Processing of Ultrafine-Grained Materials Through Severe Plastic Deformation

ChEMS Seminar

Featuring Terence G. Langdon
William E. Leonhard Professor of Engineering and Professor of Aerospace & Mechanical Engineering, Materials Science and Earth Sciences
Viterbi School of Engineering, University of Southern California, Los Angeles

Location: CS 174

Abstract:
Processing through the application of severe plastic deformation (SPD) has become an attractive tool within the last decade because it provides the potential for refining the grain size of polycrystalline metals to the submicrometer, or even the nanometer level.  Several SPD methods are now available but the most promising appear to be High-Pressure Torsion (HPT) and Equal-Channel Angular Pressing (ECAP).  This presentation examines these procedures with special emphasis on the mechanical properties of the ultrafine-grain materials.

About the Speaker:
Terry Langdon has had a long association with the School of Engineering at USC, having been appointed as an associate professor in 1971. He was promoted to professor with tenure in 1976. Currently, he holds appointments in the departments of Aerospace and Mechanical Engineering and Materials Science and Earth Sciences at USC. His research interests include mechanical properties of metals and ceramics, creep, superplasticity, processing and properties of ultrafine-grained materials, and severe plastic deformation.  His extensive research at USC, combined with world-wide collaborations, has led to more than 600 scientific papers, including a large number of publications in the leading materials journals.