Effect of ion implantation on growth of thermally grown oxide in MCrAlY coating for TBC

被引：10

作者：

Byon, Eungsun ^{[1
]}

Zhang, Shihong ^{[1
]}

Lee, Sung-Hun ^{[1
]}

Lee, Goo-Hyun ^{[1
]}

Kwon, Sik-Chol ^{[1
]}

机构：

[1] KIMS, Mat Proc Res Dept, Chang Won 641010, Kyungnam, South Korea

来源：

SURFACE & COATINGS TECHNOLOGY | 2010年 / 205卷

关键词：

Plasma source ion implantation; Thermally grown oxide; Thermal barrier coating; Oxidation; OXIDATION; BEHAVIOR;

D O I：

10.1016/j.surfcoat.2010.08.134

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Thermal barrier coatings (TBCs) have been widely used in various gas turbines for aircraft propulsion and power generation. TBCs consist of a metal bond coat and a ceramic top coat of YSZ. It is generally known that the TBC' life strongly depends on the thermally grown oxide (TGO) because failure of TBCs occurs when the TGO reached a critical thickness. In this study, ion implantation of novel elements has been made on the bond coat which acts as an oxidation barrier for suppressing the TGO growth. The effects of type of ion implanted elements on the TGO formation were investigated. The oxidized specimens at 1150 degrees C were characterized by SEM, XRD, RBS and AES. From the results, CoNiCrAlY bond coat with an oxidation barrier was found to be effective in suppressing growth of the TGO. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：S435 / S438

页数：4

共 8 条

[1]

ANDERS A, 1995, NUCL INSTRUM METH B, V1, P132

[2] SOME NOVEL SURFACE MODIFICATION APPLICATIONS OF A NEW KIND OF HIGH-CURRENT METAL-ION IMPLANTATION FACILITY [J].

BROWN, IG ;

DICKINSON, MR ;

GALVIN, JE ;

GODECHOT, X ;

MACGILL, RA .

JOURNAL OF MATERIALS ENGINEERING, 1991, 13 (03) :217-228

[3] Microstructure formation in plasma-sprayed functionally graded NiCoCrAlY/yttria-stabilized zirconia coatings [J].

Dong, ZL ;

Khor, KA ;

Gu, YW .

SURFACE & COATINGS TECHNOLOGY, 1999, 114 (2-3) :181-186

[4] Oxidation and sulfidation behavior of AlTiN-coated Ti-46.7Al-1.9W-0.5Si intermetallic with CrN and NbN diffusion barriers at 850°C [J].

Du, HL ;

Datta, PK ;

Griffin, D ;

Aljarany, A ;

Burnell-Gray, JS .

OXIDATION OF METALS, 2003, 60 (1-2) :29-46

[5] Thermal barrier coatings for enhanced efficiency of gas turbine engines [J].

Gurrappa, I. ;

Rao, A. Sambasiva .

SURFACE & COATINGS TECHNOLOGY, 2006, 201 (06) :3016-3029

[6] Cyclic oxidation behavior and microstructure evolution of aluminized, Pt-aluminized high velocity oxygen fuel sprayed CoNiCrAlY coatings [J].

Lee, Jiing-Herng ;

Tsai, Pi-Chuen ;

Lee, Jyh-Wei .

THIN SOLID FILMS, 2009, 517 (17) :5253-5258

[7] Evaluation of interface degradation during cyclic oxidation of EB-PVD thermal barrier coatings and correlation with TGO luminescence [J].

Tolpygo, VK ;

Clarke, DR ;

Murphy, KS .

SURFACE & COATINGS TECHNOLOGY, 2004, 188 :62-70

[8] The effect of niobium-ion implantation on the oxidation behavior of γ-TiAl alloys in static and flowing air [J].

Zhu, YC ;

Zhang, Y ;

Li, XY ;

Fujita, K ;

Iwamoto, N .

OXIDATION OF METALS, 2001, 55 (1-2) :119-135

← 1 →