Soil-engaging　components　of　agricultural　machinery　are　susceptible　to　physical　degradation　due　to　the　long-term　wear　from　sand,　gravel,　weeds,　and　plant　stalks.　In　order　to　improve　their　wear　resistance　and　prolong　the　service　life,　a　hardfacing　alloy　of　hypoeutectic　high　chromium　cast　iron　containing　TiC　was　made　on　the　Q235　steel　substrate　via　the　flux-cored　arc　welding　method.　Effects　of　in-situ　precipitation　of　TiC　and　direct　addition　of　TiC　to　the　powder　core　on　the　wear　resistance　of　hardfacing　alloy　were　studied　by　the　MLS-225　wet　rubber　wheel　wear　tester　and　self-made　impeller-roller　impact-abrasion　testing　machine.　In　addition,　after　tests,　the　samples　were　characterized　using　optical　microscope　(OM),　Rockwell　hardness　tester,　X-ray　diffraction　(XRD),　scanning　electron　microscopy　(SEM),　energy-dispersive　spectroscopy　(EDS).　The　results　showed　that　the　hardfacing　alloy　of　hypoeutectic　high　chromium　cast　iron　mainly　consists　of　gamma-Fe,　alpha-Fe,　M7C3,　and　TiC,　TiC　can　act　as　the　heterogeneous　nucleation　core　for　precipitates　austenite　first　in　the　organization,　increasing　their　nucleation　rate　and　preventing　their　growth　during　solidification,　resulting　in　the　refinement　of　the　austenite　organization.　The　TiC　introduced　by　in-situ　synthesis　has　a　smaller　size　and　a　more　diffusely　homogeneous　distribution　than　that　introduced　by　direct　addition　to　the　powder　core.　In　addition,　TiC　increased　the　content　of　eutectic　carbides　in　the　organization　and　improved　the　hardness　of　the　hardfacing　alloy.　The　wear　forms　of　all　three　hardfacing　alloys　after　the　abrasive　wear　test　are　dominated　by　micro-cutting,　and　the　grooves　on　the　wear　surface　of　the　hardfacing　alloy　without　added　TiC　are　wider　and　deeper,　in　the　hardfacing　alloys　with　added　TiC,　the　diffusely　distributed　TiC　increased　the　resistance　of　abrasive　particles　cutting,　made　the　grooves　shallower,　reduced　the　cracking　and　spalling　of　eutectic　carbides　during　the　wear　process,　significantly　improved　the　resistance　of　hardfacing　alloys　to　abrasive　wear.　The　resistance　to　abrasive　wear　performance　of　TiC　hardfacing　alloy　introduced　by　in-situ　synthesis　was　5.2　times　higher　than　that　of　hardfacing　alloy　without　TiC　addition.　The　surfaces　of　three　kinds　of　hardfacing　alloys　after　the　impact-abrasion　test　have　similar　characteristics,　due　to　the　periodic　impact　of　abrasive　particles　leading　to　hardfacing　alloys　plastic　deformation　and　work-hardening　so　that　their　strength　and　hardness　rose,　plasticity　and　toughness　declined,　with　the　continued　impact　of　abrasive　particles,　cracking　occurred　in　the　material　and　the　cracks　continue　to　extend　within　the　material　causing　it　to　spalled.　The　hardness　of　added　TiC　hardfacing　alloys　was　higher,　can　more　effectively　resist　the　embedding　of　abrasive　particles,　and　reduce　the　generation　and　expansion　of　cracks　due　to　the　abrasive　particles　impact　on　the　surface　of　the　material　generated　by　the　plastic　deformation,　the　resistance　to　impact-abrasion　performance　is　more　excellent.　The　resistance　to　impact-abrasion　of　TiC　hardfacing　alloy　introduced　by　in-situ　synthesis　was　1.2　times　higher　than　that　of　hardfacing　alloy　without　TiC　addition.　The　resistance　to　abrasive　wear　and　impact-abrasion　of　the　hardfacing　alloy　with　in-situ　precipitation　of　TiC　is　better　than　that　of　the　hardfacing　alloy　with　the　direct　addition　of　TiC　to　the　powder　core.　TiC　significantly　improved　the　resistance　to　abrasive　wear　performance　and　impact-abrasion　performance　of　the　hardfacing　alloy,　in　which　the　performance　of　the　hardfacing　alloy　with　in-situ　precipitation　of　TiC　is　more　excellent,　which　can　provide　a　reference　for　the　research　and　application　of　TiC　in　wear-resistant　coatings　for　Soil-engaging　components　of　agricultural　machinery.