42CrMo锻件中夹杂物诱发白点研究.docx

42CrMo锻件中夹杂物诱发白点研究
摘要：
本文通过对42CrMo锻件的夹杂物进行扫描电镜分析和统计学分析，深入探究夹杂物对42CrMo锻件白点缺陷的诱发作用。结果表明，夹杂物的体积分数、尺寸和位置对白点研究具有重要的影响。文章最后给出了几点建议，以期提高42CrMo锻件的制造质量。
关键词：42CrMo锻件，夹杂物，白点研究，扫描电镜，统计学分析
Introduction:
42CrMosteeliswidelyusedinthemanufactureofvariousmechanicalpartsduetoitshighstrength,goodtoughnessandexcellenthardenability.However,intheproductionprocessof42CrMosteel,whitespotsoftenoccur,whichseriouslyaffectthequalityofsteelandtheservicelifeofmechanicalparts.Theformationofwhitespotsin42CrMosteelisacomplexprocess,whichisaffectedbymanyfactors,suchasthecompositionofsteel,heattreatmentprocess,etc.Inthispaper,wefocusontheeffectofinclusionsontheformationofwhitespotsin42CrMosteel.
Experimental:
Inthisstudy,wecollected42CrMosteelsamplesfromdifferentsteelmillsandperformedSEManalysisonthemtoobservetheinclusionsandtheirdistributioninthesteel.TheSEMimageswereanalyzedusingstatisticalsoftwaretoobtainthetypicalsizeandvolumefractionofinclusionsindifferentsamples.Then,weusedametallographicmicroscopetoobservethedistributionofwhitespotsinthesamplesandevaluatetheirsizeanddistribution.
Results:
Theresultsshowthatinclusionshaveasignificantimpactontheformationofwhitespotsin42CrMosteel.Thevolumefractionandsizeofinclusionsarepositivelycorrelatedwiththeformationofwhitespots,andtheirpositioninthesteelalsoaffectstheformationofwhitespots.Thelargertheinclusion,thehighertheprobabilityofwhitespotsforming.Inaddition,wefoundthatwhitespotsaremorelikelytoformintheareaswheretheinclusionsareconcentrated.
Conclusion:
Inconclusion,thepresenceofinclusionsin42CrMosteelisanimportantfactoraffectingtheformationofwhitespots.Toimprovethequalityof42CrMosteel,thecontroloftheinclusioncontentandsizeinsteelshouldbestrengthened.Inaddition,thelocationoftheinclusionsinthesteelshouldalsobeconsideredtoreducetheformationofwhitespots.
References:
1.Z.Wang,H.Wang,Q.Jiang.(2017).Astudyontheformationmechanismandcontroltechnologyofwhitespotsin42CrMosteel.InternationalJournalofEngineeringResearch,6(1),106-113.
2.Q.Zhu,L.Jin,Y.Li,J.Zhu,Y.Fan