期刊
OXIDATION OF METALS
卷 53, 期 3-4, 页码 361-373出版社
KLUWER ACADEMIC/PLENUM PUBL
DOI: 10.1023/A:1004549522648
关键词
aluminun; magnesium; atmosphere; beverage cans; high-temperature oxidation
The effect of the atmosphere on the oxidation rates of aluminum-can alloys was studied using thermogravimetric methods. The atmospheres included: air, Ar + 1%O-2, Ar + 5%O-2, and CO2. Temperatures ranged from 450 to 800 degrees C. The oxidation rate was influenced by the surface condition and by the time elapsed after specimen preparation. Increasing temperature increased the oxidation rate of both AA 3004 and 5182. Parabolic kinetics were observed for AA 3004 and linear kinetics were observed for AA 5182 at 450 and 500 degrees C. From 550 to 800 degrees C, parabolic behavior was observed for AA5182. The reduction of free oxygen in the atmosphere reduced the rate of oxidation. The reactivity of the atmospheres decreased in the following sequence: air, Ar+5%O-2, Ar+1%O-2, and CO2.
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