研究了Mg-1.0Ca-0.3Zn合金在银离子剂量为1.5×1017cm-2注入条件下,在模拟体液(simulated body flmd,SBF)中的耐腐蚀性.通过纳米压痕和三电极体系法对合金的表面硬度和弹性模量、在SBF中的极化曲线测定表明:经过银离子注入后,合金的表面硬度和pH值逐渐增加,加快了SBF溶液的碱化.
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.
参考文献
| [1] | 李龙川,高家诚,王勇.医用镁合金的腐蚀行为与表面改性[J].材料导报,2003(10):29-32. |
| [2] | Serre CM;Papillard M;Chavassieux P;Voegel JC;Boivin G .Influence of magnesium substitution on a collagen-apatite biomaterial on the production of a calcifying matrix by human osteoblasts.[J].Journal of biomedical materials research, Part B. Applied biomaterials,1998(4):626-633. |
| [3] | Kuwahara H;Al-abdullat Y;Mazaki N et al.[J].Materials Transactions,2001,42(07):1317. |
| [4] | 黄晶晶,杨柯.镁合金的生物医用研究[J].材料导报,2006(04):67-69. |
| [5] | Mark P Staiger;Alexis M Pietak et al.[J].Biomaterials,2006,27(09):1728. |
| [6] | Li LC;Gao JC;Wang Y .Evaluation of cyto-toxicity and corrosion behavior of alkali-heat-treated magnesium in simulated body fluid[J].Surface & Coatings Technology,2004(1):92-98. |
| [7] | 曹林锋,杜文博,苏学宽,聂祚仁,左铁镛.Ca合金化在镁合金中的作用[J].铸造技术,2006(02):182-184. |
| [8] | Gray J;Luan B .[J].Journal of Alloys and Compounds,2002,336(1-2):88. |
| [9] | Zhu XM;Yang HG;Lei MK .Corrosion resistance of Al ion implanted AZ31 magnesium alloy at elevated temperature[J].Surface & Coatings Technology,2007(15):6663-6666. |
| [10] | Kutsenko L;Fuks D;Kiv A et al.[J].Acta Materialia,2006,54(10):2637. |
| [11] | Zhou H;Chen F;Yao B et al.[J].Surface and Coatings Technology,2007,201(15):6730. |
| [12] | Nakatsugawa I;Martin R;Knystautas E J .[J].Corrosion,1996,38(07):921. |
| [13] | Tadashi Kokubo;Hiroaki Takadama .[J].Biomaterials,2006,27(15):2907. |
| [14] | 胡茂圃.腐蚀电化学[M].北京:冶金工业出版社,1991:96. |
| [15] | Stippich Vera E;wolf G K et al.[J].Surface and Coatings Technology,1998,103-104:29. |
| [16] | Baril G;Pebere N .[J].Corrosion Science,2001,43(03):471. |
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