|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Energy Materials 2017: Materials for Oil and Gas and AMREE Oil & Gas III
||Processing Aluminum 6061 by Equal Channel Angular Extrusion for Oil and Gas Applications
||Ramatou Ly, Karl T. Hartwig, Homero Castaneda-Lopez
|On-Site Speaker (Planned)
Equal channel angular extrusion (ECAE) is a severe plastic deformation process by which high strength nanostructured aluminum 6061 is formed. By changing the extrusion parameters and heat treatment conditions, the material texture, mechanical properties and corrosion resistance can be modified. Over the last two decades much has been done on aluminum 6061 to increase the strength by the ECAE process. Our research explores the potential use of high strength extruded aluminum 6061 in replacement of common 6061-T6 for the Oil and Gas field. As the ECAE process changes the microstructure, the texture and the kinetic precipitation of the extruded material, we focused our interest on the grain boundary precipitation and degradation for different combinations of ECAE process parameters ageing time and temperature. Grain boundary characteristics are studied by microstructure analysis (EBSD, SIMS). Intergranular corrosion testing is used to assess the extent of grain boundary degradation.
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