|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Materials Processing Fundamentals
||Graphite Enhanced Workability of Aluminum 6061
||Lourdes Salamance-Riba, Xiaoxiao Ge, Iftekhar Jaim, Marc Zupan, Rick Everett, Mitch Zavala, Manfred Wuttig
|On-Site Speaker (Planned)
It is desirable that conducting Cu and Al based alloys retain a large conductivity after having been processed into wires. It is known that Aluminum 6061 retains a relatively high electrical conductivity per degree of area reduction when it had been carbon enriched by electro-charging assisted bulk processing. Here, we report on a transmission electron microscopic study of cold rolled Aluminum 6061 whose carbon content had been enhanced by electro-melting to 3 wt% C. We observe a very distinct microstructure in the <111> oriented Aluminum grains at the Aluminum 6061 − amorphous graphite interface. It consists of necklace-like arrangements of nano-sized graphite precipitates along the <112> direction of Aluminum. We will show in this presentation that this structure formed during cold-working during which the graphite served as solid state lubricant only to be precipitated after the conclusion of the deformation.
Supported by ONR under contract N000141410042.
||Planned: EPD Congress Volume