MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Damping Capacities of Mg–(0–9)%Sn Casting Alloys
Joong-Hwan Jun
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2014 Volume 55 Issue 12 Pages 1903-1905

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Abstract

This study aimed to investigate the damping capacities of Mg–(0–9)%Sn casting alloys. An increase in the Sn content led to an increase in the Sn-rich area and the volume fraction of Mg2Sn phase, and to a decrease in the damping levels both in the strain-amplitude-independent and strain-amplitude-dependent regions. The evaluation of the microstructural evolution indicates that the higher Sn solute concentration in the α-Mg matrix and the increased number density of Mg2Sn precipitates are responsible for the deterioration of the damping capacities in the strain-amplitude-independent and strain-amplitude-dependent regions, respectively.

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© 2014 The Japan Institute of Metals and Materials
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