Low-frequency damping behavior of closed-cell Mg alloy foams reinforced with SiC particles

Wen-zhan Huang; Hong-jie Luo; Yong-liang Mu; Hao Lin; Hao Du

doi:10.1007/s12613-017-1453-y

Volume 24 Issue 6

Jun. 2017

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文章导航 > 矿物冶金与材料学报（英文） > 2017 > 24(6): 701-707

Wen-zhan Huang, Hong-jie Luo, Yong-liang Mu, Hao Lin, and Hao Du, Low-frequency damping behavior of closed-cell Mg alloy foams reinforced with SiC particles, Int. J. Miner. Metall. Mater., 24(2017), No. 6, pp. 701-707. https://doi.org/10.1007/s12613-017-1453-y

Cite this article as:

Wen-zhan Huang, Hong-jie Luo, Yong-liang Mu, Hao Lin, and Hao Du, Low-frequency damping behavior of closed-cell Mg alloy foams reinforced with SiC particles, Int. J. Miner. Metall. Mater., 24(2017), No. 6, pp. 701-707. https://doi.org/10.1007/s12613-017-1453-y

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研究论文

Low-frequency damping behavior of closed-cell Mg alloy foams reinforced with SiC particles

School of Metallurgy, Northeastern University, Shenyang 110819, China
Engineering Research Center of the Ministry of Education for Advanced Materials Preparation Technology, Shenyang 110819, China
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

通讯作者:
Hong-jie Luo E-mail: neuhjluo@sina.com

中文摘要

The damping properties of an Mg alloy foam and its composite foams were investigated using a dynamic mechanical thermal analyzer. The results show that the loss factors of both the Mg alloy and its composite foams are insensitive to temperature and loading frequency when the temperature is less than a critical temperature T_crit. However, it increases when the temperature exceeds the T_crit values, which are 200 and 250℃ for the Mg alloy foam and the Mg alloy/SiC_p composite foams, respectively. The Mg alloy/SiC_p composite foams exhibit a higher damping capacity than the Mg alloy foam when the temperature is below 200℃. By contrast, the Mg alloy foam exhibits a better damping capacity when the temperature exceeds 250℃. The variation in the damping capacity is attributed to differences in the internal friction sources, such as the characteristics of the matrix material, abundant interfaces, and interfacial slipping caused by SiC particles, as well as to macrodefects in the Mg alloy and its composite foams.

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Research Article

Low-frequency damping behavior of closed-cell Mg alloy foams reinforced with SiC particles

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Abstract

Abstract

The damping properties of an Mg alloy foam and its composite foams were investigated using a dynamic mechanical thermal analyzer. The results show that the loss factors of both the Mg alloy and its composite foams are insensitive to temperature and loading frequency when the temperature is less than a critical temperature T_crit. However, it increases when the temperature exceeds the T_crit values, which are 200 and 250℃ for the Mg alloy foam and the Mg alloy/SiC_p composite foams, respectively. The Mg alloy/SiC_p composite foams exhibit a higher damping capacity than the Mg alloy foam when the temperature is below 200℃. By contrast, the Mg alloy foam exhibits a better damping capacity when the temperature exceeds 250℃. The variation in the damping capacity is attributed to differences in the internal friction sources, such as the characteristics of the matrix material, abundant interfaces, and interfacial slipping caused by SiC particles, as well as to macrodefects in the Mg alloy and its composite foams.
- magnesium alloys;
- foams;
- silicon carbide;
- damping

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Low-frequency damping behavior of closed-cell Mg alloy foams reinforced with SiC particles

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Low-frequency damping behavior of closed-cell Mg alloy foams reinforced with SiC particles

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