摘要
采用极化试验、浸泡试验和埋片试验研究了铜包钢、Q235钢和非金属涂层的腐蚀行为并分析了其相关性。结果表明在南昌、武汉、成都、天津4个腐蚀环境中,利用土壤模拟溶液极化试验(试验周期极短)、土壤模拟溶液浸泡试验(试验周期为30d)和埋片试验(试验周期为1a)3种试验方法,得出铜包钢的耐腐蚀性能最强,其次为非金属涂层,最差为Q235钢;铜包钢和Q235钢2种接地材料利用土壤模拟溶液试验与埋片试验的相关性非常强。针对铜包钢和Q235钢2种接地材料,采用土壤模拟溶液试验可较为快速地比较其在4种地区的腐蚀性强弱;而非金属涂层受环境体系的影响较大,2种试验在4种类型的腐蚀地区并无相关性。
The paper uses polarization test,immersion test and burying test to make a study of the corrosion behavior of copper-clad steel,Q235 steel and non-metallic coating,and analyzes their correlation.Three tests are done,including the polarization test with simulated soil solution(over a very short period),the immersion test with simulated soil solution(in a period of 30 days)and the burying test(in a period of one year).The results show that in the four corrosive environments of Nanchang,Wuhan,Chengdu and Tianjin,the copper-clad steel has the highest corrosion resistance,followed by the non-metallic coating;The Q235 steel has the weakest corrosion resistance.Indeed there is a strong correlation between the copper-clad steel and the Q235 steel with the simulated soil solution test and the burying test.For the copper clad steel and Q235 steel,their corrosiveness in the four areas can be quickly compared with the simulated soil solution test.The non-metallic coating is greatly affected by the environmental system,the two tests have no correlation in the four types of corrosion areas.
作者
刘欣
周宇
李志美
裴锋
田旭
贾蕗路
毛荣军
李财芳
LIU Xin;ZHOU Yu;LI Zhimei;PEI Feng;TIAN Xu;JIA Lulu;MAO Rongjun;LI Caifang(State Grid Jiangxi Electric Power Research Institute,Nanchang 330096,China;State Grid Jiangxi Electric Power Co.,Ltd.,Nanchang 330077,China;Department of Chemistry,Nanchang University,Nanchang 330031,China)
出处
《智慧电力》
北大核心
2020年第12期104-108,115,共6页
Smart Power
基金
国家自然科学基金资助项目(21907048)
国家电网公司科技项目(52182017000Y)。
关键词
铜包钢
非金属涂层
土壤模拟溶液
相关性
copper clad steel
nonmetallic coating
simulated soil solution
correlation
