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Phase selection and performance of Mg–Cu–Y amorphous composite with different Mg/Cu ratios

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Abstract

In this article, Mg–Cu–Y alloys with two different Mg/Cu ratios (in at%) were prepared using a water-cooled copper mold. Scanning electron microscopy and X-ray diffraction were applied to analyze the microstructure and phase composition. Moreover, corrosion resistance and wear resistance were studied systematically. The results show that both Mg65Cu25Y10 and Mg60Cu30Y10 alloys could form a composition of crystalline and amorphous phases. Although the microstructure of Mg65Cu25Y10 consists of an amorphous phase and α-Mg, Mg2Cu, and Cu2Y crystalline phases, the microstructure of Mg60Cu30Y10 alloy mainly consists of the amorphous phase and α-Mg, Mg2Cu. With reducing Mg/Cu ratio, the alloys have better corrosion resistance and wear resistance. The mechanism has also been discussed in detail.

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Acknowledgments

This work was financially supported by the Natural Science Foundation of Jiangxi Province (No. 20114BAB216015), the Foundation of Jiangxi Educational Committee (No. GJJ12320), and the National Natural Science Foundation of China (No. 50671083).

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  1. School of Mechanical and Electronical Engineering, East China Jiaotong University, Nanchang, 330013, China

    Di-Qing Wan

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  1. Di-Qing Wan
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Correspondence to Di-Qing Wan.

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Wan, DQ. Phase selection and performance of Mg–Cu–Y amorphous composite with different Mg/Cu ratios. Rare Met. 33, 91–94 (2014). https://doi.org/10.1007/s12598-013-0062-9

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  • DOI: https://doi.org/10.1007/s12598-013-0062-9

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