Comparison of temperature dependence of internal damping of selected magnesium alloys

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Abstract

The research is focused on the study of the temperature dependence of the internal damping of selected magnesium alloys with different contents of aluminium - AZ31 and AZ61. These alloys are currently widely used in various types of industry, mainly in the automotive industry. It belongs to a group of materials called HIDAMETS because they have excellent damping properties. The internal damping of the samples was measured on a unique ultrasonic device constructed at Žilina University in Žilina. Specimens were measured at baseline in the temperature range from 25 °C to 400 °C. Changes in internal damping caused by varying aluminium contents in investigated alloys were noted. As the aluminium content increases, maximum internal damping is achieved due to the formation, growth and subsequent dissolution of the continuous precipitate in the microstructure.

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  • Avedesian M.M. Baker H. 1999. Magnesium and Magnesium Alloys Materials Park OH: ASM International 298.

  • Braszczyńska-Malik K.N. 2009. Discontinuous and continuous precipitation in magnesium aluminium type alloys Journal of Alloys and Compounds 477 870-876.

  • Göken J. Swiostek J. Letzig D. Kainer K.U. 2005. Damping measurements of the magnesium wrought alloys AZ31 AZ61 and AZ80 after in-direct and hydrostatic extrusion Materials Science Forum 482 387-390.

  • Hao G.L. Han F.S. Wang Q.Z. Wu J. 2007. Internal friction peaks associated with the precipitation in AZ91 magnesium alloy Physica B: Condensed Matter 391 186-192.

  • Liu S.W. Jiang H.CH. Li X.Y. Rong L.J. 2010. Effect of precipitation on internal friction of AZ91 magnesium alloy Transactions of Nonferrous Metals Society of China 20 453-457.

  • Oršulová T. Palček P. Soviarová A. 2018. Changes in internal damping of selected magnesium alloys depending on temperature Advanced manufacturing and repair technologies in vehicle industry 263-275.

  • Riehemann W. 1998. Internal Friction in Magnesium Materials Magnesium Alloys and Their Applications Frankfurt: Werkstoff-Informationsgesellschaft 61.

  • Saikawa S. Ebata Y. Terayama K. Ikeno S. Yanagihara E. 2014. Age-hardening behaivior of Mg-Al-Zn alloys produced by sand mold casting Materials Science Forum 783-786 467-471.

  • Uhríčik M. Dresslerová Z. Soviarová A. Palček P. Kuchariková L. 2017. Change of Internal Friction on Magnesium Alloy with 5.48% Al and 0.813% Zn. Procedia Engineering 177 568-575.

  • Zhou J.P. Zhao D.S. Wang R.H. Sun Z.F. Wang J.B. Gui J.N. Zheng O. 2007. In situ observation of ageing process and new morphologies of continuous precipitates in AZ91 magnesium alloy Materials Letters 61 4707-4710.

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