Improved Thermally Grown Oxide Scale in Air Plasma Sprayed NiCrAlY/Nano-YSZ Coatings

被引：16

作者：

Daroonparvar, Mohammadreza ^{[1
]}

Yajid, Muhamad Azizi Mat ^{[1
]}

Yusof, Noordin Mohd ^{[1
]}

Hussain, Mohammad Sakhawat ^{[1
]}

机构：

[1] Univ Teknol Malaysia, Fac Mech Engn, Dept Mat Mfg & Ind Engn, Johor Baharu 81310, Johor, Malaysia

来源：

JOURNAL OF NANOMATERIALS | 2013年 / 2013卷

关键词：

BARRIER COATINGS; BOND COAT; OXIDATION; BEHAVIOR; LAYER; PERFORMANCE; FAILURE;

D O I：

10.1155/2013/520104

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Oxidation has been considered as one of the principal disruptive factors in thermal barrier coating systems during service. So, oxidation behavior of thermal barrier coating (TBC) systems with nanostructured and microstructured YSZ coatings was investigated at 1000 degrees C for 24 h, 48 h, and 120 h. Air plasma sprayed nano-YSZ coating exhibited a trimodal structure. Microstructural characterization also demonstrated an improved thermally grown oxide scale containing lower spinels in nano-TBC system after 120 h of oxidation. This phenomenon is mainly related to the unique structure of the nano-YSZ coating, which acted as a strong barrier for oxygen diffusion into the TBC system at elevated temperatures. Nearly continues but thinner Al2O3 layer formation at theNiCrAlY/nano-YSZ interface was seen, due to lower oxygen infiltration into the system. Under this condition, spinels formation and growth on the Al2O3 oxide scale were diminished in nano-TBC system compared to normal TBC system.

引用

页数：9

共 22 条

[1] High performance nanostructured ZrO2 based thermal barrier coatings deposited by high efficiency supersonic plasma spraying [J].

Bai, Y. ;

Han, Z. H. ;

Li, H. Q. ;

Xu, C. ;

Xu, Y. L. ;

Wang, Z. ;

Ding, C. H. ;

Yang, J. F. .

APPLIED SURFACE SCIENCE, 2011, 257 (16) :7210-7216

[2] Pre-oxidation and TGO growth behaviour of an air-plasma-sprayed thermal barrier coating [J].

Chen, W. R. ;

Wu, X. ;

Marple, B. R. ;

Lima, R. S. ;

Patnaik, P. C. .

SURFACE & COATINGS TECHNOLOGY, 2008, 202 (16) :3787-3796

[3] The growth and influence of thermally grown oxide in a thermal barrier coating [J].

Chen, W. R. ;

Wu, X. ;

Marple, B. R. ;

Patnaik, P. C. .

SURFACE & COATINGS TECHNOLOGY, 2006, 201 (3-4) :1074-1079

[4] Modification of oxide layer in plasma-sprayed thermal barrier coatings [J].

Chen, WR ;

Wu, X ;

Dudzinski, D ;

Patnaik, PC .

SURFACE & COATINGS TECHNOLOGY, 2006, 200 (20-21) :5863-5868

[5] Oxidation and crack nucleation/growth in an air-plasma-sprayed thermal barrier coating with NiCrAlY bond coat [J].

Chen, WR ;

Wu, X ;

Marple, BR ;

Patnaik, PC .

SURFACE & COATINGS TECHNOLOGY, 2005, 197 (01) :109-115

[6] Effect of Al2O3 overlay on hot-corrosion behavior of yttria-stabilized zirconia coating in molten sulfate-vanadate salt [J].

Chen, Z ;

Wu, NQ ;

Singh, J ;

Mao, SX .

THIN SOLID FILMS, 2003, 443 (1-2) :46-52

[7] The role of formation of continues thermally grown oxide layer on the nanostructured NiCrAlY bond coat during thermal exposure in air [J].

Daroonparvar, Mohammadreza ;

Hussain, Mohammad Sakhawat ;

Yajid, Muhammad Azizi Mat .

APPLIED SURFACE SCIENCE, 2012, 261 :287-297

[8] Mechanisms controlling the durability of thermal barrier coatings [J].

Evans, AG ;

Mumm, DR ;

Hutchinson, JW ;

Meier, GH ;

Pettit, FS .

PROGRESS IN MATERIALS SCIENCE, 2001, 46 (05) :505-553

[9] Oxygen transport by gas permeation through the zirconia layer in plasma sprayed thermal barrier coatings [J].

Fox, AC ;

Clyne, TW .

SURFACE & COATINGS TECHNOLOGY, 2004, 184 (2-3) :311-321

[10]

Hussain M.S., 2012, P INT THERM SPRAY C, P200

← 1 2 3 →