稀土碳锰纯净钢表面钝化膜性能研究  

Study on Passive Film of Carbon-Manganese Purity Steels with Rare Earths

作　　者：郭锋[1] 林勤[2] 

机构地区：[1]内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特010051 [2]北京科技大学冶金物理化学系,北京100083

出　　处：《稀土》2006年第3期7-10,共4页Chinese Rare Earths

基　　金：国家"十五"科技攻关重大专项(2002BA315A-5)

摘　　要：探讨了研究稀土碳锰纯净钢表面钝化膜性能的电化学方法,实验表明恒电位极化过程中钝化区的电流和电量可以作为钝化膜性能的表征参量。镧和铈影响碳锰纯净钢的表面钝化能力,改善钝化膜性能的适宜含量大约为镧0.011%、铈0.034%。In this paper, electrochemiscal method was investigated to study the performance of passive film of carbon-manganese purity steels with rare earths. The results show that under constant potential the polarization current and electric quantity in the passive region can be used as characteristic parameters of passive film, which was affected by rare earths. Furthermore, the optimum contents of rare earths to improve performance of passive film are about La 0.01 % and Ce 0. 035%.

关 键 词：稀土 碳锰纯净钢 电化学方法 钝化膜 

分 类 号：TG142.13[一般工业技术—材料科学与工程]