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6月18日下午15:00-16:30

报告人：Xipeng Tan （National University of Singapore）

报告地点：清华大学逸夫技术科学楼A205学术报告厅

邀请人：陈浩老师

报告题目：Microstructure engineering for enhanced mechanical performance of 3D-printed steels

报告简介：

Additive manufacturing (AM), colloquially known as 3D printing offers unprecedented design flexibility and near-net processing capability, but achieving optimal mechanical performance in 3D-printed steels remains a critical challenge due to complex thermal cycles and rapid solidification. This seminar explores the role of microstructure engineering in tailoring the properties of 3D-printed steels. Key strategies include controlling solidification structures and promoting columnar-to-equiaxed transition. Emphasis will be placed on the manipulation of grain size, morphology, and crystallographic texture to enhance strength and ductility. Case studies will illustrate how process-microstructure-property relationships can be leveraged to design and build advanced steels with superior mechanical performance. Advanced characterization tools and computational models will also be discussed for understanding and predicting microstructural evolution. This seminar aims to highlight the critical role of microstructure engineering in bridging the gap between AM processing and high-performance structural applications in steels.

报告人简介：

Dr. Tan Xipeng (谭喜鹏) is currently a tenure-track Assistant Professor in the Department of Mechanical Engineering, National University of Singapore. He also holds the courtesy joint appointment in the Department of Materials Science and Engineering. He received his PhD in materials science from the Institute of Metal Research (Shenyang IMR), Chinese Academy of Sciences in 2013. After his postdoctoral training on atom probe tomography in France, he joined the Nanyang Technology University as a Senior Research Fellow working on metal additive manufacturing. Dr. Tan’s main research interest lies in microstructure design and control strategies for high-performance metal additive manufacturing. He published more than 60 peer-reviewed journal papers in metallurgy and additive manufacturing, such as Nature Communications, Acta Materialia, NPG Asia Materials, Additive Manufacturing, Scripta Materialia, etc., including 7 Highly Cited Papers in terms of Web of Science. His recent publications have received more than 8000 citations in Google Scholar. He delivered more than 10 invited talks in the international conferences and workshops in the past 5 years. He is an editorial board member of Advanced Powder Materials.