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| 银离子注入Mg-Ca-Zn合金在模拟体液中的耐腐蚀性研究 | |
| 引用本文： | 毛丽贺,王玉林,万怡灶,何 芳,黄 远. 银离子注入Mg-Ca-Zn合金在模拟体液中的耐腐蚀性研究[J]. 稀有金属材料与工程, 2010, 39(12): 2075-2078 |
| 作者姓名： | 毛丽贺 王玉林 万怡灶 何 芳 黄 远 |
| 作者单位： | 1. 天津大学,天津,300072;天津市材料复合与功能化重点实验室,天津,300072;天津工业大学,天津300160 2. 天津大学,天津,300072 3. 天津大学,天津,300072;天津市材料复合与功能化重点实验室,天津,300072 |
| 基金项目： | Tianjin Science and Technology Project(07ZCKFSF01100) |
| 摘 要： | 研究了Mg-1.0Ca-0.3Zn合金在银离子剂量为1.5×1017 cm-2注入条件下，在模拟体液(simulated body fluid，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，合金的表面硬度和弹性模量增加，表面硬度在250 nm深度达到最大；同时，合金的极化阻力增加，提高了合金的耐腐蚀性能；在1~48 h内SBF溶液的pH值逐渐增加，加快了SBF溶液的碱化 |
| 关 键 词： | 镁合金；离子注入；耐腐蚀性；生物材料 |
| 收稿时间： | 2009-12-25 |
Corrosion Resistance of Ag-ion Implanted Mg-Ca-Zn Alloys in SBF |
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| Mao Lihe,Wang Yulin,Wan Yizao,He Fang and 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 | |
| Authors: | Mao Lihe Wang Yulin Wan Yizao He Fang Huang Yuan |
| Affiliation: | Tianjin University, Tianjin 300072, China |
| 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. |
| Keywords: | magnesium alloys ion implantation corrosion resistance biomaterials |
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