Magnesium-base porous compound material and method of producing the same

Abstract

A magnesium-based porous composite material is characterized in that the magnesium-based porous composite material is a metal-based composite material which floating beads with cavities are distributed in the magnesium alloy matrix; the chemical components of the floating bead comprises that SiO<2> which is more than or equal to 53 percent and less than or equal to 33 percent, Al<2>O<3> which is more than or equal to 30 percent and less than or equal to 36 percent, Fe<2>O which is more than or equal to 0 percent and less than or equal to 33 percent, CaO which is more than or equal to 1.5 percent and less than or equal to 3.6 percent and MgO which is more than or equal to 0.5 percent and less than or equal to 4 percent; the weight of the floating bead is 0.3 to 0.4 g / cm3 and the size is 200 to 400 um; the volume percent of the composite material which is occupied by the floating bead is 20 percent to 50 percent; the magnesium matrix component content is that Al which is more than or equal to 7wt percent and less than or equal to 10 wt percent, Zn which is more than or equal to 0.8wt percent and less than or equal to 2wt percent, Ti which is more than or equal to 1wt percent and less than or equal to 2wt percent, Zr which is more than or equal to 0 percent and less than or equal to 0.5wt percent, Sr which is more than or equal to 0 percent and less than or equal to o.5wt percent, Sn which is more than or equal to 0 percent and less than or equal to 1wt percent, Si which is more than or equal to 0 percent and less than or equal to 0.2wt percent, Be which is more than or equal to 0.1wt percent and less than or equal to 0.3wt percent and the rest is magnesium. The magnesium-based micrometer pore composite material of the invention contains inorganic non-metal phase with thin pore and the density of the phase is very small.

Description

1. Technical field [0001] The invention belongs to the technical field of metal composite materials, in particular to a magnesium-based porous composite material and a preparation method thereof. 2. Background technology [0002] Prior Art: Magnesium alloys are light in weight and have high specific strength and specific stiffness, and have been widely used in industrial production. At present, metal foam materials are mainly materials such as aluminum foam and nickel foam. For example, in patent 01106207, aluminum foam materials are prepared by direct foaming of melts. However, the density of aluminum is higher than that of magnesium. If uniform pores can be formed in the magnesium alloy, the magnesium-based foam composite material is formed. Making magnesium and its base alloys into lighter porous materials could further expand the use of metal foams. 200610039019.2 proposed a magnesium foam material with controllable porosity and pore size and its preparation method: m...

AI Technical Summary

Problems solved by technology

This method involves many process procedures and high cost

Therefore, the current preparation methods of magnesium-based porous composite materials are cumbersome and there are fewer types.

Images