Effect of Hydrogen on Electrochemical Behavior and Stress Corrosion Cracking in NaNO<sub>2</sub> Solution for Copper

Qiao Lijie; Wang Song; Liu Lun; Huang Zhenzhong; Chu Wuyang; Xiao Jimei

doi:10.13374/j.issn1001-053x.1995.06.016

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Article Navigation > Chinese Journal of Engineering > 1995 > 17(6): 572-575,579

Qiao Lijie, Wang Song, Liu Lun, Huang Zhenzhong, Chu Wuyang, Xiao Jimei. Effect of Hydrogen on Electrochemical Behavior and Stress Corrosion Cracking in NaNO2 Solution for Copper[J]. Chinese Journal of Engineering, 1995, 17(6): 572-575,579. doi: 10.13374/j.issn1001-053x.1995.06.016

Citation:

Qiao Lijie, Wang Song, Liu Lun, Huang Zhenzhong, Chu Wuyang, Xiao Jimei. Effect of Hydrogen on Electrochemical Behavior and Stress Corrosion Cracking in NaNO₂ Solution for Copper[J]. Chinese Journal of Engineering, 1995, 17(6): 572-575,579. doi: 10.13374/j.issn1001-053x.1995.06.016

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Effect of Hydrogen on Electrochemical Behavior and Stress Corrosion Cracking in NaNO₂ Solution for Copper

doi: 10.13374/j.issn1001-053x.1995.06.016

Department of Matevials physics, USTB, Beijing 100083, PRC

Received Date: 1994-04-25
Available Online: 2021-09-06

Abstract

Abstract

Ultimate tensile strength, elongation and area reduction of charged specimen with hydrogen were the same as that of uncharged specimen, i.e., there is no hydrogen embrittlement for copper. However, fracture stress and fracture time of SCC of charged specimen in NaNO₂ solution were lower than that of uncharged specimens,i.e., hydrogen enhanced the suscepetibility to SCC for Cu. On the other hand, Hydrogen reduced corrosion potential and impedance.
- copper,
- nitrite solution,
- stress corrosion cracking,
- hydrogen