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CORROSION BEHAVIOR OF ATMOSPHERIC ENVIRONMENT AND CORROSION FEATURE OF MATERIALS IN OUR WESTERN AREA |
Yide Xiao;Guangyong Wang;Xiaogang Li |
武汉材料保护研究所 |
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Abstract The topography,geomorphy and climate in western are a in our country are complex and multivariate.According to climatic factors and environmental conditions,there are approximately four types of typical atmospher ic environment,namely acid rain environment,desert environment,plateau environme nt and tropical rainforest environment.The atmospheric corrosion degrees of all types of environment are different,as well as are the corrosion failure features of materials under different environment conditions.The acid rain atmospheric e nvironment aggravates the corrosion failure of metals,protective coatings on met als and building materials,etc.Although the climate is dry and there is little r ain in the desert atmospheric environment,owning to the high salt content in air sediment,the corrosion failure of copper,zinc,aluminum,stainless steel and meta l coatings in Takelamagan area located in Talimu basin is severer than that in e astern moist hot or semi-moist hot city environment.Under plateau environment condition,the significant feature is that macromolecular materials will fail rap idly.The feature of tropical rainforest atmospheric environment is mainly that o ptical instrument,leather,fabric and timber will be severely moulded.
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Received: 08 May 2002
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Corresponding Authors:
Yide Xiao
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