[en] Al₃Zr+AA6082 particulate reinforced aluminum matrix composites were prepared in situ at 750 °C, 780 °C and 810 °C by the reaction of K₂ZrF₆ salt-coated powder with AA6082 melt under electromagnetic stirring. Linear friction and wear tests at room temperature were carried out on three kinds of Al matrix composites prepared at different temperatures. The test result were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), EDS, confocal laser scanning microscopy and transmission electron microscopy (TEM). The results show that the Al₃Zr phase is formed at 750 °C, 780 °C and 810 °C and small. Under the same load, the wear volume of the composites prepared at 780 °C and 810 °C is larger than that of the aluminum matrix composites prepared at 750 °C. The main wear mechanisms of aluminum matrix composites prepared at various temperatures under different loads are adhesive wear, and the wear volume increases with the increase of load. The average friction coefficient of the three composites under different loads is about 0.5, and the friction performance is stable. (paper)