一、活动主题

学术报告:《Mg Alloy-based Hybrid Nano Composites For Potential Auto Components》

二、活动时间

2023年11月16日（周四）16:00-18:00

三、活动地点

金花校区西纺报告厅

四、主讲嘉宾

胡宏发教授，加拿大温沙大学机械，汽车材料工程系终身正教授。曾任温莎大学机械、汽车与材料工程系主任，美国Ryobi压力铸造有限公司高级工程师， Meridian铸造有限公司首席冶金学家。加拿大冶金材料学报、加拿大自然科学工程研究委员会，自然科学基金（美国）加拿大冶金季刊主审，担任加拿大采矿冶金协会，美国铸造协会，以及美国汽车研究协会相关分会主席。撰写论文200余篇, 覆盖领域包括镁合金，复合材料，金属铸造，计算机模拟和物理冶金学。

五、主讲内容

Abstract: Light alloy-based metal matrix composites (MMCs) reinforced with alumina (Al₂O₃) fibres and/or nano-size particles were successfully fabricated by preform-squeeze casting techniques under an applied pressure of 90 MPa. Tensile testing was performed and microstructures were analyzed on the squeeze cast unreinforced alloy, fibre reinforced metal matrix composite, and metal (Al) hybrid nano composite containing alumina fibres and nano-particles (MHNC). The microstructure analysis revealed the homogeneity of reinforcements in the matrix alloy. With the addition of fibres, the tensile properties of the fibre-reinforced composites were improved with the considerable reduction of ductility compared with the base alloy. The introduction of additional nano-particles into the metal matrix not only significantly improved the tensile properties of the composites, but also simultaneously restored the ductility reduction caused by the reinforcement of fibres.

六、参加人员

材料、机械相关专业教师、研究生

人事处（教师发展中心） 材料工程学院

2023年11月16日