9月23日的《材料研究进展》课程中，张泽院士邀请了澳大利亚Monash大学的聂建峰教授为同学们授课，此次课将围绕铝合金/镁合金的显微结构与性能关系展开。除选修的同学外，还欢迎感兴趣的同学参加旁听（如旁听，请坐后排）。
授课内容简介如下：
Characterisation of Precipitates in Mg and Al Alloys using HAADF-STEM
Jian-Feng Nie
Department of Materials Engineering, Monash University, Victoria 3800, Australia
Magnesium and aluminium alloys have gained increasing applications in the automotive, aircraft and aerospace industries. Many of these light alloys owe their high strength to nano-scale precipitates that are produced by an age hardening process. Despite the importance of the precipitates at both practical and fundamental levels, their structures have not been unambiguously established. Further improvement in alloy strength has been hindered by a lack of understanding of precipitate crystal structures and microstructural factors that are important in controlling the nucleation and growth of these precipitates. This presentation will show recent results on the characterization of precipitates using conventional transmission electron microscopy and high-angle annular dark-field scanning transmission electron microscopy. It will be demonstrated that many precipitate phases in magnesium alloys are incorrectly described in the literature and that even the well-known precipitate phases in aluminium alloys in fact exhibit structural features hitherto unreported.
