摘要
通过浸泡挂片试验 ,用扫描电镜和X衍射仪 ,对试样的腐蚀特征和腐蚀产物进行研究 ,发现脱硫脱硫弧菌duselfovibriodesulfuricans(D .desulf)对油田管材的腐蚀特征为点蚀 ,腐蚀产物为Fe9S8.同时通过电化学试验 ,研究了D .desulf的去极化作用 ,发现D .desulf的存在既有阳极去极化作用 ,又有阴极去极化作用 .在对D .desulf的生长特性研究中 ,发现D .desulf的生长存在着对数生长期。
Studying the corrosion feature and corrosion product of test sample by way of soak test and with the aid of scanning electron microscopy(SEM) and XRD,it is discovered that the corrosion feature of Desulfovibrioi desulfuricans(D.desulf) to petroleum tubular materials is pitting,and the corrosion product is Fe 9S 8.At the same time,studying the depolarization reaction of D.desulf.has both anode and cathode depolarization reaction.In the research of growth feature of D.desulf.,it is discovered that the growth of D.desulf.exists logarithm period,growing animated period,and decreasing period.
出处
《中国腐蚀与防护学报》
CAS
CSCD
2001年第4期225-229,共5页
Journal of Chinese Society For Corrosion and Protection
基金
中国石油天然气集团公司"九五"重点课题
