地下金属构筑物阴极保护效果评价准则的研究进展  

Progress in Research of Criterion for Evalualion of Cnthodic Pnttection Effect of Underground Metallic Frameworks

作　　者：常守文[1] 张莉华[1] 

机构地区：[1]中国科学院金属研究所,辽宁沈阳110016

出　　处：《材料保护》2007年第1期43-45,共3页Materials Protection

基　　金：国家自然科学基金重大项目(50499336)资助

摘　　要：简要分析了评价阴极保护效果的3个定量准则在阴极保护工程实践中存在较大差异的原因,并根据腐蚀电化学原理,探讨了100 mV极化值准则下保护对象的腐蚀速度,结果表明,100 mV极化值准则更加科学、经济,能够满足工程实际的需要。A review was given on the causes leading to significant differences in the universal applicability of three quantitative criterions for evaluating the cathodic protection effect of underground metallic frameworks in relevant engineering practice. The corrosion rate of the objects to be protected was discussed based on the principle of corrosion electrochemistry, with respect to the criterion of 100 mV polarization value. It was pointed out (hat the criterion of 100 mV polarization value is more competitve in terms of the accuracy and cost and could well meet the requirements in the engineering practice for the calhodic protection of underground metallic frameworks.

关 键 词：地下金属结构腐蚀 阴极保护 保护效果 评价准则 

分 类 号：TG174.41[金属学及工艺—金属表面处理]