In order to study the properties of boride in borided layer deeply,single phase boride material was prepared by vacuum induction melting.The microstructure of boride was observed and analyzed,and its mechanical properties were tested.A MMU5G pindisc friction and wear tester was employed to investigate the dry friction and wear properties of boride.The morphologies of the worn surfaces were observed,and the wear modes were discussed.The results show that the boride with a single phase has a high purity,which has a average microhardness of HV2065,and a average fracture toughness of 1.68 MPa·m1/2.There is no macroscopic plastic deformation at the fracture surface of boride,and the fracture surface is flat and bright,showing the characteristics of brittle fracture.As the load increases from 10 N to 30 N,the friction coefficient of boride is decreased first and then increased,which reaches the minimum value at 20 N.The wear loss of boride is increased with the increasing of normal load.As the load increases from 10 N to 30 N,the roughness of the worn surface is first increases gradually and then increased sharply.The main wear mode of boride is abrasive wear under the load from 10 N to 20 N.Under the load from 25 N to 30 N,the main wear mode of boride is changed from abrasive wear to brittle wear.