressive forces, due to volume expansion concurrent with metal-oxide formation. The coating critical stress is determined as well as the energy dissipated by plastic deformation of the anodic coating. Most of the energy associated with compressive stress of the oxide film is dissipated by plastic deformation.
引用
收藏
页码：1667 / 1671
页数：5
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