Abstract
Fly ash cenosphere/AZ91D Mg alloy (FAC/AZ91D) composites were prepared using stir casting method. The effects of the applied load, the wearing time, and the diameter and the content of fly ash cenosphere on the wear behavior of the composites were investigated under dry sliding condition. The results showed the wear resistance of FAC/AZ91D composites is generally better than that of AZ91D Mg alloy. The mass fraction and diameter of FAC have important effects on the wear resistance of the composites, and the wear resistance of the composites is excellent when the mass fraction and diameter of FAC are moderate. When the mass fraction and diameter of FAC are more than the critical values, the wear resistance of the composites lowers again. The wear resistance of the composites decreases with the increase in the applied load. The relationship between the worn mass loss and the applied load is nonlinear. When the applied load is smaller, the worn mass loss of the composites increases rapidly with the increase of the applied load. These research results show that the composites have broad application prospects under dry sliding wear condition, and they can provide guidance for the selection of the raw materials, the structure design, and the application conditions of the composites.
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Acknowledgments
This work was supported by “the Key Grant Project of Chinese Ministry of Education (No. 313056),” “Doctoral Program of Higher Education of the Ministry of Education of the Special Research Fund (20110133110003),” “Project for the Natural Science Funds of Heilongjiang province (E201467),” and “Project for Science and Technology of Education Department of Heilongjiang province (12511535).”
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Yu, S.R., Huang, Z.Q. Dry Sliding Wear Behavior of Fly Ash Cenosphere/AZ91D Mg Alloy Composites. J. of Materi Eng and Perform 23, 3480–3488 (2014). https://doi.org/10.1007/s11665-014-1157-7
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DOI: https://doi.org/10.1007/s11665-014-1157-7