8YSZ热障涂层结构设计与高温性能研究.docxVIP

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2024年第53卷第22期

Vol.53No.222024

热加工工艺

HotWorkingTechnology

ISSN1001-3814CN61-1133/TG

DOI:10.14158/j.cnki.1001-3814. rjggy@

8YSZ热障涂层结构设计与高温性能研究

张文展1,2,3,刘定荣1,邱小林1,2,裘承2,3,廖丹2,3,周冬兰2,3,陈秋香1,3

(1.南昌理工学院石墨烯与先进材料实验室,江西南昌330044;2.南昌理工学院江西省太阳能光电材料重点实验

室,江西南昌330044;3.南昌理工学院光伏电池研究所,江西南昌330044)

摘要院采用大气等离子喷涂技术在钛合金表面制备了不同厚度的NiCoCrAlY粘结层及8YSZ陶瓷层双层结构的热障涂层袁然后利用XRD尧SEM和高温性能实验等途径研究了涂层厚度对该系列涂层的物相尧微观形貌尧高温氧化尧隔热性能及高温热冲刷力学性能的影响遥结果表明院不同厚度的热障涂层都会呈现出典型的层状结构袁且涂层表面存在着完全熔融态尧半熔融态和未熔态等3种复杂状态遥不同厚度的热障涂层都具有良好的高温抗氧化性尧隔热效果和高温力学性能遥陶瓷层越厚袁涂层的高温抗氧化性和隔热效果越好袁但钛合金基体的抗拉强度却有所下降遥然而在高温工况下袁陶瓷层越厚越能够有效地保障钛合金的力学性能遥

关键词院大气等离子喷涂曰8YSZ曰等温氧化曰隔热效果曰抗拉强度

中图分类号院TG174.4 文献标识码院A 文章编号院1001-3814(2024)22-0028-06

StructuralDesignandStudyonHighTemperaturePerformanceof8YSZThermalBarrierCoating

ZHANGWenzhan1,2,3,LIUDingrong1,QIUXiaolin1,2,QIUCheng2,3,LIAODan2,3,

ZHOUDonglan2,3,CHENQiuxiang1,3

(1.GrapheneandAdvancedMaterialsLaboratory,NanchangInstituteofTechnology,Nanchang330044,China;2.KeyLaboratoryofJiangxiforSolarPhotoelectricMaterials,NanchangInstituteofTechnology,Nanchang330044,China;3.PhotovoltaicCellResearchInstitute,NanchangInstituteofTechnology,Nanchang330044,China)

Abstract院Double-layerstructuredthermalbarriercoatingscontainingNiCoCrAlYbondinglayersand8YSZceramic

layerswithdifferentthicknesswerepreparedonthesurfaceoftitaniumalloysbyatmosphericplasmasprayingtechnique.Then,theeffectsofcoatingthicknessonthephysicalphase,microscopicmorphology,hightemperatureoxidationofcoating,thermalinsulationperformanceandhightemperaturethermalscouringmechanicalpropertieswereinvestigatedbyXRD,SEMandhightemperatureperformanceexperiments.Theresultsshowthatthethermalbarriercoatingsofdifferentthicknessesexhibitatypicallaminarstructure.Andtherearethreecomplexstatesonthesurf