轧辊表面激光雕刻仿生非光滑形态耐磨性研究

261Vol.26,No.120062APPLIEDLASERFebruary2006331,22221(1,,6500932,,100081)(),,:23,:,,StudyofAbrasiveWearResistanceofBionicsNon-smoothTopographyonRollerSurfaceMadebyLaserCarvingTechnologyQiYanchang1,2MaChengyong2PengYun2TianZhiling2HuaYixin1(1KunmingUniversityofScience&Tech.Kunming650093;2CentralIron&SteelResearchInstitute,Beijing100081)AbstractFourkindsofbionicsnonsmoothtopography(convexconcaverippleandsquama)weremadebyLaserCarvingTechnologyonmaterialsurface.Abrasivewearresistanceoffourkindsofbionicsnonsmoothsurfaceandsmoothsurfacewasinvestigated.MetallographicalmicrostructureofbasematerialandmaterialprocessedbyLaserCarvingTechnologywasana2lyzed.Theexperimentalresultsshowthatabrasivewearresistanceoffourkindsofbionicsnon-smoothtopographyistwoorthreetimeshigherthanthatofsmoothsurface,andabrasivewearresistanceofsquamaisthebestinthefourkindsofbionicssmoothsurface.ThereasonforabrasivewearresistanceenhancementofbionicssmoothsurfacemadebyLaserCarvingTech2nologyisgrainsuper-refiningstrengthening,hardening,effectofdowelpinandbionics.KeywordsLaserCarving;BionicsNon-smooth;AbrasiveWear;StrengtheningMechanism,,,,[1],(LTH)(LSM)(LSG)(LSC)(LSA)(LCVD)(LPVD)[2],,,[3],[4,5],,,1.,1625mm,(LaserCarvingTechnolony),,,,12.13:(863,2002AA331180)20051016S4300,LeicaMEF4,100gML10,400g700g1000g;60r/min120r/min;120#300#600#;30s60s90s,(0.1mg)1.2,M6C[6],M2C,,,Table1ChemicalCompositionsofExperimentalMaterial(Weight%)CSiMnCrMoVWNbPS1.81.90.70.90.40.64.95.13.94.14.95.11.92.10.91.10.050.05(a)(b)(c)(d)123285m,,,,3,0.6m,;,1.3m,,2.,,4(MZ),,4;,,,1027HV,,,,;,,724HV,,,,(PTZ),,1120HV;(HAZ),528HV;(BM),,720HV,,,,,3.(1)5(a)(700g,120r/(a)(b)(c)()(d)53min,120#);5(b)(60s,120r/min,120#);5(c)()(700g,120r/min,60s);5(d)(700g,120#)5(a)(d),(23),,(2)1),,,(85m)(0.61.3m),,,,,,,,,[7]:V=k-1/45/4d1/2KIC-5/4H-1/2V,k,,d,KIC,H),KICH,[8]2),,;,,;,,,,,[9]3),,,,,[10],,66(1),,,,(2)23,,(3),,;,,[1],,2005,(1):47.[2],,,2002.194199.[3]R.Luquan,etal,ChineseScienceBulletin,1995,40(13):1077[4],,1996,27(2):14.[5],,1995,11:1416.[6],.,2002.68[7]RigneyD.A,etal,Ohio:ASM,1980:7785.[8],,2004,29(10):1417.[9]HanZhiwu,etal,J.BionicsEngineering,2005,2920:63[10],,2004,12(6):561568.4