Joint Seminar by School of Mechanical, Materials and Mechatronic Engineering & Materials Australia
SEMINAR Microscale mechanical behavior of ultrafine-grained materials processed by high-pressure torsion SPEAKER A/Prof Megumi Kawasaki WHERE BLD 32-G01 (IHMRI) DATE Tuesday 20th of September 2016 TIME 10:30-11:30 (presentation) 11:30-12:30 (networking tea)
ABSTRACT The processing of metals through the application of high-pressure torsion (HPT) provides the potential for achieving exceptional grain refinement in bulk solids. These ultrafine grains in the bulk metals usually show superior mechanical and physical properties. Especially, the development of micro-mechanical behavior is observed after significant changes in microstructure after processing and it is of great importance for obtaining practical future applications of these ultrafine-grained (UFG) metals. Accordingly, this presentation demonstrates the basic understanding of processing of UFG materials though the application of HPT and the evolution of microstructure and small-scale deformation behavior through nanoindentation experiments after HPT on various metallic alloys and a metal matrix nanocomposite. Special emphasis is placed on demonstrating the essential microstructural changes of these materials with increasing straining by HPT and the evolution of the micromechanical responses in these materials by measuring the strain rate sensitivity
ABOUT THE SPEAKER Megumi Kawasaki is an Associate Professor at Division of Materials Science and Engineering, Hanyang University, Korea. She got B.S. on 2002 at Metallurgy and Materials Science, Osaka Prefecture University, Japan; 2004 M.S., Materials Science, University of Southern California ; 2007 Ph.D., Materials Science, University of Southern California. Her research interests includes: Processing of ultrafine-grained and nano-structured materials through severe plastic deformation, creep properties, tensile properties and the deformation mechanisms of ultrafine-grained materials, superplasticity and cavity development in metallic materials, investigating microstructural evolution using electron microscopy, mico-/nano-mechanics of ultrafine-grained materials.
She has published 104 journal papers and 20 conference proceeding with H-index 25. There are 8 invited talks and keynote lectures in international conference. She is an Adjunct Research Associated Professor at Aerospace & Mechanical Engineering, University of Southern California. She was awarded Early Career Award from the Korean Institute of Metals and Materials in April 2016.
A/Prof. Megumi Kawasaki
Division of Materials Science and Engineering
After the presentation, you are welcome to join the network morning tea with A/Prof. Megumi Kawasaki on BLD 32-G01 (HMRI) from 11:30-12:30.