使用済アルミニウム缶再生合金の腐食性評価 Corrosion assessment for recycled beverage aluminum alloy container
Electrochemical investigation and metallurgical observation have been made to compare between two aluminum alloys for beverage can containers: one is alloy 3004 in the Japanese market and the other is used aluninum alloy (compositions adjusted), in a deaerated 500 ppm NaCl solution containing 0.1 g/<i>l</i> citric acid. It is found that the pitting attack resistance of used aluminum alloy shows less corrosion performance in comparison with the aluminum alloy 3004: the anodic polarization shows almost same behavior, but the cathodic polarization behavior of used aluminum alloy shows detrimental tendency to the pitting attack.
軽金属 46(9), 432-436, 1996-09-30
The Japan Institute of Light Metals