Tribologicalperformanceofsteelmater

Tribologicalperformanceofsteelmaterialscanbesubstantiallyenhancedbyvariousthermalsurface
hardening processes.Forrelativelylow-carbonsteelalloys,casecarburizationisoftenusedtoimprove
surface performanceanddurability.Ifthecarboncontentofsteelishighenough(40.4%), thermal
treatments suchasinduction, flame, laser,etc.canproduceadequatesurfacehardeningwithouttheneed
for surfacecompositionalchange.Thispaperpresentsanexperimentalstudyoftheuseoffrictionstir
processing (FSP)asameanstohardenedsurfacelayerinAISI4140steel.Theimpactsofthissurface
hardening processonthefrictionandwearperformancewereevaluatedunderbothdryandlubricated
contact conditionsinreciprocatingsliding.FSPproducedthesamelevelofhardeningandsuperior
tribologicalperformancewhencomparedtoconventionalthermaltreatment,usingonly10%oftheenergy
andwithouttheneedforquenchingtreatments.WithFSPsurfacehardnessofabout7.8GPa(62Rc)was
achievedwhilewaterquenchingconventionalheattreatmentproducedabout7.5GPa(61Rc)hardness.
MicrostructuralanalysisshowedthatbothFSPandconventionalheattreatmentproducedmartensite.
AlthoughthefrictionbehaviorforFSPtreatedsurfacesandtheconventionalheattreatmentwereabout
thesame,thewearinFSPprocessedsurfaceswasreducedbyalmost2
thatofconventionalheattreated
surfaces.ThesuperiorperformanceisattributedtotheobservedgrainrefinementaccompanyingtheFSP
treatmentinadditiontotheformationofmartensite.Asitrelatestotribologicalperformance,thisstudy
showsFSPtobeaneffective,highlyenergyefficient,andenvironmentalfriendly(green)alternativeto
conventionalheattreatmentforsteel.

ผลลัพธ์ (ไทย) 1:

Tribologicalperformanceofsteelmaterialscanbesubstantiallyenhancedbyvariousthermalsurfaceกระบวนการแข็ง Forrelativelylow-carbonsteelalloys, casecarburizationisoftenusedtoimproveperformanceanddurability ผิว Ifthecarboncontentofsteelishighenough(40.4%) ความร้อนรักษา suchasinduction เปลวไฟ laser,etc.canproduceadequatesurfacehardeningwithouttheneedสำหรับ surfacecompositionalchange Thispaperpresentsanexperimentalstudyoftheuseoffrictionstirประมวลผล (FSP)asameanstohardenedsurfacelayerinAISI4140steel.Theimpactsofthissurfaceprocessonthefrictionandwearperformancewereevaluatedunderbothdryandlubricated แข็งติดต่อ conditionsinreciprocatingsliding FSPproducedthesamelevelofhardeningandsuperiortribologicalperformancewhencomparedtoconventionalthermaltreatment, usingonly10% oftheenergyandwithouttheneedforquenchingtreatments WithFSPsurfacehardnessofabout7.8GPa (62Rc) ได้achievedwhilewaterquenchingconventionalheattreatmentproducedabout7.5GPa (61Rc) ความแข็งMicrostructuralanalysisshowedthatbothFSPandconventionalheattreatmentproducedmartensiteAlthoughthefrictionbehaviorforFSPtreatedsurfacesandtheconventionalheattreatmentwereaboutthatofconventionalheattreated thewearinFSPprocessedsurfaceswasreducedbyalmost2 เดียวกันพื้นผิว ThesuperiorperformanceisattributedtotheobservedgrainrefinementaccompanyingtheFSPtreatmentinadditiontotheformationofmartensite Asitrelatestotribologicalperformance, thisstudyshowsFSPtobeaneffective, highlyenergyefficient, alternativeto andenvironmentalfriendly (สีเขียว)conventionalheattreatmentforsteel

ผลลัพธ์ (ไทย) 3:

tribologicalperformanceofsteelmaterialscanbesubstantiallyenhancedbyvariousthermalsurface
กระบวนการแข็งตัว forrelativelylow carbonsteelalloys performanceanddurability , พื้นผิว casecarburizationisoftenusedtoimprove

ifthecarboncontentofsteelishighenough ( 40.4 % ) , การรักษาความร้อน
suchasinduction , เปลวไฟ , เลเซอร์ , etc.canproduceadequatesurfacehardeningwithouttheneed
สำหรับ surfacecompositionalchange .thispaperpresentsanexperimentalstudyoftheuseoffrictionstir
การประมวลผล ( FSP ) asameanstohardenedsurfacelayerinaisi4140steel . theimpactsofthissurface

ติดต่อ conditionsinreciprocatingsliding แข็ง processonthefrictionandwearperformancewereevaluatedunderbothdryandlubricated tribologicalperformancewhencomparedtoconventionalthermaltreatment fspproducedthesamelevelofhardeningandsuperior
, .usingonly10 % oftheenergy
andwithouttheneedforquenchingtreatments . withfspsurfacehardnessofabout7.8gpa ( 62rc )
achievedwhilewaterquenchingconventionalheattreatmentproducedabout7.5gpa ( 61rc ) ความแข็ง microstructuralanalysisshowedthatbothfspandconventionalheattreatmentproducedmartensite

.
althoughthefrictionbehaviorforfsptreatedsurfacesandtheconventionalheattreatmentwereabout เดียวกันthewearinfspprocessedsurfaceswasreducedbyalmost2
thatofconventionalheattreated
พื้นผิว thesuperiorperformanceisattributedtotheobservedgrainrefinementaccompanyingthefsp
treatmentinadditiontotheformationofmartensite . asitrelatestotribologicalperformance การศึกษา showsfsptobeaneffective highlyenergyefficient andenvironmentalfriendly
, , ( สีเขียว ) alternativeto

conventionalheattreatmentforsteel .