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Ting Zhu,学术报告
发布日期:2019/9/4

报告人:Ting Zhu

      Woodruff School of Mechanical Engineering

      Georgia Institute of Technology, Atlanta GA 30332, USA

邀请人:刘攀  特别研究员

时间:2019年9月4日上午10:00-11:00

地点:材料科学与工程学院徐祖耀楼A500

报告题目:Mechanics of additive manufacturing and high-entropy alloys

Abstract

Metal additive manufacturing and high-entropy alloys present exciting opportunities for the production of next-generation engineering materials with unprecedented flexibility and performance. In this talk, I will present our recent work on the additive manufacturing of metal alloys (Nature Materials, 2018) and the development of new high-entropy alloys with unique alloy structures and superior mechanical properties (Nature, 2019). Our work harnesses the novel experimental and modeling methods, and focuses on a fundamental understanding of the microstructure and mechanical property relationships. We combined in situ synchrotron X-ray experiments and crystal plasticity finite element simulations to unravel microscale internal stresses in additively manufactured stainless steel. We also combined atomic-resolution chemical mapping and atomistic simulations to elucidate the crucial effects of chemical structures on promoting novel deformation mechanisms and enhancing mechanical properties of high-entropy alloys. The results and insights gained provide a fundamental basis for controlling the manufacturing processes, chemical structures and defect mechanisms to achieve excellent mechanical properties of advanced metal alloys.  

Biography

Ting Zhu is a professor in the George W. Woodruff School of Mechanical Engineering at Georgia Institute of Technology. He received Ph.D. in solid mechanics from Tsinghua University in 1999 and Ph.D. in mechanical engineering from Massachusetts Institute of Technology in 2004. He worked as a postdoctoral associate at Harvard University between 2004-2005. He joined Georgia Tech as an assistant professor in fall 2005. His research is focused on mechanics and materials modeling. He received the Sia Nemat-Nasser Early Career Award from the American Society of Mechanical Engineers and the Young Investigator Medal from the Society of Engineering Science.

 

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