Coarse　TiB2,　fine　TiB　and　NiTi/NiTi2　reinforced　titanium　matrix　composite　coatings　with　part　of　the　network-like　structure　reinforcement　distribution　were　prepared　by　laser　cladding　on　Ti-6Al-4V　alloy　using　premixed　Ni,　coarse　TiB2,　fine　TiB2　and　Ti　powder.　The　amount　and　the　size　of　coarse　TiB2　were　decreased　with　increasing　distance　from　the　surface.　The　network-like　structure　was　mainly　consisted　of　NiTi　and　Ni3Ti,　and　the　characteristic　of　network-like　structure　gradually　became　clearer　from　the　top　to　the　bottom.　The　micro-hardness　of　the　coating　was　first　decreased　abruptly　and　then　decreased　gradually　with　increasing　distance　from　the　surface,　but　fracture　toughness　of　the　coating　was　first　decreased　and　then　increased.　The　fracture　toughness　of　the　coating　can　be　improved　through　the　crack　deflection　and　the　bifurcation,　but　the　crack　deflection　and　the　bifurcation　were　random.　(C)　2015　Elsevier　Ltd.　All　rights　reserved.