|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Phase Transformations and Microstructural Evolution
||The high temperature compression response of Al 319
||Patrick Shower, Shibayan Roy, C. Shane Hawkins, Lawrence Allard, Amit Shyam
|On-Site Speaker (Planned)
In this study, the high temperature compression response of Al 319 is analyzed in light of its as-agedmicrostructure. Cylindrical compression samples were solutionized, heat treated, and held for 200 hours at “service” temperatures (four temperatures up to 300 oC) before being tested at a constant true strain rate that was varied four orders of magnitude.[AS1] This alloy is strengthened by metastable θ′ precipitates (nominally Al2Cu) in the as-aged condition. Its mechanical response diverges at elevated temperatures (>250oC) as the result of an altered microstructure. The Extended Ludwik model describes the plastic response of this alloy well at elevated temperatures.
||Planned: A print-only volume