Effect of rare earth and alloying elements on the thermal conductivity of austenitic medium manganese steel

Shao-chun Chen; Hong-xiang Ye; Xin-qiang Lin

doi:10.1007/s12613-017-1449-7

Volume 24 Issue 6

Jun. 2017

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2017 > 24(6): 670-674

Shao-chun Chen, Hong-xiang Ye, and Xin-qiang Lin, Effect of rare earth and alloying elements on the thermal conductivity of austenitic medium manganese steel, Int. J. Miner. Metall. Mater., 24(2017), No. 6, pp. 670-674. https://doi.org/10.1007/s12613-017-1449-7

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Shao-chun Chen, Hong-xiang Ye, and Xin-qiang Lin, Effect of rare earth and alloying elements on the thermal conductivity of austenitic medium manganese steel, Int. J. Miner. Metall. Mater., 24(2017), No. 6, pp. 670-674. https://doi.org/10.1007/s12613-017-1449-7

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Research Article

Effect of rare earth and alloying elements on the thermal conductivity of austenitic medium manganese steel

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Corresponding author:
Shao-chun Chen E-mail: chenscfz@sina.com,2667263353@qq.com
Received: 9 October 2016; Revised: 7 January 2017; Accepted: 12 January 2017

Abstract

Abstract

The influence of different contents of Cr, Mo, and rare earth element (RE) additives on the thermal conductivity of austenitic medium manganese steel was studied and discussed. The results show that the addition of Cr in medium manganese steel can improved the ordering of C-Mn atomic clusters, so as to improve the steel's thermal conductivity. However, Cr will lead to precipitation of a great deal of carbides in medium manganese steel when its content is greater than 4wt%. These carbides would aggregate around the grain boundary, and as a result, the thermal conductivity is decreased. By the addition of Mo whose content is about 2wt%, spherical carbides will be formed, thus improving the thermal conductivity of the medium manganese steel. The interaction between rare earth elements and alloying elements will raise both the thermal conductivity and the wear-resisting property of medium manganese steel.
- medium manganese steel;
- alloying elements;
- rare earth;
- thermal conductivity

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References

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