Hot corrosion of YSZ/Al2O3 dispersed NiCrAlY plasma-sprayed coatings in Na2SO4-10 wt.% NaCl melt

被引：106

作者：

Sreedhar, Gosipathala ^{[1
]}

Raja, V. S. ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Met Engn & Mat Sci, Bombay 400076, Maharashtra, India

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 08期

关键词：

Metal coatings; Molten salts; Hot corrosion; Kinetics; THERMAL BARRIER COATINGS; YTTRIA-STABILIZED ZIRCONIA; NONDESTRUCTIVE EVALUATION; OXIDATION BEHAVIOR; RESIDUAL-STRESS; RESISTANCE; PIEZOSPECTROSCOPY; MICROSTRUCTURE; SUPERALLOY; POWDERS;

D O I：

10.1016/j.corsci.2010.04.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study examines the effect of ytrria stabilized zirconia (YSZ) dispersion on hot corrosion behaviour of NiCrAlY bond coat. Hot corrosion studies were conducted on NiCrAlY and NiCrAlY containing 25, 50 and 75 wt.% YSZ coatings obtained through the air plasma spray technique, in Na2SO4 + 10 wt.% NaCl environment at 800 degrees C. The results show that YSZ dispersion lowers the overall hot corrosion tendency of the NiCrAlY, though it enhances the inherent hot corrosion tendency of its metallic constituent (NiCrAlY). Furthermore, there exists a threshold oxide level beyond which it adversely affects the hot corrosion of the coating. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2592 / 2602

页数：11

共 50 条

[21] Tribological Behavior of Plasma-Sprayed Al2O3-20 wt.%TiO2 Coating
Cui, Shiyu
Miao, Qiang
Liang, Wenping
Zhang, Zhigang
Xu, Yi
Ren, Beilei
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2017, 26 (05) : 2086 - 2094
[22] 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
[23] Fabrication and Corrosion Resistance of Plasma-Sprayed Glass-Powder-Doped Al2O3-13 wt.%TiO2 Coatings
Wang, Zhixing
Zhang, Jingjing
Zhang, Hao
Li, Miao
Li, Tingju
Wang, Zhiqiang
JOURNAL OF THERMAL SPRAY TECHNOLOGY, 2020, 29 (03) : 500 - 509
[24] Laser Surface Modification of Air Plasma-Sprayed Al2O3/YSZ Multilayer Thermal Barrier Coating to Improve Hot Corrosion Resistance in V2O5–Na2SO4 Salts
Mohamad Sadegh Ahmadi
Reza Shoja-Razavi
Zia Valefi
Hossein Jamali
Journal of Thermal Spray Technology, 2019, 28 : 1906 - 1918
[25] An investigation of oxidation, hot corrosion , and thermal shock behavior of atmospheric plasma-sprayed YSZ-Al2O3 composite thermal barrier coatings
Avci, Ali
Eker, Aysegul Akdogan
Karabas, Muhammet
INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2020, 111 (07) : 567 - 580
[26] Laser remelting of plasma-sprayed conventional and nanostructured Al2O3-13 wt.%TiO2 coatings on titanium alloy
Li, Chonggui
Wang, You
Guo, Lixin
He, Junqi
Pan, Zhaoyi
Wang, Liang
JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 506 (01) : 356 - 363
[27] Hot Corrosion Behavior of Plasma-Sprayed WC-CoCr Coatings on AISI 316L Steel Substrate in Na2SO4-25% NaCl Salt Environment
Alam, Md Sarfaraz
Das, Anil Kumar
HIGH TEMPERATURE CORROSION OF MATERIALS, 2023, 99 (5-6) : 415 - 430
[28] Electrochemical Impedance Studies on Tribocorrosion Behavior of Plasma-Sprayed Al2O3 Coatings
Liu, Zhe
Chu, Zhenhua
Chen, Xueguang
Dong, Yanchun
Yang, Yong
Li, Yingzhen
Yan, Dianran
JOURNAL OF THERMAL SPRAY TECHNOLOGY, 2015, 24 (05) : 878 - 884
[29] A comparative study on hot corrosion resistance of three types of thermal barrier coatings:: YSZ, YSZ + Al2O3 and YSZ/Al2O3
Afrasiabi, Abbas
Saremi, Mohsen
Kobayashi, Akira
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 478 (1-2): : 264 - 269
[30] Corrosion behavior of plasma-sprayed Al2O3-Cr2O3 coatings in hot lithium molten salt
Cho, Soo Haeng
Park, Sung Bin
Kang, Dae Seong
Jeong, Myeong Soo
Park, Heong
Hur, Jin Mok
Lee, Han Soo
JOURNAL OF NUCLEAR MATERIALS, 2010, 399 (2-3) : 212 - 218

← 1 2 3 4 5 →