The　wear　resistant　coatings　on　Q235　substrate　were　prepared　from　a　cored　wire　by　arc　spraying.　The　cored　wire　contained　TiB2　ceramic　enveloped　by　a　low　carbon　steel.　The　different　contents　of　Cr　element　were　added　to　the　cored　wire　to　improve　performance　of　the　coating.　The　properties　of　the　coating　were　measured,　wear　mechanism　was　analyzed,　and　their　microstructures　were　observed.　The　results　showed　that　the　abrasive　wear　resistance　of　the　coating　was　significantly　improved　by　adding　Cr,　and　the　optimum　content　of　Cr　was　11%-15%.　The　phase　distribution　of　the　coatings　was　uniform　and　dispersive　after　adding　Cr.