铜在典型内陆盐土中的腐蚀特征  

CORROSION CHARACTERISTICS OF Cu IN TYPICAL INLAND SALTY SOILS

作　　者：鹿中晖[1] 章钢娅[2] 王永红[1] 李英志[1] 孙慧珍[2] 

机构地区：[1]电信科学技术第五研究所,成都610062 [2]中国科学院南京土壤研究所,南京210008

出　　处：《腐蚀科学与防护技术》2009年第6期522-525,共4页Corrosion Science and Protection Technology

基　　金：国家自然科学基金重大项目(50499333)

摘　　要：采用在两种西部内陆盐土中自然埋藏的试验方法,结合扫描电镜、EDAX能谱及X射线衍射分析研究了铜的产物及腐蚀特征.结果表明,铜在格尔木盐渍土中呈大面积斑坑腐蚀,在库尔勒荒漠土呈局部较深点蚀.土壤中氧气含量、氯离子和硫酸根离子含量、含水量及土壤质地是造成两种土壤中铜腐蚀差异的主要原因.By means of naturally burying specimens in two typical inland salty soils the corrosion behavior of pure Cu was examined. Then the corrosion characteristics of pure Cu and its corrosion products were analyzed by using SEM, EDAX and XRD. The results showed that Cu was pit-corroded in large area in Geermu salty soil and was partly deep spot-corroded in Kuerle desert soil which contained less salt. It was concluded that the corrosion of Cu mainly resulted from the amount of O2, Cl^- , SO4^2- and water content in soil as well as the soil texture.

关 键 词：铜 内陆盐土 腐蚀特征 

分 类 号：TG172.4[金属学及工艺—金属表面处理]