Preparation and hot corrosion behaviour of two Co modified NiAl coatings on a Ni-based superalloy

被引：55

作者：

Fan, Q. X. ^{[1
]}

Jiang, S. M. ^{[1
]}

Wu, D. L. ^{[1
]}

Gong, J. ^{[1
]}

Sun, C. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China

来源：

CORROSION SCIENCE | 2013年 / 76卷

关键词：

Metal coatings; Cobalt; SEM; Hot corrosion; Sulphidation; MODIFIED ALUMINIDE COATINGS; HIGH-TEMPERATURE CORROSION; PACK CEMENTATION PROCESS; OXIDATION BEHAVIOR; NICRAL ALLOYS; NICKEL; AL; MICROSTRUCTURE; CODEPOSITION; KINETICS;

D O I：

10.1016/j.corsci.2013.07.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two Co modified aluminide coatings with different Co contents were prepared by a combined method of pack cementation and chemical vapour deposition. The type-I hot corrosion tests of the two Co modified coatings together with the simple aluminide coating were carried out at 900 degrees C. Results indicate that the addition of cobalt could improve the corrosion resistance of the coatings in the sulphate salts, but exacerbate the degradation of the coatings when chloride salt gets involved. The formation mechanism of the Co modified aluminide coatings and the corrosion mechanism during the corrosion test have been discussed as well. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：373 / 381

页数：9

共 31 条

[1] Preparation and hot corrosion behaviour of an Al-gradient NiCoCrAlYSiB coating on a Ni-base superalloy [J].

Bao, Z. B. ;

Wang, Q. M. ;

Li, W. Z. ;

Liu, X. ;

Gong, J. ;

Xiong, T. Y. ;

Sun, C. .

CORROSION SCIENCE, 2009, 51 (04) :860-867

[2] Interdiffusion behaviour in aluminide-coated Rene 80H at 1150 degrees C [J].

Basuki, E ;

Crosky, A ;

Gleeson, B .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 224 (1-2) :27-32

[3] Calculation of precipitate dissolution zone kinetics in oxidising binary two-phase alloys [J].

Carter, P ;

Gleeson, B ;

Young, DJ .

ACTA MATERIALIA, 1996, 44 (10) :4033-4038

[4]

COSTA WD, 1996, SURF COAT TECH, V88, P165

[5]

Das N.N., 2000, US Patent, Patent No. 6146696

[6] The high temperature corrosion behaviour of Hf modified chromo-aluminised coatings produced by a single step process [J].

Du, HL ;

Kipkemoi, J ;

Tsipas, DN ;

Datta, PK .

SURFACE & COATINGS TECHNOLOGY, 1996, 86 (1-3) :1-8

[7] Hot corrosion in gas turbine components [J].

Eliaz, N ;

Shemesh, G ;

Latanision, RM .

ENGINEERING FAILURE ANALYSIS, 2002, 9 (01) :31-43

[8]

Ellis D.L., 1993, NASACR191082

[9] The structure and high temperature corrosion performance of medium-thickness aluminide coatings on nickel-based superalloy GTD-111 [J].

Firouzi, A. ;

Shirvani, K. .

CORROSION SCIENCE, 2010, 52 (11) :3579-3585

[10] THE HOT-CORROSION BEHAVIOR OF NOVEL CO-DEPOSITED CHROMIUM-MODIFIED ALUMINIDE COATINGS [J].

GLEESON, B ;

CHEUNG, WH ;

DACOSTA, W ;

YOUNG, DJ .

OXIDATION OF METALS, 1992, 38 (5-6) :407-424

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