Microstructural evolution of thermal barrier coatings during isothermal oxidation

被引：3
|
作者：
Salazar, A. [1 ]
Gomez-Garcia, J. [1 ]
Poza, P. [1 ]
Utrilla, V. [1 ]
机构：
[1] Univ Rey Juan Carlos, Dept Ciencia & Ingn Mat, ESCET, C-Tulipan S-N, Madrid 28933, Spain
来源：
LAYERED, FUNCTIONAL GRADIENT CERAMICS, AND THERMAL BARRIER COATINGS: DESIGN, FABRICATION AND APPLICATIONS | 2007年 / 333卷
关键词：
thermal barrier coatings; thermal spray; oxidation; heat treatment; scanning electron microscopy; transmission electron microscopy; X ray diffraction;
D O I：
10.4028/www.scientific.net/KEM.333.269
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper analyses the degradation of a ceramic top coating 70%ZrO2 - 30%CaO deposited onto a stainless steel AISI 304 by thermal spray, using Ni-6%Al-5%Mo as overlay coating. These thermal barrier coatings were heat treated for 48, 120 and 288 h at 800 degrees C to evaluate the degradation of these materials by isothermal oxidation. The microstructure evolution during oxidation was analysed by environmental scanning electron microscopy, transmission electron microscopy and X ray microanalysis. A thermally grown oxide layer was observed between the overlay coating and the ceramic top coating after oxidation. This layer was formed by a mixed Al, Ni and Mo oxides.
引用
收藏
页码：269 / +
页数：2
相关论文
共 50 条
  • [41] Cracking evolution of atmospheric plasma-sprayed YSZ thermal barrier coatings subjected to isothermal heat treatment
    Weng, Wei-Xiang
    Zheng, Zhen-Huan
    Li, Qiang
    SURFACE & COATINGS TECHNOLOGY, 2020, 402
  • [42] Interface failure behavior of YSZ thermal barrier coatings during thermal shock
    Zhang, Hongye
    Liu, Zhanwei
    Yang, Xiaobo
    Xie, Huimin
    JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 779 : 686 - 697
  • [43] Electrochemical impedance spectroscopy of thermal barrier coatings as a function of isothermal and cyclic thermal exposure
    Jayaraj, B
    Vishweswaraiah, S
    Desai, VH
    Sohn, YH
    SURFACE & COATINGS TECHNOLOGY, 2004, 177 : 140 - 151
  • [44] Oxidation and thermal fatigue of EB-PVD thermal barrier coatings on tube superalloy substrate
    Gao Yu
    Zhang Chun-xia
    Zhou Chun-gen
    Gong Sheng-kai
    Xu Hui-bin
    TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2006, 16 : S10 - S13
  • [45] Characterization of thermal barrier coatings microstructural features using terahertz spectroscopy
    Ye, Dongdong
    Wang, Weize
    Zhou, Haiting
    Fang, Huanjie
    Huang, Jibo
    Li, Yuanjun
    Gong, Hanhong
    Li, Zhen
    SURFACE & COATINGS TECHNOLOGY, 2020, 394
  • [46] Life approximation of thermal barrier coatings via quantitative microstructural analysis
    Bargraser, C.
    Mohan, P.
    Lee, K.
    Yang, B.
    Suk, J.
    Choe, S.
    Sohn, Y. H.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 549 : 76 - 81
  • [47] INFLUENCE OF ISOTHERMAL EXPOSURE ON MICROSTRUCTURAL CHANGES RESULTING IN DELAMINATION OF EUTECTIC Al2O3+ZrO2+SiO2 THERMAL BARRIER COATINGS
    Jech, David
    Celko, Ladislav
    Chraska, Tomas
    Slamecka, Karel
    Klakurkova, Lenka
    Dubsky, Jiri
    Svejcar, Jiri
    METAL 2014: 23RD INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS, 2014, : 885 - 889
  • [48] Sintering and microstructure evolution in columnar thermal barrier coatings
    Krishnamurthy, Ramanathan
    Srolovitz, David J.
    ACTA MATERIALIA, 2009, 57 (04) : 1035 - 1048
  • [49] Analysis of interfacial crack initiation mechanism of thermal barrier coatings in isothermal oxidation process based on interfacial stress state
    Hu, Dianyin
    Lv, Zhengzhe
    Liu, Haiyan
    Jing, Fulei
    Wang, Rongqiao
    CERAMICS INTERNATIONAL, 2023, 49 (07) : 10287 - 10297
  • [50] Thermal barrier coatings: Review
    Vagge, S. T.
    Ghogare, Suraj
    MATERIALS TODAY-PROCEEDINGS, 2022, 56 : 1201 - 1216
12345