|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Solid State Precipitation
||The Effects of ECAP on the Precipitation Behavior of Al 2024
||Guher Tan, Eren Yunus Kalay, Hakan Gur
|On-Site Speaker (Planned)
Equal channel angular pressing (ECAP) is an important severe plastic deformation technique applicable to various alloys to improve the critical mechanical properties. Its application to Al 2024 alloy not only alters the precipitation hardening kinetics but also causes silver-free precipitation of omega phase which is well known for its good thermal stability. The current study investigates these behaviors in a single pass ECAPed Al 2024 alloy by means of advanced TEM analysis and microhardness measurements. The probable mechanisms underlying the 11 times faster kinetics of S precipitation at 190C and the reasoning behind the late formation of omega precipitates below 150C will be discussed in detail considering the microstructural variations in the deformed structure during thermal processing.
||Planned: Supplemental Proceedings volume