Electrochemical test technology and surface analysis method were employed to investigate the pitting corrosion of Cu-Zn-Al shape memory alloy in simulated uterine fluid. The results showed that the breakage of the breakingrenovating equilibrium of surface layers resulted in the pitting corrosion of Cu-Zn-Al shape memory alloy in simulated uterine fluid. The development of pitting corrosion was controlled by dissolution of surface layers. The critical pitting corrosion potential was 1.70 VsCE. The kinetics equation for the development of pitting corrosion for Cu-Zn-Al shape memory alloy in simulated uterine fluid was i0=465.68 t-0.5+1.5. Pitting appearances of pits could be two types: tortoise-shell, and anomaly abscess. Cl- ion facilitated the pitting corrosion of Cu-Zn-Al shape memory alloy by competing adsorption and concentrating on alloy surface at high positive potential.
参考文献
| [1] | JihuiWANG;Xiaoxia JIANG;Shizhuo LI .[J].Chin JMaterials res,1999,13(01):1. |
| [2] | ZengcaiLIU;Leyun LIN;Shaofeng LIU .[J].腐蚀科学与防护技术,1999,11(02):78. |
| [3] | JihuiWANG;Xiaoxia JIANG;Shizhuo LI .[J].Journal Chinese Society for Corrosion and Protection,1996,16(02):87. |
| [4] | MVRylkina;Yu IKuznetsov;MVKalashnikova;MAEremina .[J].Protection of Metals,2002,38(04):340. |
| [5] | MVRylkina;Yu IKuznetsov;MVKalashnikova .[J].NP reeva Prot Met+,2003,39(02):113. |
| [6] | KHai .[J].DESALINATION,1999,124(01):93. |
| [7] | S. A. Kaluzhina;I. V. Kobanenko .Mechanism of Local Activation of Copper in the Presence of Chloride and Sulfate Ions at Elevated Temperature and Heat Transfer[J].Protection of Metals,2001(3):237-243. |
| [8] | KHai .[J].Optics and Laser in Engineering,2000,33(01):1. |
| [9] | FatihaElFeninat;Gaetan Laroche;Michel Fiset;Diego Mantovani .[J].Advances in Engineering Materials,2002,4(03):91. |
| [10] | JVanHumeeck .[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,1999,134:273-275. |
| [11] | ChenghaoLIANG;Haixia GUO;Wan CHEN .[J].Journal of Advanced Materials,2003,35(04):8. |
| [12] | 梁成浩,陈邦义,陈婉.Tyrode's人工体液中重铬酸钾法钝化Cu-Zn-Al形状记忆合金的耐蚀性研究[J].稀有金属材料与工程,2004(03):271-274. |
| [13] | angyiCHEN;Chenghao LIANG;Daojun FU .[J].Chinese Journal of Nonferrous Met,2004,14(04):596. |
| [14] | HuashiXUE;Naixin XU;Chengdian ZHANG .[J].Contraception,1998,57(01):49. |
| [15] | YanGAO .[J].Nonferrous Metals,1997,49(03):82. |
| [16] | NaichaoSI .[J].Acta Metall Sin,1999,35(11):1160. |
| [17] | ZhenangZHANG;Shizhong HUO;Baoyu CUI .[J].Dalinan Univ Technol,1998,38(11):595. |
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