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Damping Measurements of the Magnesium Wrought Alloys AZ31, AZ61 and AZ80 after Indirect and Hydrostatic Extrusion

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Abstract:

Magnesium cast parts as well as indirectly and hydrostatically extruded profiles were used in order to investigate the influence of different microstructures on the damping behaviour of magnesium AZ-alloys. Especially, hydrostatic extrusion leads to a significant grain refinement in the extruded profile compared to indirect extrusion. Strain dependent damping measurements were carried out at room temperature using alloys AZ31, AZ61 and AZ80. Damping was determined as the logarithmic decrement of free bending beam vibrations. The results of these measurements after indirect and hydrostatic extrusion are shown and discussed.

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Periodical:

Materials Science Forum (Volume 482)

Pages:

387-390

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.482.387

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Online since:

April 2005

Authors:

J. Göken, J. Swiostek, Dietmar Letzig, Karl Ulrich Kainer

Keywords:

AZ31 Alloy, AZ61, AZ80, Damping, Hydrostatic Extrusion (HE), Indirect Extrusion

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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