摘要
通过对Cr13,1Cr18Ni9Ti及1Cr18Ni9不锈钢小孔腐蚀模型电池及“闭塞”阳极电化学行为的研究,实验证明了小孔腐蚀的保护电位E_p是小孔内再钝化状态的宏观反映,而不是“免蚀电位”或者“腐蚀小孔内的自腐蚀电位”,从而澄清了此前对小孔腐蚀保护电位E_p物理意义的种种推测。
Based on the studies of a simulating pitting corrosion cell and the electrochemical behaviours of the occluded anode of Cr13, 1Cr18Ni9Ti and 1Cr18Ni9 stainless steels in simulating anolytes, it is demonstrated experimentally that, protection potential against pitting corrosion (E_p) is a microscopic reflection of repassivation within the pit in pitting corrosion system, not the immunity potential or the corrosion potential of the pit of the system. Thus, various conjuctures on the significance of the potential are clarified.
出处
《腐蚀科学与防护技术》
CAS
CSCD
1993年第4期244-248,共5页
Corrosion Science and Protection Technology
关键词
不锈钢
缝隙腐蚀
保护电位
研究
protection potential
pitting corrosion
crevice corrosion
significance
