METHOD FOR MANUFACTURING Ti PARTICLE-DISPERSED MAGNESIUM-BASED COMPOSITE MATERIAL

Abstract

A Ti particle-dispersed magnesium-based composite material is a material having titanium particles uniformly dispersed in a magnesium matrix. Magnesium that forms the matrix and titanium particles are bonded together,) with satisfactory wettability without titanium oxide at an interface therebetween. The Ti particle-dispersed magnesium-based composite material has a tensile strength of 230 MPa or more.

1 - 7 . (canceled) 
     
     
         8 . A method for manufacturing a Ti particle-dispersed magnesium-based composite material, comprising the steps of:
 placing pure titanium particles, in a range from 0.5% to 5% as a weight percentage relative to the total weight, into molten pure magnesium;   stirring the molten pure magnesium so that the titanium particles are uniformly dispersed therein;   solidifying, by using an atomization process, the molten pure magnesium having the pure titanium particles dispersed therein, thereby producing magnesium-based composite powder having the pure titanium particles uniformly dispersed in a pure magnesium matrix with satisfactory wettability without titanium oxide at an interface between the pure titanium particles and the pure magnesium matrix;   compacting and solidifying the magnesium-based composite powder having the pure titanium particles dispersed therein, thereby producing a compacted body; and   producing a magnesium-based composite material having a tensile strength of 230 MPa or more by subjecting the compacted body to a hot plastic working process.