發(fā)布時(shí)間：2018-07-20 11:44

【摘要】：對(duì)固溶態(tài)Mg-Nd-Sr-Zr合金進(jìn)行了釓(Gd)離子注入改性處理;采用SRIM 2008軟件對(duì)Gd離子注入過(guò)程進(jìn)行了模擬分析;采用光學(xué)顯微鏡(OM)觀察了鎂合金的顯微組織,并利用X射線衍射儀(XRD)分析改性層中的物相組成,同時(shí)結(jié)合X射線光電子能譜(XPS)表征改性層中化學(xué)成分與元素價(jià)態(tài),采用電化學(xué)實(shí)驗(yàn)及析氫實(shí)驗(yàn)評(píng)價(jià)了基體鎂合金與注入鎂合金在模擬體液(SBF)中的生物腐蝕行為。結(jié)果表明:Gd離子注入有助于提高固溶態(tài)Mg-Nd-Sr-Zr合金在SBF中耐生物腐蝕性能,且當(dāng)注入劑量為2.5×10~(16)cm~(-2)時(shí),注入鎂合金的耐生物腐蝕性能最佳。
[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.
【作者單位】： 南京工程學(xué)院材料工程學(xué)院;南京工程學(xué)院江蘇省先進(jìn)結(jié)構(gòu)材料與應(yīng)用技術(shù)重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51301089) 江蘇省“青藍(lán)工程”資助項(xiàng)目~~
【分類(lèi)號(hào)】：TG146.22;R318.08

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