Inhibition of chloride pitting corrosion of stainless steels by NaNO2

2019-07-19 10:17:47

corrosion potential stainless pitting

责任者: Pu, C.C.;Wu, J.K. 单位: Institute of Materials Engineering, National Taiwan Ocean University, Keelung, Taiwan 来源出处: Corrosion Prevention and Control,2003,50(4):155-160 摘要: The effect of sodium nitrite on the pitting corrosion of four stainless steels in 3.5% NaCl solution has been studied. Cyclic anodic potentiodynamics was used to evaluate the pitting corrosion resistance. Increasing the concentration of NaNO2 in 3.5% NaCl solutions decreases the protection potential, raises the pitting potential, and inhibits pitting corrosion of stainless steels. 关键词: Stainless steel;Pitting;Corrosion;Sodium compounds;Corrosion resistance;Pitting potential