Effect of Electrochemical Property of UNS J91450 Stainless Steel on Stress Corrosion Cracking in Hydrogen Sulfide Solutions

Authors

Zhi-yong LIU, School of Materials Science and Engineering University of Science and Technology Beijing,Beijing 100083,China;
Chao-fang DONG, School of Materials Science and Engineering University of Science and Technology Beijing,Beijing 100083,China;
Xiao-gang LI, School of Materials Science and Engineering University of Science and Technology Beijing,Beijing 100083,China;
Li-xian WANG, Beijing Sanju Environment Protective and Advanced Materials Co.Ltd,Beijing 100080,China;

Abstract

Effect of electrochemical behaviours on stress corrosion cracking(SCC) of UNS J91450 stainless steel in hydrogen sulfide environment was investigated using slow-strain-rate test(SSRT) and electchemial techniques.Results show that UNS J91540 stainless steel was susceptible to SCC in varying H2S solutions,and the SCC susceptibility reduced with the increase of pH value.The electrochemical property plays an important role in the SCC occurrence,as a combined effect of hydrogen embritlement and anodic dissolution at SCC cracktip at open circuit potential.In the solution with a lower pH the hydrogen revolution was intensive and the cracktip anodic dissolution was weaker,however,in the higher pH solution the reaction of hydrogen revoluting was less intensive and the cracktip anodic dissolution intensifie.Hydrogen embrittlement exhibited more important impact on SCC occurrence of UNS J91540 stainless steel.

Keywords

UNS J91450 stainless steel, hydrogen sulphide, electrochemical property, stress corrosion cracking

DOI Link

https://doi.org/10.61558/2993-074X.1972

Publication Date

2009-05-28

Online Available Date

2009-05-28

Revised Date

2009-05-28

Received Date

2009-05-28

Recommended Citation

Zhi-yong LIU, Chao-fang DONG, Xiao-gang LI, Li-xian WANG. Effect of Electrochemical Property of UNS J91450 Stainless Steel on Stress Corrosion Cracking in Hydrogen Sulfide Solutions[J]. Journal of Electrochemistry, 2009 , 15(2): 157-162.
DOI: 10.61558/2993-074X.1972
Available at: https://jelectrochem.xmu.edu.cn/journal/vol15/iss2/7