第49卷第4期2023年8月文章编号：1673-5196(2023)04-0001-10TiAIN/Cr、TiAIN/CrN和TiAIN/CrAIN多层涂层的热盐腐蚀行为何泽年1.2，王顺花*1，蒲吉斌2（1.兰州交通大学材料科学与工程学院，甘肃兰州730070；2．中国科学院宁波材料技术与工程研究所，海洋新材料与应用技术重点实验室，浙江宁波315201）摘要：钛合金的热盐腐蚀问题已引起人们的广泛关注，金属氮化物防护涂层是延长钛合金服役寿命的有效途径.采用多弧离子镀技术在钛合金表面沉积了TiAIN/Cr涂层、TiAIN/CrN涂层、TiAIN/CrAIN-5涂层和TiAIN/CrAIN-10涂层.通过扫描电子显微镜（SEM)、能量色散谱仪（EDS）、X射线衍射仪（XRD)、划痕测试仪、3D激光显微镜等测试手段对比研究了4种多层涂层的热盐腐蚀行为，分析了涂层热盐腐蚀前后的微观形貌和物相成分.结果表明：Al元素的添加和调制周期的优化可以提高涂层的致密性，改善涂层表面质量.其中TiAIN/CrAIN-10多层涂层由于界面密度高，表现出优异的耐热盐腐蚀性能。关键词：热盐腐蚀；TiAIN/CrAIN涂层；界面密度；耐腐蚀性能中图分类号：TG174.4HotsaltcorrosionbehaviorofTiAIN/Cr,TiAIN/CrNandHEZe-nian'*2,WANGShun-hua',PUJi-bin?(1.SchoolofMaterialsScienceandEngineering,LanzhouJiaotongUniversity,Lanzhou73oo70,China;2.KeyLaboratoryofMarineMate-rialsandRelatedTechnologies,NingboInstituteofMaterialTechnologyandEngineering,ChineseAcademyofSciences,Ningbo315201,China)Abstract:Thehotsaltcorrosionoftitaniumalloyshasattractedextensiveattention.Metalnitrideprotec-tivecoatingisaneffectivewaytoextendtheservicelifeoftitaniumalloys.Inthisstudy,theTiAlN/Crcoating,TiAIN/CrNcoating,TiAIN/CrAIN-5coatingandTiAIN/CrAIN-10coatingweredepositedonti-taniumalloysurfacebyMulti-arcIonPlatingtechnology.ThedifferencesinhotsaltcorrosionbehavioroffourkindsofmultilayercoatingswerecomparedbyScanningElectronMicroscope(SEM),EnergyDisper-sionanalyzer(EDS),X-raydiffractometer(XRD),Scratchtesterand3DLaserMicroscope.Meanwhile,themicrostructureandphasecompositionofthecoatingswereanalyzedbeforeandafterhotsaltcorrosion.TheresultsindicatedthattheadditionofAlelementandtheoptimizationofmodulationperiodcanimprovethesurfacequalityofthecoating.Amongthem,TiAIN/CrAIN-10multilayercoatingshowsexc...
