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应用针状扫描微参比电极,进行了天然海水中921钢及其焊接接头电位分布测定和局部腐蚀动态过程的行为研究。试验所得三维扫描电位分布图直观、准确地显示了试件表面电位的分布,腐蚀活性点的发生与发展,阳极区及阴极区的位置及随时间的变化关系,极化状态的试验结果还为材料的保护提供了很好的数据。
Application of needle scanning micro reference electrode, natural seawater 921 steel and its welding joint potential distribution determination and local corrosion dynamic process behavior. The three-dimensional scanning potential distribution obtained from the test visually and accurately shows the distribution of potential on the surface of the specimen, the occurrence and development of the active sites, the positions of the anode region and the cathode region, and the change with time. The polarization state test result is also Material protection provides good data.