1. 毕业设计（论文）的内容和要求

镁合金物理性能优异，具有广阔的应用前景，成为21世纪最有发展潜力的商用轻质材料。

其中镁合金的耐蚀性差是制约其发展的重要因素。

稀土元素具有独特的核外电子结构，作为一种重要的合金化元素，已经越来越多的应用个镁合金。

2. 参考文献

1. 刘正, 张奎, 曾小勤, 镁基轻质合金的理论基础及其应用[M], 北京: 机械工业出版社, 2002. 2. 宋光铃, 镁合金腐蚀与防护[M], 化工出版社, 2006. 3. 兰伟，孙建春，周安若，邱会东，张丁非, 镁合金表面处理技术的研究现状，2006，5(20): 428-430. 4. 卫英慧, 许并社, 镁合金腐蚀防护的理论与实践, 北京, 冶金工业出版社, 2008. 5. Y. Zheng, Z. Wang, A novel periodic dendrite microstructure in Al#8211;La binary alloy, Journal of Crystal Growth, 318 (2011)1013#8211;1015. 6. M. Su, J. Zhang, Y. Feng, Y. Bai, W. Wang, Z. Zhang, F. Jiang, Al-Nd intermetallic phase stability and its effects on mechanical properties and corrosion resistance of HPDC Mg-4Al-4Nd-0.2Mn alloy, Journal of Alloys and Compounds, 691 (2017) 634-643. 7. L. Wang, G. Fang, M. Lee#64258;ang, J. Duszczyk, J. Zhou, Constitutive behavior and microstructure evolution of the as-extruded AE21 magnesium alloy during hot compression testing, Journal of Alloys and Compounds, 622 (2015) 121#8211;129. 8. J. Zhang, Z. Leng, M. Zhang, J. Meng, R. Wu, Effect of Ce on microstructure, mechanical properties and corrosion behavior of high-pressure die-cast Mg#8211;4Al-based alloy, Journal of Alloys and Compounds, 509 (2011) 1069#8211;1078. 9. Q. Yang, X. Liu, F. Bu, F. Meng, T. Zheng, D. Zhang, J. Meng, First-principles phase stability and elastic properties of Al-La binary system intermetallic compounds, Intermetallics, 60 (2015) 92-97. 10. Z. Mao, D. Seidman, C. Wolverton, First-principles phase stability, magnetic properties and solubility in aluminum#8211;rare-earth (Al#8211;RE) alloys and compounds, Acta Materialia, 59 (2011) 3659#8211;3666. 11. Y. Zheng, Z. Wang, S. Zhang, Microstructure of diphase dendrite in Al#8211;35%La alloy during solidification, Journal of Crystal Growth, 362 (2013) 33#8211;37. 12. Q. Yang, K. Guan, X. Qiu, D. Zhang, S. Lv, F.Bu, Y. Zhang, X. Liu, J. Meng, Structures of Al2Sm phase in a high-pressure die-cast Mg#8211;4Al#8211;4Sm#8211;0.3Mn alloy, Materials Science Engineering A, 675 (2016) 396#8211;402. 13. L. Jin, Y. Kang, P. Chartrand, C. Fuerst, Thermodynamic evaluation and optimization of Al#8211;La, Al#8211;Ce, Al#8211;Pr, Al#8211;Nd and Al#8211;Sm systems using the Modified Quasichemical Model for liquids, CALPHAD: Computer Coupling of Phase Diagrams and Thermochemistry, 35 (2011) 30#8211;41. 14. S. Lv, Y. Li, F. Meng, Q. Duan , Q. Yang, X. Liu, J. Meng, Thermodynamic stability of Al11RE3 intermetallic compounds from first-principles calculations, Computational Materials Science, 131 (2017) 28#8211;34. 15. J. Lyndon, R. Gupta, M. Gibson, N. Birbilis, Electrochemical behaviour of the β-phase intermetallic (Mg2Al3) as a function of pH as relevant to corrosion of aluminium#8211;magnesium alloys, Corrosion Science, 70 (2013) 290-293.

3. 毕业设计（论文）进程安排

2017-12-17～2018-01-5 查阅中外文资料，翻译外文资料 要求定期参加讨论 2017-01-06～2018-01-12 撰写开题报告，要求参加开题报告答辩 2017-02-26～2018-03-31 制定实验方案，开展Al2La合金的真空感应熔炼，定期汇报实验进展，参与论文讨论 2018-04-01～2018-04-29 优化熔炼工艺参数，获得致密无缺陷合金铸锭，定期讨论 2018-05-01～2014-05-07 撰写中期报告，参加中期检查答辩 2018-05-08～2018-06-09 研究稀土相在NaCl溶液溶液中的腐蚀行为，总结实验结果，补充实验 参加讨论 2018-06-10～2018-06-14 撰写毕业论文，按时完成毕业论文，参加毕业论文答辩