Papers by Author: Xiao Jing Xu

Abstract: Temperature field during laser surface melting the pure Al was numerically simulated by the Laplace integral transform technique using the MathCAD software. The influences of laser power densities on the surface temperature of the pure Al were analyzed. Mathematical expressions for the temperature distribution of the heating and cooling process on the pure Al surface were obtained.

Abstract: The SiCp/Al composites reinforced by SiC particles with various sizes and contents were prepared by cold compacting and subsequent hot extruding. The mechanical and wear properties of the compositions were investigated and the relevant mechanisms were discussed. It has been shown that the tensile strength and wear resistance increases with increasing SiCp content. SiC particles have a remarkable reinforcing effect on matrix Al. The composite with larger SiCp size (14μm) possesses better wear resistance than that with smaller SiCp size (130nm).