报告题目：Toughening mechanism of amorphous alloy matrix composites and microstructure designing

报告人：姜云鹏 博士

报告时间：2017年4月26日（周三）10:10 AM

报告地点：A18-209会议室

主办单位: 航空宇航学院、航空航天交叉研究院、机械结构力学及控制国家重点实验室

 

The amorphous alloys do have many excellent mechanics, physics and chemistry properties, and are considered to be the next generation advanced materials. However, their inherent zero ductility seriously impede their wide applications in the related structural engineering. In order to improve their tensile ductility at room temperature, designing and introducing a novel micro-deformation mechanism in these alloys becomes a challenging issue, which should be of scientific significance and technological interest. As one of the main toughening measures, amorphous alloy matrix composites have a wide designing range and toughening prospective. However, the latest studying on the inherent micro-deformation evolution is far away from an essential understanding, and still staying in the qualitative stage. This presentation will introduce the inherent toughening mechanisms in such heterogeneous composites, and exhibit the quantitative relationship between the microstructures and the tensile behaviors by using theoretical model, experiments and numerical modeling together. Finally, some novel microstructure patterns are developed in the composite system to gain a marked improvement in the tensile ductility of amorphous alloys.

 

姜云鹏，现任南京航空航天大学副教授，航空宇航学院特聘研究员。2005年于西北工业大学获固体力学博士学位，2007年获得日本学术振兴会JSPS特别研究员基金，2012年入选教育部新世纪优秀人才计划。主要研究方向为非均质材料的强韧化机理和微结构设计，以及航空结构的高温蠕变研究。先后主持国家自然科学基金、江苏省自然基金和教育部基金等科研项目10余项。发表论文70余篇，其中以第一作者／通讯作者在MSEA，IJDM 和Composite Structures等知名学术期刊上发表SCI论文35篇，论文被引用总次数超过330次。