Response of Light Alloys to Mechanical Surface Treatments: Comparison of Magnesium and Aluminum Alloys

  1. Prof. Dr.-Ing. K. U. Kainer
  1. Matthias Hilpert and
  2. Lothar Wagner

Published Online: 15 MAY 2006

DOI: 10.1002/3527607552.ch83

Magnesium Alloys and their Applications

Magnesium Alloys and their Applications

How to Cite

Hilpert, M. and Wagner, L. (2000) Response of Light Alloys to Mechanical Surface Treatments: Comparison of Magnesium and Aluminum Alloys, in Magnesium Alloys and their Applications (ed K. U. Kainer), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527607552.ch83

Editor Information

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

Author Information

  1. Chair of Physical Metallurgy and Materials Technology, Technical University of Brandenburg at Cottbus, 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;
  • mechanical surface treatments;
  • comparison of magnesium and aluminum alloys

Summary

The effect of shot peening on the HCF behaviour in the light-metal alloys 6082 Al and the magnesium alloy AZ80 was studied. The response of the magnesium alloy to the shot peening depended strongly on Almen intensity in that pronounced lifetime improvements were observed only in a range of very low Almen intensities. Higher intensities led to marked overpeening effects. In contrast, the aluminum alloy showed no loss in lifetime with increasing Almen intensity. It is argued that the shot peening-induced high surface roughness and microcracks are the main reason for the marked sensitivity of the magnesium alloy to Almen intensity in shot peening.