清华大学材料科学与工程研究院《材料科学论坛》学术报告
报告时间：2025年11月3日下午15:00-16:30
报告人：Gerhard Wilde教授（德国明斯特大学）
报告地点：清华大学逸夫技术科学楼B521会议室
邀请人：陈娜老师
报告题目：The Role of Minor Alloying in the Plasticity of Bulk Metallic Glasses
报告简介：
Minor alloying is of fundamental as well as technological interest and refers to the addition of small concentrations of alloying elements to tune the properties of a given host material. In the context of metallic glasses, minor alloying was shown to affect the glass forming ability and properties including the mechanical performance. However, in view of the richness of local structural features in metallic glasses, the impact of small compositional variations is striking and calls for an analysis of the structural changes and the structure-property correlations. As a case example, a Pd-based bulk metallic glass was manipulated by minor additions of either Fe or Co. The alloying effects were extreme, showing either exceptional ductility upon Co addition or immediate catastrophic failure upon Fe addition. The underlying structural and dynamic modifications correlated to the minor alloying are discussed with respect to the local structural diversity that is affected by minor alloying.
报告人简介：
Dr. Gerhard Wilde is Director of and Professor at the Institute of Materials Physics at the University of Muenster in Germany. His research areas include nanostructured and nanocrystalline materials, metallic glasses and nanoglasses, high-entropy alloys, microstructure evolution and defects and diffusion in solids. He obtained several prestigious fellowships including Feodor-Lynen fellowship of the Alexander von Humboldt-Foundation at the University of Wisconsin-Madison, USA and Emmy-Noether fellowship by DFG. In 2010 he received the CSIR-Humboldt Research Award for lifetime scientific achievements. He is a member of the German Physical Society, the U.S. Minerals, Metals and Materials Society (TMS) and the Materials Research Society (MRS) of the USA and has been elected several times as “outstanding reviewer of the year” by Acta Materialia and Scripta Materialia.