Date | Time
09/05/2017 | 14 h 00 min
“Scientific and Technological Foundations for Pilot Scale Production of Nanostructured Metals”
Abstract – The virtues of creating novel microstructures by Severe Plastic Deformation (SPD) have been explored in virtually every commercial alloy system. However, industrial scale implementations of SPD remain limited. To systematically evolve production of ultrafine grain and nanostructured metals by SPD, a Nanostructured Metals Manufacturing Testbed (NMMT) has been established in Golden, Colorado. Machines for research scale and pilot scale implementation of Equal Channel Angular Pressing-Conform (ECAP-C) technology are operated continuously in the NMMT to systematically evolve the foundational science and manufacturing technologies for SPD. We review highlights of ongoing work for scaling processing of aluminum, copper, magnesium, titanium, and iron-based alloys. Topics important to pilot scale processing include fundamental science to control slip, twinning, and texture evolution, plus industrial issues of tooling tolerance and lifetimes, lubrication schemes, and designing complex thermomechanical processing schemes.