Galvanic corrosion between depleted uranium and 40Cr Steel

摘要：

　　Individual corrosion and galvanic corrosion behaviors of depleted uranium (DU) and 40Cr steel were investigated by electrochemical analyzing technologies in 3.5w.t%NaCl solution,including open circuit potential(OCP) test,linear polarization(LP) test,potentiodynamic polarizaition(PD) test,galvanic corrosion potential and corrosion current density test.The results reveal that the OCP of DU and 40Cr steel are around-790mV and-660mV,respectively.40Cr has a higher linear polarization resistance than DU in galvanic corrosion.The dynamic processes of galvanic corrosion goes through an conversion in the whole test period.DU acts as anode with an accelerated corrosion rate,while the 40Cr steel behaves as cathode during the process of galvanic corrosion for DU/40Cr couple.The galvanic potential and current density of the DU/40Cr couple are-780mⅤ and 17.5μA/cm-2,respectively.

关键词： Depleted uranium 40Cr Steel Galvanic corrosion

作者: PU Zhen WANG Qing-fu SHUAI Mao-bin LANG Ding-mu

作者单位: Science and Technology on Surface Physics and Chemistry Laboratory, P.O.Box 718-35,Mianyang 621907, China Academy of Engineering Physics, P.O.Box 919-71, Mianyang 621900, Sichuan, China

会议类型: 国际会议

会议名称: the 2012 International Conference on Materials Science and Nanotechnology (2012年材料科学与纳米技术国际会议(ICMSN 2012))

会议地点: 广州

会议语种:英文

页码: 220-225

在线出版日期: 2012-11-16（万方平台首次上网日期，不代表论文的发表时间）