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输配水镀锌钢管内壁腐蚀瘤物化特性研究
Investigation of Physico-Chemical Characteristics of Tubercles in Galvanized Pipes for Drinking Water Distribution
【摘要】 对输配水镀锌钢管内壁腐蚀瘤的形态结构特征及化学成分进行研究.研究发现腐蚀瘤通常具有相似的内部形态结构,由腐蚀瘤表面向内基本分为3层:表面层、硬壳层和疏松多孔内核层.腐蚀瘤的主要构成物质为铁腐蚀产物,Fe3O4、FeO(OH)是其主要化学成分.
【Abstract】 Structrues and composition of tubercles formed in galvanized pipes in water distribution system were characterized.It was found that the tubercles had similar morphological structure,almost had 3 layers: the outer layer,the "shell-like" layer and the porous interior.The main chemical composition of the tubercles were iron corrosion byproducts,such as Fe3O4,FeO(OH).
【关键词】 镀锌钢管;
腐蚀;
腐蚀瘤;
物理化学特性;
【Key words】 galvanized pipe; corrosion; tubercles; physico-chemical characteristics;
【Key words】 galvanized pipe; corrosion; tubercles; physico-chemical characteristics;
【基金】 国家863项目“南方地区安全饮用水保障技术”(2002AA601120)
- 【文献出处】 南华大学学报(自然科学版) ,Journal of Nanhua University(Science and Technology) , 编辑部邮箱 ,2006年03期
- 【分类号】TU991.33
- 【被引频次】12
- 【下载频次】147