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Interfacial reaction process of the hot-pressed WC/2024Al composite

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Abstract

12 vol%WCp/2024Al composite was fabricated from mixed powders by hot-pressing at various temperatures. Investigation of the interfacial reaction between the WC phase and the Al alloy matrix was performed by X-ray diffraction (XRD), transmission electron microscope (TEM) and energy dispersive spectroscopy (EDS). A multiple layer interface structure, which is composed of Al/WAl12/Al4C3/WC, is found to form by the interfacial reaction during hot-pressing. Further study shows that the Al4C3 layer forms along with a given crystal orientation of WC phase and might retard the interfacial reaction process.

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Acknowledgments

This work was financially supported by the Program for Changjiang Scholars and Innovative Research Teams in University (PCSIRT) (No. IRT0713).The authors would like to thank Professor Hui-Pin Duan from Beijing University of Aeronautics and Astronautics for his outstanding TEM and EDS works during the course of this study.

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Authors and Affiliations

  1. Key Laboratory for Anisotropy and Texture of Materials, School of Metallurgy and Materials, Northeastern University, Shenyang, 110004, China

    Chang-Hui Mao & Xu-Dong Sun

  2. Advanced Electronic Materials Institute, General Research Institute for Nonferrous Metals, Beijing, 100088, China

    Chang-Hui Mao, Qiu-Shi Liang, Jian Yang & Jun Du

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  1. Chang-Hui Mao
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  2. Xu-Dong Sun
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  3. Qiu-Shi Liang
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  4. Jian Yang
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Correspondence to Chang-Hui Mao.

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Mao, CH., Sun, XD., Liang, QS. et al. Interfacial reaction process of the hot-pressed WC/2024Al composite. Rare Met. 32, 397–401 (2013). https://doi.org/10.1007/s12598-013-0116-z

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  • DOI: https://doi.org/10.1007/s12598-013-0116-z

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