Hardness property and wear resistance of Zn-Al/Al_2O_(3p) OR SiCp particulate composite

摘要

The hardness value and the wear resistance of Al/Al_2O_(3p) or SiCp/Zn-Al composite, prepared by means of rheological casting technology, are investigated separately in this work. The results show that the addition of Al/Al_2O_(3p) or SiCp increases the hardness values of the matrix at both room and high temperature and improves the wear resistance of the material. The hardness values and the wear resistance of the particle size. The raising of test temperature results in a rapid descending of its hardness values. However, the addition of Al/Al_2O_(3p) or SiCp improves the property of high temperature resistance of Zn-Al alloys significantly. Moreover, the effect of quenching, tempering or cycling heat treatment on the hardnese values of the composite is also studied.