Abstract
In order to further improve the service life of H13 steel, bionic laser surface treatment was performed on the surface of H13 steel. The mechanical properties and microstructures of H13 steel processed by bionic laser surface alloying with different fractions of TiC particulates were investigated. With increasing TiC fraction, the microstructure and microhardness of laser alloying zone were further refined and increased. The tensile strength increased gradually with increasing TiC fraction. The fracture characteristics were also affected by the particulate fraction. The wear resistance increased first and then decreased with increasing TiC fraction. In addition, the enhancement mechanisms of mechanical properties are discussed.
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