|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Pan American Materials Congress: Nanocrystalline and Ultra-fine Grain Materials and Bulk Metallic Glasses
||Micro-scale Mechanical Response of Ultrafine-grained Materials Processed by High-pressure Ttorsion
||Megumi Kawasaki, Jae-il Jang, Byungmin Ahn, Terence G. Langdon
|On-Site Speaker (Planned)
The ultrafine grains in bulk metals usually show superior mechanical and physical properties. The development of micro-mechanical response is observed after significant changes in microstructure through high-pressure torsion (HPT) processing. Accordingly, this presentation demonstrates the evolution of small-scale deformation behavior examined by the nanoindentation technique on various ultrafine-grained (UFG) materials including a ZK60 magnesium alloy, a Zn-22% Al eutectoid alloy and a metal matrix nanocomposite processed by HPT. Special emphasis is placed on demonstrating the essential microstructural changes of these materials with increased straining by HPT and the evolution of the micro-mechanical behavior in these UFG materials by estimating the strain rate sensitivity.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)