Electrochemical Performance Study of Rust Layer on Cu-P-RE Weathering Steel
Corrosion rates of 10PCuRE steels with different rate earth contents and plain carbon steel were studied by dry-wet cycle immersion test. The corrosion resistance of rust layer on rare earths weathering steel and carbon steel was studied through the electrochemical means of polarization test and electrochemical impedance spectra. The difference of corrosion resistance of testing steels was analyzed through electrochemical means. The 10PCuRE steels whose rare earths content is smaller than 0.016％ have good performance of corrosion resistance because corrosion potential of the steel is positive and resistance of rust layer is large. The results showed that rare earths of proper content could diminish corrosion tendency and promote the formation of the steady and compact rust layer.
weathering steel rust layer polarization curve EIS rare earths
Yue Lijie(岳丽杰) Wang Longmei(王龙妹) Chen Weigong(陈为公)
School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 2 Institute of Metallurgy Technics, Central Iron & Steel Research Institute, Beijing 100081, China School of Management, Qingdao Technological University, Qingdao 266510, China
国际会议
第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)
包头
英文
456-460
2007-08-07（万方平台首次上网日期，不代表论文的发表时间）