Abstract
Al-Si metal matrix composites (MMCs) reinforced with 20 vol.% alumina-silicate shot fibers (Al2O3-SiO2(sf)) were fabricated by an infiltration squeeze method. Pure Pr metal was added into these composites. The effect of Pr addition on the microstructure evolution of Al-Si MMCs was investigated by SEM, TEM, and EDS. Pr addition is favorable to make uniform microstructures with the modified eutectic Si crystal. PrAlSi phase with high contents of Pr and Si is observed on the interface between the fiber and the matrix. The addition of Pr promotes interface SiO2 reduction, and SiO2 comes from the crystallization of Al2O3-SiO2 short fibers.
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Miller W.S., Zhuang L., Bottema J., Wittebrood A.J., De Smet P., Haszler A., and Vieregge A., Recent development in aluminium alloys for automotive industry, Mater. Sci. Eng. A, 2000, 280(1): 37.
Matinez M.A., Martin A., and Llorca J., Wear of Al-Si alloys and Al-Si/SiC composites at ambient and elevated temperatures, Scripta Metall. Mater., 1993, 28(2): 207.
Natarajan N., Vijayarangan S., and Rajendran I., Wear behavior of A356/25SiCp aluminum matrix composites sliding against automobile friction material, Wear, 2006, 261(7–8):812.
Yang J.B., Lin C.B., Wang T.C., and Chu H.Y., The tribological characteristics of A356.2 alloys/Gr(p) composites, Wear, 2004, 257(9–10): 941.
Wu S.Q., Wei Z.S., and Tjong S.C., The mechanical and thermal expansion behavior of an Al-Si alloy composite reinforced with potassium titanate whiske, Compos. Sci. Technol., 2000, 60(15): 2873.
Lasagni F., Lasagni A., Marks E., Holzapfel C., Mücklich F., and Degischer H.P., Three-dimensional characterization of “as-cast” and solution-treated AlSi12(Sr) alloys by high resolution FIB tomography, Acta Mater., 2007, 55(11): 3875.
Basavakumar K.G., Mukunda P.G., and Chakraborty M., Impact toughness in Al-12Si and Al-12Si-3Cu cast alloys—Part I: effect of process variables and microstructure, Int. J. Impact Eng., 2008, 35(4): 199.
Lee C., Effect of microporosity on tensile properties of A356 aluminum alloy, Mater. Sci. Eng. A, 2007, 464(1–2): 249.
Goto H. and Uchijo K., Fretting wear of Al-Si alloy matrix composites, Wear, 2004, 256(6): 630.
Chang J.Y., Kim G.H., and Moon I.G., Rare earth concentration in the primary Si crystal in rare earth added Al-21 wt.% Si alloy, Scripta Mater., 1998, 39(3): 307.
Garcia-Hinojosa J.A., Gonzalez C., and Juarez J.A., Effect of grain refinement treatment on the microstructure of cast Al-7Si-SiCp composites, Mater. Sci. Eng. A, 2004, 386(1–2):54.
Kumar G.S., Murty B.S., and Chakraborty M., Development of Al-Ti-C grain refiners and study of their grain refining efficiency on Al and Al-7Si alloy, J. Alloys Compd., 2005, 396(1–2): 143.
Kori S.A., Murty B.S., and Chakraborty M. Development of an efficient grain refiner for Al-7Si alloy and its modification with strontium, Mater. Sci. Eng. A, 2000, 283(1–2): 94.
Shi X.L., Mishra R.S., and Watson T.J., Elevated temperature deformation behavior of nanostructured Al-Ni-Gd-Fe alloy, Scripta Mater., 2005, 52(9): 887.
Li J.C., Zhao M., and Jiang Q., Wear behavior of Al90Mn8Ce2 alloy prepared by powder metallurgy, Mater. Des., 2004, 25(6): 495.
Magdefrau N.J., Vasiliev A.L., and Aindow M., Effect of heat-treatment on the microstructure and hardness of a devitrified Al-3.0Y-3.0Gd-1.0Fe-1.0Co alloy, Scripta Mater., 2004, 51(6): 485.
Xiao D.H., Wang J.N., Ding D.Y., and Yang H.L., Effect of rare earth Ce addition on the microstructure and mechanical properties of an Al-Cu-Mg-Ag alloy, J. Alloys Compd., 2003, 352(1–2): 84.
Liu Y., Xu B., and Li W., The effect of rare earth CeO2 on the microstructure and properties of in situ TiC/Al-Si composite, Mater. Lett., 2004, 58(3–4): 432.
Zhao Y.G., Qin Q.D., and Zhou W., Microstructure of the Ce-modified in situ Mg2Si/Al-Si-Cu composite, J. Alloys Compd., 2005, 389(1–2): L1.
Xu C.L., Jiang Q.C., Yang Y.F., and Wang H.Y., Effect of Nd on primary silicon and eutectic silicon in hypereutectic Al-Si alloy, J. Alloys Compd., 2006, 422(1–2): L1.
Yu Z., Wu G., Sun D., Chen J., and Jiang L., Rare-earth oxide coating for sub-micro particulates aluminum matrix composites, Mater. Sci. Eng. A, 2003, 357(1–2): 61.
Peng J., Han D., Li W., Du J., Xie Y., and Liu G., Study on the yield behavior of Al2O3-SiO2(sf)/Al-Si metal matrix composites, Mater. Sci. Eng. A, 2008, 486(1–2): 427.
Liu Z. and Tu T., Solidified structure and solute segregation in Al2O3/A356-La alloy composites, Rare Met., 2006, 25(3):231.
Sidorov V., Gornov O., Bykov V., Son L., Ryltsev R., Uporov S., Shevchenko V., Kononenko V., Shunyaev K., Ilynykh N., Moiseev G., Kulikova T., and Sordel D., Physical properties of Al-R melts, Mater. Sci. Eng. A, 2007, 449–451:586.
Borzone G., Parodi N., Ferro R., Bros J.P., Dubes J.P., and Gambino M., Heat capacity and phase equilibria in rare earth alloy systems: R-rich R-Al alloys (R = La, Pr and Nd), J. Alloys Compd., 2001, 320(2): 242.
Huang Y.S., Study on the Interface Structure and Thermal Residual Stress of Al 2O3-SiO2 (sf)/ZL109 Composite [Dissertation], South China University of Technology, Guangzhou, 1998: 30.
Liang Y.J. and Che Y.C., Handbook of Inorganic Thermochemistry Data (in Chinese), Northeast University Press, Shengyang, 1993: 253.
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Peng, J., Li, W., Huang, F. et al. Microstructure evolution of rare earth Pr modified alumina-silicate short fiber-reinforced Al-Si metal matrix composites. Rare Metals 28, 164–168 (2009). https://doi.org/10.1007/s12598-009-0033-3
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DOI: https://doi.org/10.1007/s12598-009-0033-3