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《Effect of Surface Work Hardening on Wear Behavior of Hadfield Steel》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、MaterialsScienceandEngineeringA460461(2007)542549EffectofsurfaceworkhardeningonwearbehaviorofHadfieldsteelWeilinYana,∗,LiangFanga,KunSuna,YunhuaXubaStateKeyLaboratoryforMechanicalBehaviorofMaterials,XianJiaotongUniversity,Xian710049,PeoplesRepublicofChinabInstituteofWearResistanceMaterials,XianUniver
2、sityofArchitecture&Technology,Xian710055,PeoplesRepublicofChinaReceived27October2006;receivedinrevisedform19January2007;accepted22February2007AbstractShotpeeninghasbecomeaneffectivemethodtostrengthenalloy.Inthisinvestigation,ithasbeenusedtowork-hardenHadfieldsteel.Ithasbeenregardedthatthesurfacehardn
3、essofHadfieldsteelhasbeenincreasedgreatlyaftershotpeening.Usingelectronscanningmicroscope(SEM),highresolutiontransmissionelectronmicroscope(HRTEM)andX-raydiffraction(XRD)analysis,themicrostructureofshotpennedsurfacelayerwasexamined.Ithasbeenobservedthatananocrystallinesurfacelayerisformed.Thegrainsiz
4、esofsurfaceweredecreasedto11.117.4nmandthemaximumhardenedlayercanreachto100mafterthetreatment.Surfacehardnesswasalsoincreasedwithincreasingshotpeeningperiod.Two-bodyandthree-bodyabrasivewearexperimentswerecarriedoutforworkhardeningandoriginalspecimens,separately.Theresultsshowedthatthethree-bodywea
5、rresistanceofthenanocrystallizedHadfieldsteelhasdistinctlybeenimprovedusingsoftabrasiveparticles.Forharderabrasiveparticleslikeemerypaper,theincreasedhardnessandgrainrefinementbyshotpeeningcannotimprovetwo-bodyabrasivewearresistance.©2007ElsevierB.V.Allrightsreserved.Keywords:Hadfieldsteel;Workhardenin
6、g;Nanocrystalline;Hardness;Abrasivewear1.IntroductiontracksbyLojkowskietal.[13].Thoseworksarequiteinterestingandvaluable.Nanostructuredmaterials,withtheconsiderablereducedIsitpossibletouseworkhardeningtoincreasethewearresis-grainsizeandsignificantvolumefractionsofgrainboundaries,tanceofsteel?Khruscho
7、vandRichardson[1417]reportedthathaveexhibitedsuperiormechanicalpropertiescomparedtotheirincreasingthehardnessofmetalsbyworkhardeninghaslittlecoarsegraintypes.Forinstance,theypossesshighstrengthandeffe
