2023.3,3（2）|材料装备技术与应用淬火工艺对2Cr13不锈钢组织和力学性能的影响刘睿，孙彦辉（北京科技大学钢铁共性技术协同创新中心，北京100083）摘要：针对因材料的硬度、韧性不足从而导致应用在牙科根管锉上的不锈钢容易发生的弯折、不易回复等现象，对2Cr13马氏体不锈钢的轧后热处理工艺进行了研究。以传统的淬火+回火的热处理方式为基础，通过调整淬火过程中的固溶温度来提高2Cr13马氏体不锈钢的强度和硬度，找到最佳的热处理工艺参数。采用商用软件Thermo-Calc计算了2Cr13马氏体不锈钢的相变点，并根据相变点设计了固溶温度变量。实验结果表明，材料淬火后得到了全马氏体组织，固溶温度在低于920℃时强度和硬度不断上升，在920℃时获得了最佳的硬度和强度，随后强度和硬度随着温度的上升不断下降，同时在温度不断升高的过程中也增大了材料的脆性。关键词：不锈钢；淬火；固溶处理；碳化物析出；马氏体Effectofquenchingprocessonmicrostructureandmechanicalpropertiesof2Cr13stainlesssteelLIURui,SUNYanhui（CollaborativeInnovationCenterofSteelTechnology，UniversityofScienceandTechnologyBeijing，Beijing，100083，China）Abstract：Duetothelackofhardnessandtoughnessofthematerial，thestainlesssteelusedindentalrootcanalfileiseasytobendandhardtorecover.Theheattreatmentprocessof2Cr13martensiticstainlesssteelafterrollingisstudied.Basedonthetraditionalheattreatmentmethodofquenching+tempering，thestrengthandhardnessof2Cr13martensiticstainlesssteelareimprovedbyadjustingthesolutiontemperatureduringquenching，andthebestheattreatmentprocessparametersarefound.Thephasetransformationpointof2Cr13martensiticstainlesssteeliscalculatedbyusingcommercialsoft-wareThermo-Calc，andthesolutiontemperaturevariableisdesignedaccordingtothephasetransfor-mationpoint.Theexperimentresultsshowthatthewholemartensitestructureisobtainedafterquench-ing.Thestrengthandhardnessincreasecontinuouslywhenthesolutiontemperatureislowerthan920℃，andthebesthardnessandstrengthareobtainedat920℃.Thenthestrengthandhardnessde-creasewithanincreaseofthetemperature，whilethebrittlenessofthematerialincreaseswithanin-creaseofthetemperature.Keywords：stainlesssteel；quenching；solutiontreat...
