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銀離子注入Mg-Ca-Zn合金在模擬體液中的耐腐蝕性研究
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Corrosion Resistance of Ag-ion Implanted Mg-Ca-Zn Alloys in SBF
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Tianjin Science and Technology Project (07ZCKFSF01100)

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    摘要:

    研究了Mg-1.0Ca-0.3Zn合金在銀離子劑量為1.5×1017 cm-2注入條件下，在模擬體液(simulated body fluid，SBF)中的耐腐蝕性。通過納米壓痕和三電極體系法對合金的表面硬度和彈性模量、在SBF中的極化曲線測定表明：經(jīng)過銀離子注入后，合金的表面硬度和彈性模量增加，表面硬度在250 nm深度達到最大；同時，合金的極化阻力增加，提高了合金的耐腐蝕性能；在1~48 h內(nèi)SBF溶液的pH值逐漸增加，加快了SBF溶液的堿化

    Abstract:

    The corrosion resistance of Ag ion implanted with dose of 1.5×1017 cm-2 for Mg-1.0 Ca-0.3 Zn magnesium alloy in the simulated body fluid was investigated. The surface hardness and elastic modulus of the alloy and the polarization curve in the SBF were obtained by Nano Snick and three electrode system, respectively. The results indicate that the hardness and the elastic modulus are improved obviously after the implantation of Ag ions, the surface hardness reaches the maximum at a depth of 250 nm below the alloy surface. Meanwhile, the polarization resistance is strengthened, and consequently the corrosion resistance of the alloy is improved. Moreover, the pH value of the SBF within 48 h increases gradually and the alkalization of the SBF is accelerated.

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毛麗賀,王玉林,萬怡灶,何 芳,黃 遠.銀離子注入Mg-Ca-Zn合金在模擬體液中的耐腐蝕性研究[J].稀有金屬材料與工程,2010,39(12):2075~2078.[Mao Lihe, Wang Yulin, Wan Yizao, He Fang, Huang Yuan. Corrosion Resistance of Ag-ion Implanted Mg-Ca-Zn Alloys in SBF[J]. Rare Metal Materials and Engineering,2010,39(12):2075~2078.]
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  • 收稿日期:2009-12-25
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