【材华讲坛】Nanostructured Lightweight Alloys: Tuning Microstructure and Properties

乐投电竞竞猜时间:2021-01-19浏览:214供图:审阅:来源:乐投电竞竞猜

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报告题目:NanostructuredLightweight Alloys: Tuning Microstructure and Properties

报 告 人:Jürgen Eckert

报告时间:2021年1月21日16:00-17:00

报告地点:腾讯会议466 844 815

主办单位:校科协、材料科学与技术学院

报告人简介:

Jürgen Eckert教授,奥地利科学院院士,埃里希·施密德材料科学研究所所长,奥地利里奥本大学材料科学系教授。2006-2015,曾担任德国德累斯顿莱布尼茨固体材料研究所(IFW Dresden)复杂材料研究所所长,德累斯顿工业大学教授。主要研究领域包括材料物理,亚稳态材料,结构-性能的相关性以及先进材料的结构和物理特性。目前是奥地利科学院和欧洲科学院委员、材料研究学会(MRS)会员。曾获德国研究基金会的Gottfried Wilhelm Leibniz奖,Deutsche Gesellschaft für Materialkunde(DGM)的DGM奖,欧洲研究理事会的ERC-Advanced Grant,IS-MANAM高级科学家奖,中科院Hsun Lee奖等10余项,合作发表论文1100多篇。

报告摘要:

Among different processing routes, powdermetallurgy and rapid quenching have large potential for development of novelhigh-performance materials thanks to excellent control over phase andmicrostructure selection, and related physical and mechanical properties. Thisoverview describes methods and process variables employed for synthesis ofadvanced nanostructured lightweight metallic materials. These methods includerapid quenching and mechanical attrition for the production of metastablematerials, powder consolidation to create bulk specimens with the desiredmicrostructure and properties, and additive manufacturing for fabrication ofparts with complex geometries and modulated meso-scale microstructures.Experimental data for the resulting structures for single- and multi-phasematerials will be described for selected materials, including nanostructuredand ultrafine-grained phases, quasicrystals, composites and metallic glasses,and the mechanisms responsible for phase and microstructure formation and therelated properties will be discussed. Consideration of the problems andchallenges for bulk processing will also be addressed in order to derive designaspects and processing guidelines for property optimization of nanostructuredmetallic materials.