Pitting Corrosion of Ni_Based Alloy in Thiosulfate_ion Containing Chloride Solutions

Authors

Yungfa Lee, State Key Laboratory for Physical Chemistry of Solid Surface, Inst. of Phys. Chem.,Dept.of Chem.,Xiamen Univ.,Xiamen 361005;
Tingyu Wang, Dept. of Materials Sci. and Engin.,Cheng kung Univ.,Tainan;
Wenta Tsai, Dept. of Materials Sci. and Engin.,Cheng kung Univ.,Tainan;

Corresponding Author

Wenta Tsai

Abstract

The effect of thiosulfate ion on the pitting corrosion behavior of Ni_Based Alloy 690 in chloride solution was investigated.In plain sodium thiosulfate solution,Alloy 690 was immune to pitting corrosion. However, the addition of low concentration of sodium thiosulfate can enhance the initiation of pitting corrosion of Alloy 690. Nevertheless, inhibition of pitting corrosion was observed at high concentration of addition.

Keywords

Pitting corrosion, Alloy 690, Chloride solution, Thiosulfate ion

DOI Link

https://doi.org/10.61558/2993-074X.3153

Publication Date

1999-02-28

Online Available Date

1999-02-28

Revised Date

1999-02-28

Received Date

1999-02-28

Recommended Citation

Yungfa Lee, Tingyu Wang, Wenta Tsai. Pitting Corrosion of Ni_Based Alloy in Thiosulfate_ion Containing Chloride Solutions[J]. Journal of Electrochemistry, 1999 , 5(1): Article 7.
DOI: 10.61558/2993-074X.3153
Available at: https://jelectrochem.xmu.edu.cn/journal/vol5/iss1/7

References

1ChoiD，WasG．Pitgrowthinaloy600／690steamgeneratortubesinsimulatedconcentratedenvironments（Cu2＋，Cl－，andSO42－）．Corosion，1990，46：1002YangIJ．Localizedcorrosionofaloy600inthiosulfatesolutionat25℃．Corosion，1993，49：5763HoJT，YuGP．Pitingcorrosionofinconel600inchlorideandthiosulfateanionsolutionsatlowtemperature．Corosion，1992，48：1474NewmanRC，IssacsHS，AlmanB．Efectofsulfurcompoundsonthepitingbehavioroftype304stainlessteelinnear＿neutralchloridesolutions．Corosion，1982，38：2615IofaZA．Mechanismoftheefectofhydrogensulfideandinhibitorsonironcorosioninacidsolutions．ProtectionofMetal，1980，16：220