A　novel　Ti-6Al-4V　particle　(TCp)　reinforced　MB　15　magnesium　matrix　composite,　TCp/MB　15,　was　fabricated　using　powder　metallurgy　route.　Microstructural　characterization　revealed　that　a　uniform　distribution　of　TCp,　good　interfacial　bond　between　TCp　and　the　matrix,　and　a　smaller　grain-size　compared　to　the　unreinforced　MB15　were　achieved　in　the　composite.　Mechanical　properties　investigation　showed　the　ultimate　tensile　strength,　0.2%　yield　strength　and　elastic　modulus　of　MB15　were　markedly　increased　by　the　addition　of　TCp,　and　the　strengthening　effect　of　TCp　was　better　than　that　of　SiC　particles.　The　primary　aim　of　this　work　was　to　compare　the　microstructural.　and　mechanical　properties　of　TCp/MB15　with　those　of　MB15　alloy.　(c)　2005　Elsevier　B.V.　All　rights　reserved.