In situ differential scanning calorimetry analysis of dissolution and precipitation kinetics in Mg–Y–RE alloy WE43

Benjamin Milkereit; Lydia Burgschat; Richard H. Kemsies; Armin Springer; Christoph Schick; Olaf Kessler

Journal of Magnesium and Alloys (Mar 2019)

In situ differential scanning calorimetry analysis of dissolution and precipitation kinetics in Mg–Y–RE alloy WE43

Benjamin Milkereit,
Lydia Burgschat,
Richard H. Kemsies,
Armin Springer,
Christoph Schick,
Olaf Kessler

Affiliations

Benjamin Milkereit: Chair of Materials Science, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Germany; Competence Centre °CALOR – Calorimetry and Thermal Analysis Rostock, Department Life, Light & Matter, Interdisciplinary Faculty, University of Rostock, Germany; Corresponding author at: Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Germany.
Lydia Burgschat: Chair of Materials Science, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Germany
Richard H. Kemsies: Chair of Materials Science, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Germany
Armin Springer: Medical Biology and Electron Microscope Centre, University Medical Centre Rostock, Germany
Christoph Schick: Competence Centre °CALOR – Calorimetry and Thermal Analysis Rostock, Department Life, Light & Matter, Interdisciplinary Faculty, University of Rostock, Germany; Institute of Physics, Polymer Physics Group, University of Rostock, Germany
Olaf Kessler: Chair of Materials Science, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Germany; Competence Centre °CALOR – Calorimetry and Thermal Analysis Rostock, Department Life, Light & Matter, Interdisciplinary Faculty, University of Rostock, Germany

Journal volume & issue: Vol. 7, no. 1
pp. 1 – 14

Abstract

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Further development of our differential scanning calorimetry (DSC) method for the analysis of solid-solid phase transformations now also allows for its application in the kinetic analysis of age hardening in Mg alloys. As a result, the state-of-the-art for DSC on Mg alloys has been improved with respect to the accessible temperature range, zero-level accuracy and dynamic range. DSC analysis was performed on the example of Mg wrought alloy WE43. Heating DSC experiments on the initial condition T4 and even direct continuous cooling DSC analysis on the kinetics of quench induced precipitation during cooling from solution treatment were possible, covering a dynamic range of 0.01–3 K/s. The DSC findings are discussed with respect to literature knowledge and scanning electron microscopy analysis of the defined heat treatment states. Keywords: Precipitation, Dissolution, Kinetics, DSC, Magnesium alloy, WE43, SEM, Quench induced precipitation, Continuous cooling

Published in Journal of Magnesium and Alloys

ISSN: 2213-9567 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/journal-of-magnesium-and-alloys/

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