%0 Journal Article
%T Effect of Stray Current on Corrosion of Q235,16Mn and X70 Steels with Damaged Coating<br>涂层破损时杂散电流对Q235、16Mn、X70钢腐蚀的影响
%A 王燕
%A 闫永贵
%A 董超芳
%A 钱建华
%A 李晓刚
%J 腐蚀科学与防护技术
%D 2010
%I 
%X The effect of stray current on corrosion of Q235,16Mn and X70 pipeline steels was studied by measuring the corrosion ratio,observing the surface,as well as calculating the variation of fractal dimension and corrosion pit depth with the change of the damaged rate of coatings.The results indicated that under the stray current disturbance, the degree of corrosion for Q235 was the most serious,16Mn the next worse and X70 the smallest.As the intensity of stray current increased and the damaged ratio of coating decreased,the corrosion rate increased,the corrosion pit depth became deeper,and corrosion degree was aggravated.The fractal dimensions of the corrosion surface are determined by box-dimension method,which are found to be in agreement with the trend of measured corrosion rates,and in fact,the fractal dimension could describe the surface morphology of the stray current corrosion of pipeline steels.
%K stray current corrosion
%K damaged ratio of coating
%K corrosion rate
%K fractal dimension
%K corrosion pit depth<br>杂散电流腐蚀
%K 涂层破损率
%K 腐蚀速率
%K 分形维数
%K 腐蚀坑深
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=9F6E6EC8BA5BB62698F6640073DDD6E1&aid=0AA4072C7FBB182DF3B302A3FDF7A8A4&yid=140ECF96957D60B2&vid=BC12EA701C895178&iid=0B39A22176CE99FB&sid=7555FB9CC973F695&eid=EFD65B51496FB200&journal_id=1002-6495&journal_name=腐蚀科学与防护技术&referenced_num=0&reference_num=3