吴峥峥，工程师，2001年毕业于海军工程大学内燃机动力与机电管理专业。E-mail:navy_x@163.com淬火-回火热处理对超高强Fe-Mn-Al-C合金钢组织与力学性能影响研究吴峥峥1，赵剑飞1，周乃鹏2，罗小兵2（1.海装装备项目管理中心，北京100071；2.钢铁研究总院工程用钢研究所，北京100081）摘要：对一种成分为Fe-8Mn-8Al-0.8C的Fe-Mn-Al-C系超高强合金钢的热轧钢板进行“淬火+回火”热处理试验，研究其力学性能和微观组织。结果表明，试验用钢在热轧后由铁素体、奥氏体以及κ-碳化物三种物相组成，且组织呈现明显的带状，经热处理后κ-碳化物消除，热轧板在900℃保温1h后水淬200℃回火60min后呈现最优整体力学性能，抗拉强度达到1410MPa，延伸率为29%，强塑积达到41GPa·%。关键词：淬火-回火热处理；超高强Fe-Mn-Al-C合金钢；κ-碳化物；微观组织；力学性能中图分类号：TG386文献标识码：A文章编号：1006-4613（2023）01-0023-05DOI：10.3969/j.issn.1006-4613.2023.01.005StudyonEffectofQuenching-temperingHeatTreatmentonMicrostructuresandMechanicalPropertiesofUltra-highStrengthFe-Mn-Al-CAlloySteelWUZhengzheng1，ZHAOJianfei1，ZHOUNaipeng2，LUOXiaobing2（1.MarineEquipmentProjectManagementCenter，Beijing100071，China；2.ResearchInstituteofStructuralSteels，CentralIron&SteelResearchInstitute，Beijing100081，China）Abstract：Themechanicalpropertiesandmicrostructuresofhot-rolledFe-Mn-Al-Cultra-highstrengthalloysteelswithelementsofFe-8Mn-8Al-0.8CwerestudiedbasedontheirheattreatmenttestingbyQuenchingplusTempering.Thestudyresultsshowedthatthetestedsteelwascomposedofthreekindsofphasessuchasferrite,austeniteandκ-carbideafterhotrolling,anditsmicrostructureappeareddistinctbandedstructure.However,theκ-carbideswereeliminatedafterheattreatment,whilehotrolledsteelsheetsshowedthebestintegratedmechanicalpropertiesafterholdingat900℃for1hourandtemperingat200℃for60minutes,particularlythetensilestrengthreached1410MPa,theelongationwas29%andtheproductoftensilestrengthandelongationafterfracturereached41GPa·%.Keywords：quenching-temperingheattreatment；ultra-highstrengthFe-Mn-Al-Calloysteel；κ-carbide；microstructure；mechanicalproperty近年来，Fe-Mn-Al-C钢由于兼...
