ANALYSIS ON THE CORROSION RUST OFWEATHERING STEEL EXPOSED IN ATMOSPHERE

J Chin Soc Corr Pro

2001, Vol. 21

Issue (5): 297-300 DOI:

Research Report

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ANALYSIS ON THE CORROSION RUST OFWEATHERING STEEL EXPOSED IN ATMOSPHERE

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上海交通大学材料学院

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Abstract Corrosion of carbon steel and the weathering steel in marine atmosphere during different time was compared,the morphology of rust layer was observed,and the distribution of the alloy elements in the rus t layer was determined.The results show that corrosion rust of weathering steel exposed in the atmosphere for 1 year consisted of inner layer and outer layer ob viously, the former is composed of α-FeOOH mainly,and the latter is of α-FeO OH and a little FeO.There are some cracks distributed in the inner layer,where contains richer alloy elements compared to the substrate steel.

Key words: atmospheric corrosion weathering steel inner rust laye r FeOOH

Received: 24 April 2000

ZTFLH:

TG172.3+1

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. ANALYSIS ON THE CORROSION RUST OFWEATHERING STEEL EXPOSED IN ATMOSPHERE. J Chin Soc Corr Pro, 2001, 21(5): 297-300 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2001/V21/I5/297

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