Senior researcher Xiaodan ZHANG from Technical University of Denmark, invited by Professor Jun ZHANG of the Institute of Advanced Manufacturing Technology, will visit the School of Mechanical Engineering on December 26,2019 and give a lecture.
The lecture information is as follows:
Lecture Time： 14: 30-16: 00 PM, December 26,2019
Lecture Location：Meeting Room A420, West Building 5, Qujiang Campus
Lecturer： Xiaodan ZHANG,Senior Researcher, Technical University of Denmark
Lecture Title： Local stress and strain in heterogeneous deformation microstructure of metals
Abstract：
Heterogeneity is ubiquitous in the industrial production of metallic components, due to friction, wear and the heterogeneous distribution of stress and strain. For investigation of the mechanical behavior of heterogeneity in deformed metals, a methodology is required to account for variations of structural parameters and strength on multiple length scales from the nanometer to the macroscopic scale. Two cases are given: a graded nanostructure in shot-peened low carbon steel and a heterogeneous structure of a compressed AA 1050 ring under nearly full sticking conditions. To underpin the findings in the heterogeneous structure, the same techniques were applied in an analysis of the homogeneous structures. The analyses support the idea that the local-region microstructure in a heterogeneous structure evolves in accordance with universal mechanisms and principles established for the deformation microstructure of polycrystalline metals.
Lecturer Introduction：Xiaodan ZHANG
*Degrees:
Doctor of Engineering (09 July, 2009), Department of Materials Science and Engineering, Tsinghua University, Beijing, China, 2009
Bachelor of Engineering, Department of Materials Science and Engineering, Central South University, China, 2002
*Positions:
01. 2018 – present: Senior Researcher, Department of Mechanical Engineering, DTU, Denmark
05. 2016 – 12. 2017: Senior Researcher, Department of Wind Energy, DTU, Denmark
06. 2012 – 04. 2016: Researcher, Department of Wind Energy, DTU, Denmark
01. 2012 – 05. 2012: Post Doc, Department of Wind Energy, DTU, Denmark
08. 2009 – 12. 2011: Post Doc, Materials Research Division, Ris➢, Denmark
*Research Area:
Heterogeneous microstructure formation and its thermomechanical response;
Surface optimization by mechanical and chemical treatments;
Advanced in-situ/ex-situ mechanical testing in electron microscopes;
Microstructure-property relationships of metals;
Failure analysis of metallic components.
