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研究论文

镍合金在含硫代硫酸根离子之氯化钠水溶液中的孔蚀研究

  • 李永发
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  • 成功大学材料科学及工程学系

收稿日期: 1999-02-28

  修回日期: 1999-02-28

  网络出版日期: 1999-02-28

Pitting Corrosion of Ni_Based Alloy in Thiosulfate_ion Containing Chloride Solutions

  • Lee Yungfa Wang Tingyu Tsai Wenta
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  • (Dept. of Materials Sci. and Engin.,Cheng kung Univ.,Tainan

Received date: 1999-02-28

  Revised date: 1999-02-28

  Online published: 1999-02-28

摘要

本文研究硫代硫酸根离子对镍基690合金在氯化钠水溶液中之孔蚀行为.发现在单纯硫代硫酸钠水溶液中,镍基690合金不发生孔蚀.在氯化钠水溶液中,当添加的硫代硫酸根离子浓度低时,会增进孔蚀的敏感性;当硫代硫酸根离子浓度高时,则反而抑制孔蚀.

本文引用格式

李永发 . 镍合金在含硫代硫酸根离子之氯化钠水溶液中的孔蚀研究[J]. 电化学, 1999 , 5(1) : 18 -24 . DOI: 10.61558/2993-074X.3153

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.

参考文献

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
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