Hot corrosion behavior of Sc2O3-Y2O3-ZrO2 thermal barrier coatings in presence of Na2SO4 + V2O5 molten salt

被引：77
|
作者：
Liu, Huai-fei [1 ]
Xiong, Xiang [2 ]
Li, Xiao-bin [1 ]
Wang, Ya-lei [2 ]
机构：
[1] Cent S Univ, Sch Met & Environm, Changsha 410083, Peoples R China
[2] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
来源：
CORROSION SCIENCE | 2014年 / 85卷
基金：
中国国家自然科学基金;
关键词：
Ceramic; SEM; XRD; Hot corrosion; YTTRIA-STABILIZED ZIRCONIA; TETRAGONAL PHASE-STABILITY; HIGH-TEMPERATURE CORROSION; EVOLUTION; CONDUCTIVITY; RESISTANCE; SCANDIA; YSZ;
D O I：
10.1016/j.corsci.2014.04.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Sc2O3, Y2O3-stabilized ZrO2 (ScYSZ) thermal barrier coatings (TBCs) were prepared on nickel-based super-alloys by air plasma spraying. Hot corrosion behavior of the ScYSZ TBCs was investigated in presence of Na2SO4 + V2O5 salt at 1000 degrees C. Results show that the ScYSZ coating exhibits superior chemical stability and improved phase stability in comparison with traditional YSZ coating. During corrosion, the destabilization of ScYSZ is attributed to the deficiency of stabilizers resulted from the synergic mineralization effect of vanadium-containing compounds. The tetragonal-to-monoclinic phase transformation of zirconia can induce the formation of cracks in ScYSZ coating, which is responsible for the degradation of the TBCs. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：87 / 93
页数：7
相关论文
共 50 条
  • [1] Hot Corrosion Behavior of BaLa2Ti3O10 Thermal Barrier Ceramics in V2O5 and Na2SO4 + V2O5 Molten Salts
    Liu, Hui
    Cai, Jin
    Zhu, Jihong
    COATINGS, 2019, 9 (06):
  • [2] Hot corrosion behavior of nanostructured Gd2O3 doped YSZ thermal barrier coating in presence of Na2SO4 + V2O5 molten salts
    Wang, Yixiong
    Zhou, Chungen
    PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL, 2017, 27 (04) : 507 - 513
  • [3] Hot corrosion behaviors of Sc2O3-Gd2O3-Y2O3 co-doped ZrO2 in Na2SO4 + V2O5 molten salts at 1000°C
    Dai, Yifei
    Liao, Yuxuan
    He, Aoping
    He, Huan
    Liang, Tianquan
    INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, 2025, 22 (01)
  • [4] Hot corrosion behaviors of SrZrO3 ceramic co-doped with Y2O3 and Yb2O3 in molten Na2SO4, V2O5, and Na2SO4 + V2O5 salts mixture
    Dong, Hongying
    Ren, Yi
    Wang, Dongxing
    Li, Xiaoying
    Bai, Yu
    Wang, Jun
    Ma, Wen
    JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2014, 34 (15) : 3917 - 3924
  • [5] Hot Corrosion Behavior of Inconel 625 in Na2SO4 and V2O5 Molten Salt System
    Li, Liang
    Li, Lanfeng
    Zhang, Guofeng
    Xue, Hongdi
    Cui, Maomao
    Wang, Wenxu
    Liu, Dexue
    METALS, 2023, 13 (06)
  • [6] Hot corrosion behaviour of plasma-sprayed functionally graded thermal barrier coatings in the presence of Na2SO4 + V2O5 molten salt
    Vakilifard, Hamide
    Ghasemi, Reza
    Rahimipour, Mohammadreza
    SURFACE & COATINGS TECHNOLOGY, 2017, 326 : 238 - 246
  • [7] Hot corrosion behavior of NdYbZr2O7 exposed to V2O5 and Na2SO4 + V2O5 molten salts
    Wu, Yang
    Bai, Zhiming
    Zheng, Lei
    He, Wenting
    Guo, Hongbo
    CERAMICS INTERNATIONAL, 2020, 46 (07) : 8543 - 8552
  • [8] Effect of scandia content on the hot corrosion behavior of Sc2O3 and Y2O3 co-doped ZrO2 in Na2SO4 + V2O5 molten salts at 1000 °C
    Chen, Chao
    Liang, Tianquan
    Guo, Yan
    Chen, Xiyong
    Man, Quanyan
    Zhang, Xiuhai
    Zeng, Jianmin
    Ji, Vincent
    CORROSION SCIENCE, 2019, 158
  • [9] Hot-corrosion resistance and phase stability of Yb2O3-Gd2O3-Y2O3 costabilized zirconia-based thermal barrier coatings against Na2SO4 + V2O5 molten salts
    Song, Dowon
    Song, Taeseup
    Paik, Ungyu
    Lyu, Guanlin
    Kim, Junseong
    Yang, SeungCheol
    Jung, Yeon-Gil
    SURFACE & COATINGS TECHNOLOGY, 2020, 400
  • [10] Factors Affecting the Performance of Thermal Barrier Coatings in the Presence of V2O5 and Na2SO4
    Jonnalagadda, K. P.
    Eriksson, R.
    Peng, R. L.
    Li, X. -H.
    Johansson, S.
    JOURNAL OF CERAMIC SCIENCE AND TECHNOLOGY, 2016, 7 (04): : 409 - 415
12345