湖南大学“岳麓材料杰出学者论坛”第285期
题 目：梯度序构金属材料：设计、性能与机理
报告人：卢磊 研究员
地 点：中四栋一楼会议室
时 间：2025年1月12日(周日)下午16: 30-17: 30
主持人：吴正刚 教授
邀请人：材料科学与工程学院
报告摘要：
Breaking the trade-off between strength and ductility, strain hardening and fracture toughness has long been a great challenge for high-strength metallic materials. Recently we found that various spatial gradient structured materials exhibit some unprecedented mechanical properties. In this talk, I aim at reviewing a critical assessment of the state-of-the-art of a few gradient structured materials, such as dual-gradient nanotwinned (GNT) Cu as well as gradient cell-structured alloys, covering topics ranging from design, fabrication, mechanical properties and underlying the fundamental deformation mechanism. We discuss the deformation behaviors induced by structural gradients, stress/strain gradients, new dislocation structures and interactions to unravel the mechanistic origin of extra strengthening and work hardening associated with gradient structures. The findings provide a promising paradigm for designing high performance with gradient architecture.
报告人简介：
卢磊，博士，女，中国科学院金属研究所研究员、博士生导师，国家杰出青年科学基金、国家级科技创新领军人才获得者, 中国科学技术部“纳米前沿"重点专项总体专家组副组长等。现任国际纳米材料、国际材料强度大会委员会委员；国际材料领域旗舰Acta Materialia 和Scripta Materialia 期刊编辑。主要从事多尺度高性能金属材料的设计、制备、力学性能及变形机理的基础研究。发表 SCI 论文 160余 篇(其中包括Science 7 篇, Nature 2 篇)，被 SCI文章他引 >25000 次，获国内发明专利 15 项，国际发明专利 6项。近年来在国际学术会议做大会、主旨和邀请报告120 余次。曾获中国青年女科学家奖、汤森路透“全球高被引用科学家”、爱思唯尔“中国高被引学者”、“TMS Brimacombe Medal Award”等奖项。
