The ultrahigh damping capacity of Mg-Sn-Y alloy

The ultrahigh damping capacity of Mg-Sn-Y alloy

High temperature heat treatment Mg-0.69Sn-0.69Y alloy showed a high damping capacity (the damping value is 0.201 at ε=1 × 10−3) and a very low critical strain amplitude at room temperature (εcr1=2.97 × 10−5), which can be attributed to the co-effects of purified matrix phase and interfaces of subgra...

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Veröffentlicht in:Scripta materialia 2023-08, Vol.233, p.115514, Article 115514
Hauptverfasser: Zhang, Lunchao, Yuan, Yuan, Wang, Jun, Chen, Tao, Wang, Jingfeng, Pan, Fusheng
Format: Artikel
Sprache:eng
Schlagworte:
Damping
Interfaces
Magnesium
Subgrains
Transmission electron microscopy (TEM)
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Zusammenfassung:High temperature heat treatment Mg-0.69Sn-0.69Y alloy showed a high damping capacity (the damping value is 0.201 at ε=1 × 10−3) and a very low critical strain amplitude at room temperature (εcr1=2.97 × 10−5), which can be attributed to the co-effects of purified matrix phase and interfaces of subgrains. The substructure is unstable and the damping capacity decreases with the increasing temperature. [Display omitted]
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2023.115514