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| EFFECT OF ACID RAIN ON CRITICAL RELATIVE HUMIDITY OF ATMOSPHERIC CORROSION |
| Gao Gengyu Huang Chunxiao and Sun Cheng (Institute of Corrosion and Protection of Metals: Academia Sinica) |
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Abstract The potential of atmospheric corrosion cell(Fe/Cu) wetted by artificial acid rain in pH range of 4 — 7 at dif f erent conccntrabions, was mas measured in different relative humidity range of 30～90%. Atmospheric corrosion occurred at lower relative humidity with decrease in pH and increase in concentration of acid rain. The data obtained in this work also indicated that concentration of acid rain has more significant influence than pH of acid rain on atmospheric corrosion.
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Received: 25 April 1990
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[1] Mansfeld, F.; Kenkel, J.V., Corrosion, 33, 13(1977)
[2] Xie, S.F.; Huang, Z.Q., Pro.PACIFIC CORR. '87 Melbourn-Australia, Nov.2, (1987)
[3] ASTM 11, E104-51 (1983) |
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