Ivan Zuiko, Rustam Kaibyshev
Effect of aging temperature on precipitation behavior and mechanical properties of an AA2519 alloy was examined. Long-term natural aging provides the best combination of strength and ductility by the precipitation of dense GuinierePreston and GuinierePrestoneBagaryatsky zones. This phenomenon, called “delayed hardening”, has the same origin as the “rapid hardening” in AA2X24 alloys subjected to artificial aging. At 190/C14 C, high density of q00-phase provides high strength. Peak aging is characterized by insignificant increase in strength associated with additional precipitation of q0-phase. The overaging leads to the formation of precipitate structure dominated by q0-phase. The formation of q00- and q0-phases can consume ~0.7 and ~3.3%Cu, respectively. Despite this, the number density of q00-phase precipitates is higher than that of q0-phase ones by a factor of ~40. The q00-phase is effective strengthening agent in the AA2519 alloy. The U-phase plates with a very high aspect ratio (AR) > 100 precipitate during artificial aging.
@article{95258a64-80a4-453d-9265-f03ad40c86c4,
title={Aging behavior of an AleCueMg alloy},
author={Ivan Zuiko and Rustam Kaibyshev},
year={2018},
language={en}
}TY - JOUR TI - Aging behavior of an AleCueMg alloy AU - Ivan Zuiko AU - Rustam Kaibyshev PY - 2018 LA - en ER -
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