(TiBiTi)-Ti3Al　micro-laminated　composites　have　been　successfully　produced　by　reaction　annealing　using　in-house　fabricated　TiB/Ti　composite　foils　and　commercial　pure　Al　foils　as　starting　materials.　The　resulting　(TiB/Ti)-Ti3Al　composites　showed　a　unique　microstructure　which　was　comprised　of　alternating　TiB/Ti　composite　layers　and　Ti3Al　layers.　Microstructure　of　(TiBiTi)-Ti3Al　micro-laminated　composites　was　characterized　systematically　by　optical　microscopy　(OM)　and　scanning　electron　microscopy　(SEM).　Furthermore,　formation　mechanism　of　the　novel　micro-laminated　structure　was　discussed.　The　(TiB/Ti)Ti3Al　micro-laminated　composites　exhibited　a　desired　combination　of　the　enhanced　tensile　strength　with　the　superior　ductility　as　compared　to　monolithic　Ti3Al.　This　could　be　likely　attributed　to　the　introduction　of　ductile　TiB/Ti　composite　layers　and　the　formation　of　unique　micro-laminated　structure.　It　is　noteworthy　that　fracture　toughness　of　the　(TiBiTi)-Ti3Al　micro-laminated　composites　had　a　sharp　increase,　1.5　times　higher　than　that　of　monolithic　Ti3Al.　(C)　2017　Elsevier　B.V.　All　rights　reserved.