简介：Micro-finesphericalpowdersarerecommendedforselectivelasermelting(SLM).However,theyaremostlyexpensiveduetothecomplexmanufacturingtechniqueandlowyield.Inthispaper,usinglowcosttreatedhydride-dehydride(HDH)Tipowders,commercialpureTi(CP-Ti)wassuccessfullyfabricatedbySLM.After4-hmilling,theresultingpowdersbecomenear-sphericalwithnoobviousangularity,andhaveoptimalflowabilitywiththeapparentdensityof1.64±0.02g/cm^3,tapdensityof2.10±0.04g/cm^3,angleofrepose40.11±0.09,andCarr'sindexof77.74±0.15.Themicrostructurewasdeterminedw让hfullacicularmartensitica'phase.TheCP-Ticanachievesuperiormechanicalpropertieswiththeultimatetensilestrengthof876.1±20.5MPaandelongationof(14.7±0.5)%,whichexhibitdistinctlycompetitivecomparedtotheas-castCP-TiorTi-6A1-4V.Excellentmechanicalpropertiestogetherwith让slow-costmakeSLM-fabricatedCP-TifrommodifiedHDHTipowdersshowpromisingapplications.