梁成浩, 杨大智. 铜基形状记忆合金在人工体液中的腐蚀行为[J]. 工程科学学报, 1996, 18(S2): 1-5. DOI: 10.13374/j.issn1001-053x.1996.s2.001
引用本文: 梁成浩, 杨大智. 铜基形状记忆合金在人工体液中的腐蚀行为[J]. 工程科学学报, 1996, 18(S2): 1-5. DOI: 10.13374/j.issn1001-053x.1996.s2.001
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Liang Chenghao, Yang Dazhi. Research on the Corrosion Behaviour of Cu-Based Shape Memory Alloy in Physiological Saline Solutions[J]. Chinese Journal of Engineering, 1996, 18(S2): 1-5. DOI: 10.13374/j.issn1001-053x.1996.s2.001
Citation: Liang Chenghao, Yang Dazhi. Research on the Corrosion Behaviour of Cu-Based Shape Memory Alloy in Physiological Saline Solutions[J]. Chinese Journal of Engineering, 1996, 18(S2): 1-5. DOI: 10.13374/j.issn1001-053x.1996.s2.001
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铜基形状记忆合金在人工体液中的腐蚀行为

Research on the Corrosion Behaviour of Cu-Based Shape Memory Alloy in Physiological Saline Solutions

    摘要
  • 摘要: 采用浸泡试验和电化学技术对CuZnAl形状记忆合金在人工液体中的腐蚀行为进行了研究。结果表明,CuznAl形状记忆合金的腐蚀形式为脱锌腐蚀。CuZnAl形状记忆合金的耐腐蚀性优于未经记忆效应处理的同成分合金。该合金耐蚀的原因是,由于单相马氏体组织具有记忆行为和超弹性,改善了表面电化学行为,促进了钝化,从而抑制了阳极活性溶解。

     

    Abstract: The corrosion behaviour of CuZnAl shape memory alloy in physiological saline solutions has been investigated with immersion test and electrochemical measurement techniques. The results showed that the corrosion form of shape memory alloy was dezincification mechanism. The corrosion resistance of CuZnAl shape memory alloy was such better than annealed CuZnAl alloy. It is mainly related with the martensite phase which has the effects of shape memory and superelasticity improved electochemical behaviour in surface of alloy and increased passivation ability.Thus supressed anodic active dissolution.

     

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