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Volume 8
Issue 11
10.3390/cryst8110427
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Article

Evaluation of the Effect of Nd Content and Extrusion Process on Thermal Conductivity of Mg-Mn-Zn-Nd Alloys

by
Ying-Long Zhou
1,*,
Jie Liu
1,
Dong-Mei Luo
2 and
Dong-Chu Chen
3
1
Department of Mechatronics Engineering, Foshan University, Foshan 528000, Guangdong, China
2
Department of Civil Engineering, Foshan University, Foshan 528000, Guangdong, China
3
Department of Materials Science and Engineering, Foshan University, Foshan 528000, Guangdong, China
*
Author to whom correspondence should be addressed.
Crystals 2018, 8(11), 427; https://doi.org/10.3390/cryst8110427
Submission received: 30 September 2018 / Revised: 4 November 2018 / Accepted: 6 November 2018 / Published: 14 November 2018
(This article belongs to the Special Issue Microstructure and Physical Properties of Magnesium Alloys and Composites)
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Abstract

The thermal conductivity of the Mg-1Mn-2Zn-xNd alloys (x = 0.5, 1.0, 1.5 wt. %) was studied for the potential applications of heat dissipation. The phase constituents were examined by X-ray diffraction analysis, and the microstructure was observed by light and scanning electron microscopes. The thermal conductivity of the Mg alloys was gauged at room temperature using laser flash method. The experimental results indicate that the thermal conductivity of both the cast and extruded Mg alloys decreases slowly with Nd content, and the extrusion process remarkably reduces the grain sizes and thermal conductivity of the Mg alloys. The thermal conductivity of cast Mg-1Mn-2Zn-xNd alloys exceeds the required critical value (100 W/(m·k)) for the cast Mg alloys. Among them, the cast Mg-1Mn-2Zn-1Nd alloy has great potential to be a good candidate of heat dissipation materials due to its good combination of thermal and mechanical properties.
Keywords: Mg alloy; microstructure; extrusion process; thermal conductivity; heat dissipation Mg alloy; microstructure; extrusion process; thermal conductivity; heat dissipation

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MDPI and ACS Style

Zhou, Y.-L.; Liu, J.; Luo, D.-M.; Chen, D.-C. Evaluation of the Effect of Nd Content and Extrusion Process on Thermal Conductivity of Mg-Mn-Zn-Nd Alloys. Crystals 2018, 8, 427. https://doi.org/10.3390/cryst8110427

AMA Style

Zhou Y-L, Liu J, Luo D-M, Chen D-C. Evaluation of the Effect of Nd Content and Extrusion Process on Thermal Conductivity of Mg-Mn-Zn-Nd Alloys. Crystals. 2018; 8(11):427. https://doi.org/10.3390/cryst8110427

Chicago/Turabian Style

Zhou, Ying-Long, Jie Liu, Dong-Mei Luo, and Dong-Chu Chen. 2018. "Evaluation of the Effect of Nd Content and Extrusion Process on Thermal Conductivity of Mg-Mn-Zn-Nd Alloys" Crystals 8, no. 11: 427. https://doi.org/10.3390/cryst8110427

APA Style

Zhou, Y.-L., Liu, J., Luo, D.-M., & Chen, D.-C. (2018). Evaluation of the Effect of Nd Content and Extrusion Process on Thermal Conductivity of Mg-Mn-Zn-Nd Alloys. Crystals, 8(11), 427. https://doi.org/10.3390/cryst8110427

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