Gd离子注入对固溶态Mg-Nd-Sr-Zr合金生物腐蚀行为的影响
发布时间：2018-07-20 11:44
【摘要】：对固溶态Mg-Nd-Sr-Zr合金进行了钆(Gd)离子注入改性处理;采用SRIM 2008软件对Gd离子注入过程进行了模拟分析;采用光学显微镜(OM)观察了镁合金的显微组织,并利用X射线衍射仪(XRD)分析改性层中的物相组成,同时结合X射线光电子能谱(XPS)表征改性层中化学成分与元素价态,采用电化学实验及析氢实验评价了基体镁合金与注入镁合金在模拟体液(SBF)中的生物腐蚀行为。结果表明:Gd离子注入有助于提高固溶态Mg-Nd-Sr-Zr合金在SBF中耐生物腐蚀性能,且当注入剂量为2.5×10~(16)cm~(-2)时,注入镁合金的耐生物腐蚀性能最佳。
[Abstract]:The solid solution Mg-Nd-Sr-Zr alloy was modified by gadolinium ion implantation, the process of Gd ion implantation was simulated and analyzed by SRIM 2008 software, and the microstructure of magnesium alloy was observed by optical microscope (OM). The phase composition of the modified layer was analyzed by X-ray diffractometer (XRD), and the chemical composition and the valence state of elements in the modified layer were characterized by X-ray photoelectron spectroscopy (XPS). The biocorrosion behavior of magnesium alloy matrix and implanted magnesium alloy in simulated body fluid (SBF) was evaluated by electrochemical and hydrogen evolution experiments. The results show that the biological corrosion resistance of Mg-Nd-Sr-Zr alloy in SBF can be improved by the implantation of W Gd ion, and when the implantation dose is 2.5 脳 10 ~ (16) cm ~ (-2), the biocorrosion resistance of the implanted magnesium alloy is the best.
【作者单位】： 南京工程学院材料工程学院;南京工程学院江苏省先进结构材料与应用技术重点实验室;
【基金】：国家自然科学基金资助项目(51301089) 江苏省“青蓝工程”资助项目~~
【分类号】：TG146.22;R318.08
本文编号：2133409
[Abstract]:The solid solution Mg-Nd-Sr-Zr alloy was modified by gadolinium ion implantation, the process of Gd ion implantation was simulated and analyzed by SRIM 2008 software, and the microstructure of magnesium alloy was observed by optical microscope (OM). The phase composition of the modified layer was analyzed by X-ray diffractometer (XRD), and the chemical composition and the valence state of elements in the modified layer were characterized by X-ray photoelectron spectroscopy (XPS). The biocorrosion behavior of magnesium alloy matrix and implanted magnesium alloy in simulated body fluid (SBF) was evaluated by electrochemical and hydrogen evolution experiments. The results show that the biological corrosion resistance of Mg-Nd-Sr-Zr alloy in SBF can be improved by the implantation of W Gd ion, and when the implantation dose is 2.5 脳 10 ~ (16) cm ~ (-2), the biocorrosion resistance of the implanted magnesium alloy is the best.
【作者单位】： 南京工程学院材料工程学院;南京工程学院江苏省先进结构材料与应用技术重点实验室;
【基金】：国家自然科学基金资助项目(51301089) 江苏省“青蓝工程”资助项目~~
【分类号】：TG146.22;R318.08
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，本文编号：2133409
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