1. 毕业设计（论文）的内容和要求
本课题研究背景：作为轻质工程结构材料的镁合金由于其资源储备丰富、密度小、比强度高、光泽性好、导热导电能力强、生物兼容性好，而成为轻量化结构材料研究热点，然而镁基体表面耐蚀性差这一关键问题，一直是制约镁合金广泛使用的关键问题科学。
另外，大量实验报道显示镁合金在Cl存在的环境下表面腐蚀破坏速率急剧增大。
合金化提高镁合金表面耐蚀性和降低氯在镁表面的吸附能是有效提高镁合金在含氯环境下耐蚀性的有效途径。
2. 参考文献
[1] B.L. Mordike and T. Ebert, Magnesium Properties- applications - potential, Mater. Sci. Eng. A 302 (2001) 37-45.[2] B. Hammer and J.K. Nrskov, Electronic factors determining the reactivity of metal surfaces, Surface Science 343 (1995) 211-220. [3] N. Hara, Y. Kobayashi, D. Kagaya, and N. Akao, Formation and breakdown of surface films on magnesium and its alloys in aqueous solutions, Corros. Sci. 49 (2007) 166-175.[4] Alan F. Wright, Peter J. Feibelman, and Susan R. Atlas, First-principles calculation of the Mg (0001) surface relaxation, Surface Science 302 (1994) 215-222.[5] P.T. Sprunger, K. Pohl, H.L. Davis, and E.W. Plummer, Multilayer relaxation ofthe Mg (0001) surface [J]. Surface Science Letters 297 (1) (1993) L48-L54.[6] Peter J. Feibelman, Relaxation of hcp (0001) surfaces: A chemical view, Physical Review B 53(20) (1996-ケ) 13740-13746. [7] J.L. Witten and H. Yang, Theory of chemisorption and reactions on metal surfaces [J]. Surf. Sci. Rep. 24 (1996) 55-59. [8] Y.H. Duan, S.G. Zhou, Y. Sun, and M.J. Peng, The electronic structure and phase diagram of chlorine adsorption on Mg (0001) surface [J]. Computational Materials Science 84 (2014) 108-114.[9] Zhe Luo, Hong Zhu, Tao Ying, Dejiang Li, Xiaoqin Zeng, First principles calculations on the influence of solute elements and chlorine adsorption on the anodic corrosion behavior of Mg (0001) surface, Surface Science 68-74 (2018) 672-673.[10] Y.H. DUAN, Adsorption of fluorine and chlorine on Mg (0001) surface: A density functional theory investigation [J]. Trans. Nonferrous Met. Soc. China 24 (2014) 1844-1852.[11] Ming Chen, Xiao-Bao Yang, Jie Cui, Jia-Jun Tang, Li-Yong Gan, Min Zhu, and Yu-Jun Zhao, Stability of transition metals on Mg (0001) surfaces and their effects on hydrongen adsorption, International [J]. Hydrogen Energy 37 (2012) 309-317.[12] Ming Chen, Zhen-Zhun Cai, Xiao-Bao Yang, Min Zhu, and Yu-Jun Zhao, Theoretical study of hydrogen dissociation and diffussion on Nb and Ni co-doped Mg (0001): A synergistic effect, Surface Science 606 (2012) L45-L49.
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