Fabrication Of TiC-TiB₂ Locally Reinforced Low Cr Steel Matrix Composite Using A Fe-Ti-B₄C System By SHS-Casting Route

Iron and steel have been extensively used in modern mechanical and metallurgy industry as structure materials. With the development of science and technology, a challenge appears for the conventional iron and steel, because they cannot meet the demands for super mechanical properties. In order to solve this problem, many scientists have intensively studied the steel matrix composites by ex- and in-situ incorporation of ceramic reinforcements into steel matries, which possess combined properties of toughness and machinability related to the conventional steel or iron and high hardness and good wear resistance related to the ceramic.The fabrication methods of particulates reinforced metal matrix composites can be classified into two types: in-situ method and ex-situ method. Compared with the conventional MMCs fabricated by the ex-situ methods, the in-situ MMCs have the following advantages: (i) the reinforcement is thermodynamically stable in the matrix, leading to less degradation at elevated-temperatures; (ii) the interface...