An Approach to Determine Solidification Curves of Commercial Magnesium Alloys

  1. Prof. Dr.-Ing. K. U. Kainer
  1. Djordje Mirković,
  2. Joachim Gröbner and
  3. Rainer Schmid-Fetzer

Published Online: 15 MAY 2006

DOI: 10.1002/3527607552.ch120

Magnesium Alloys and their Applications

Magnesium Alloys and their Applications

How to Cite

Mirković, D., Gröbner, J. and Schmid-Fetzer, R. (2000) An Approach to Determine Solidification Curves of Commercial Magnesium Alloys, in Magnesium Alloys and their Applications (ed K. U. Kainer), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527607552.ch120

Editor Information

  1. GKSS-Forschungszentrum Geesthacht GmbH, Institut für Werkstofforschung, Max-Planck- Straße, D-21502 Geesthacht, Germany

Author Information

  1. Technical University of Clausthal, Institute of Metallurgy, Clausthal, Germany

Publication History

  1. Published Online: 15 MAY 2006
  2. Published Print: 20 SEP 2000

ISBN Information

Print ISBN: 9783527302826

Online ISBN: 9783527607556

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Keywords:

  • magnesium alloys;
  • simulation;
  • determination of solidification curves;
  • commercial magnesium alloys

Summary

In this work two different experimental methods have been used to determine the solidification curves of the AZ91 and AZ62 Mg-alloys. The nominal composition of these alloys is Al 9 wt.%; Zn 1 wt.% and Al 6 wt.%; Zn 2 wt.%, respectively, and up to Mn 0,5 wt.% for the both alloys.

The first method was traditional the quenching from the different temperatures in solidification range, then determining the fraction of the solid prior to quenching by using quantitative image analysis.

The second method is a new approach to determine solidification curves in magnesium using DTA (Differential Thermal Analysis)-measurements coupled with a mathematical heat-transfer modeling.

Additionally solidification curves of the AZ91 and AZ62 Mg-alloys have been calculated applying two simplistic, limiting solidification models (equilibrium solidification model and Scheil model) based on the thermodynamic Mg-database currently developing by our group.