电化学2011，Vol.17Issue(4)：373-379,7.
阵列参比电极法研究316不锈钢焊缝腐蚀行为
Corrosion Behaviors of 316 Stainless Steel Weldment Studied by Array Reference Electrodes
摘要
Abstract
The array reference electrodes were developed to in situ measure the potential distributions of the welded 316 stainless steel.The images of potencial distribution were interpreted based on the results from metallographic analysis,polarization curve,EIS and volta potential imaging.It was indicated that the weld zone of metal suffered preferential corrosion when exposed to an agressive environment due to the distinct changes of structure and composition during the welding process.With time prolonging,the corrosion potential of the welding zone was negatively shifted to a maximum value,and then declined gradually.After 45 min immersion,the corrosion development from welding zone to the matrix was observed.The results of array reference electrodes is consistent with that of scanning Kelvin probe in which the welding zone exhibited higher corrosion susceptibility than the matrix.关键词
316不锈钢/焊缝/腐蚀/阵列参比电极Key words
316 stainless steel/weld zone/corrosion/array reference electrodes分类
化学化工引用本文复制引用
杨旺火,胡融刚,叶陈清,杭纬,李宁,林昌健..阵列参比电极法研究316不锈钢焊缝腐蚀行为[J].电化学,2011,17(4):373-379,7.基金项目
国家自然科学基金项目（50731004 21021002）资助 （）
