Startseite Cyclic deformation behaviour and lifetime calculation of the magnesium die-cast alloys AZ91D, MRI 153M and MRI 230D
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Cyclic deformation behaviour and lifetime calculation of the magnesium die-cast alloys AZ91D, MRI 153M and MRI 230D

  • Barbara Ebel-Wolf , Frank Walther und Dietmar Eifler
Veröffentlicht/Copyright: 23. Mai 2013
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 98 Heft 2

Abstract

The magnesium alloys AZ91D, MRI 153M and MRI 230D were investigated in the form of die-cast specimens with a cast-skin. The fine-grained microstructure consists of a dendritic magnesium solid solution and interdentritic precipitates. The cyclic deformation behaviour was characterised in stress-controlled load increase and single step tests by means of mechanical stress – strain hysteresis and temperature measurements. Load increase tests allow a reliable short-time estimation of the endurance limit. With the physically based lifetime calculation method “PHYBAL”, the lifetime of the magnesium alloys can be precisely calculated on the basis of the plastic strain amplitude and the change of the specimen temperature due to cyclic plastic deformation with three experiments. Lifetimes calculated according to “PHYBAL” agree excellently with experimentally determined data.

Keywords: Magnesium die-cast alloys; Microstructure; Load increase tests; Cyclic deformation behaviour; Lifetime calculation
* Correspondence address, Dr.-Ing. F. Walther, University of Kaiserslautern, Institute of Materials Science and Engineering, Gottlieb-Daimler-Str., D-67663 Kaiserslautern, Germany, Tel.: +49 631 205 2136, Fax: +49 631 205 2137, E-mail:

References

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Received: 2006-7-17
Accepted: 2006-11-28
Published Online: 2013-05-23
Published in Print: 2007-02-01

© 2007, Carl Hanser Verlag, München

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Basic
  4. A comparison of different distributions of azimuth angles in the sin2 ψ-method
  5. Experimental study and thermodynamic assessment of the ZrO2–DyO1.5 system
  6. Liquid–solid phase equilibria in metal-rich Hf–Ti–Si alloys
  7. Density and atomic volume in liquid Al–Fe and Al–Ni binary alloys
  8. Identification of liquid/solid transformations in eutectic Pb–Sn alloy
  9. Cyclic deformation behaviour and lifetime calculation of the magnesium die-cast alloys AZ91D, MRI 153M and MRI 230D
  10. Applied
  11. Superplastic deformation behavior of a spray-deposited eutectic NiAl/Cr(Mo) alloy doped with Dy
  12. Fracture behavior of overmatched ductile iron weldment
  13. Design of carbide-free low-temperature ultra high strength bainitic steels
  14. The influence of orientation and aluminium content on the deformation mechanisms of Hadfield steel single crystals
  15. Effect of tempering on the microstructure and hardness of ledeburitic chromium steel X155CrVMo12.1
  16. Notifications
  17. DGM News
https://doi.org/10.3139/146.101443
Schlagwörter für diesen Artikel
Magnesium die-cast alloys; Microstructure; Load increase tests; Cyclic deformation behaviour; Lifetime calculation

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Basic
  4. A comparison of different distributions of azimuth angles in the sin2 ψ-method
  5. Experimental study and thermodynamic assessment of the ZrO2–DyO1.5 system
  6. Liquid–solid phase equilibria in metal-rich Hf–Ti–Si alloys
  7. Density and atomic volume in liquid Al–Fe and Al–Ni binary alloys
  8. Identification of liquid/solid transformations in eutectic Pb–Sn alloy
  9. Cyclic deformation behaviour and lifetime calculation of the magnesium die-cast alloys AZ91D, MRI 153M and MRI 230D
  10. Applied
  11. Superplastic deformation behavior of a spray-deposited eutectic NiAl/Cr(Mo) alloy doped with Dy
  12. Fracture behavior of overmatched ductile iron weldment
  13. Design of carbide-free low-temperature ultra high strength bainitic steels
  14. The influence of orientation and aluminium content on the deformation mechanisms of Hadfield steel single crystals
  15. Effect of tempering on the microstructure and hardness of ledeburitic chromium steel X155CrVMo12.1
  16. Notifications
  17. DGM News
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