湿度对钢铁材料在中性土壤中腐蚀行为的影响  

INFLUENCE OF MOISTURE CONTENT ON SOIL CORROSION BEHAVIOR OF CARBON STEEL

作　　者：李谋成[1] 林海潮[1] 曹楚南 

机构地区：[1]中国科学院金属腐蚀与防护研究所金属腐蚀与防护国家重点实验室,沈阳110015

出　　处：《腐蚀科学与防护技术》2000年第4期218-220,共3页Corrosion Science and Protection Technology

基　　金：国家自然科学基金

摘　　要：应用弱极化曲线技术和电化学阻抗谱研究了湿度对中性土壤中钢铁材料腐蚀行为的影响 .结果表明 ,各种湿度的土壤中碳钢的腐蚀速度和腐蚀电位均随着腐蚀的持续进行而趋于一个稳定值 ;碳钢的稳定腐蚀电流密度随湿度变化存在最大值 .碳钢土壤腐蚀过程与土壤湿度密切相关 .The influences of moisture content on corrosion behavior of carbon steel in neutral soil were studied by low\|polarization curve technique. It was found that both the corrosion current density and corrosion potential reached a constant value with the development of corrosion of carbon steel in soils with different moisture content. The invariable soil corrosion current density of carbon steel had a maximum value with the variation of moisture content. At the same time, the controlling characteristic of soil corrosion is discussed.

关 键 词：土壤腐蚀 湿度 碳钢 

分 类 号：TG172.4[金属学及工艺—金属表面处理]