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个人信息Personal Information
教授 博士生导师
招生学科专业:
材料科学与工程 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
机械 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
材料与化工 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
能源动力 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
主要任职:南京航空航天大学国防科研处副处长
其他任职:中国航空研究院研究生院院长助理兼研究生培养处处长
性别:女
毕业院校:太原理工大学
学历:太原理工大学
学位:工学博士学位
所在单位:材料科学与技术学院
办公地点:南京航空航天大学材料科学与技术学院江宁校区东A 517
联系方式:15996239395
电子邮箱:
Isothermal oxidation behavior of NiCoCrAlY/ZrO2 composite coating on gamma-TiAl alloy
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所属单位:材料科学与技术学院
发表刊物:MATERIALS RESEARCH EXPRESS
关键字:gamma-TiAl alloy NiCoCrAlY/ZrO2 composite coating interdiffusion high temperature oxidation magnetron sputtering
摘要:In this study, a composite NiCoCrAlY/ZrO2 coating was applied to enhance the property of oxidation resistance on the surface of gamma-TiAl alloys ultilizing radio frequency magnetron sputtering. The phase formation, microstrure and chemical composition of the coatings were investigated by x-ray diffraction (XRD) and scanning electron microscopy(SEM). The interlayer binding force was analyzed using scratch test. Further, static oxidation test was carried out at 950 degrees C and the oxidation behavior of the coating was investigated. The results indicated the NiCoCrAlY/ZrO2 coating showed high adhesion strength (critical load > 57.5 N) and the oxidation of the coating obeyed a parabolic law. Above all, the oxidation resistance of the substrate was remarkably enhanced after introducing the NiCoCrAlY/ZrO2 coating. The oxidation resistance enhancement could be attributed to the formation of a protective Al2O3 scale. Besides, the ceramic layer ZrO2 blocked the infiltration of O atoms during high-temperature oxidation.
ISSN号:2053-1591
是否译文:否
发表时间:2018-06-01
合写作者:Ding, Zheng,Miao, Qiang,Yang, Zhengang,Lin, Hao
通讯作者:Ding, Zheng,Miao, Qiang,梁文萍