乔利杰, 汪松, 刘纶, 黄震中, 褚武扬, 肖纪美. 氢对铜电化学行为和NaNO2溶液应力腐蚀的影响[J]. 工程科学学报, 1995, 17(6): 572-575,579. DOI: 10.13374/j.issn1001-053x.1995.06.016
引用本文: 乔利杰, 汪松, 刘纶, 黄震中, 褚武扬, 肖纪美. 氢对铜电化学行为和NaNO2溶液应力腐蚀的影响[J]. 工程科学学报, 1995, 17(6): 572-575,579. DOI: 10.13374/j.issn1001-053x.1995.06.016
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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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氢对铜电化学行为和NaNO2溶液应力腐蚀的影响

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

    摘要
  • 摘要: 纯铜充氢后并不改变组织结构和晶粒大。而且抗拉强度、延伸率和面缩率也不变化,这表明铜没有氢脆。在NaNO2溶液中,氢使纯铜的腐蚀电位、反应电阻降低,使应力腐蚀开裂敏感性升高,断口形貌不发生变化。

     

    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.

     

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