Berlin 2018 – wissenschaftliches Programm

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MM: Fachverband Metall- und Materialphysik

MM 27: Poster Session I

MM 27.28: Poster

Dienstag, 13. März 2018, 18:30–19:45, Poster E

Vacancy concentrations in quenched aluminium alloy AA7150 measured by a new fast scanning calorimetry and interrupted quenching method — •Bin Yang and Christoph Schick — Institute of Physic, University of Rostock

Differential fast scanning calorimetry (DFSC) has been combined with a novel differential reheating method (DRM). Interrupted quenching at different temperatures followed by overcritical cooling enables both time and temperature-dependent investigations of vacancy concentrations in aluminium alloys during cooling from solution annealing at cooling rates between 300 K/s and 100,000 K/s. Furthermore, the effect of vacancy on precipitation is investigated. The method can potentially be transferred to similar systems or related solid-state phase transformation systems also beyond the particular system analysed in the present study.