Effects of targeted γ-Ni plus γ′-Ni3Al-based coating compositions on oxidation behavior

被引：55

作者：

Izumi, T. ^{[1
]}

Mu, N. ^{[1
]}

Zhang, L. ^{[1
]}

Gleeson, B. ^{[1
]}

机构：

[1] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA

来源：

SURFACE & COATINGS TECHNOLOGY | 2007年 / 202卷 / 4-7期

关键词：

gamma plus gamma alloys and coatings; Pt plus Hf addition; high-temperature oxidation;

D O I：

10.1016/j.surfcoat.2007.08.014

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The 1150 degrees C oxidation behavior of gamma + gamma'-based alloys containing up to 20 at.% Pt and 15-22 at.% Al was investigated in an effort to further develop and optimize alternative bond coating compositions for advanced thermal barrier coating systems. It was found that the co-addition of Pt and Hf was extremely beneficial to oxidation resistance, to the extent that Ni-20Al-20Pt-Hf and Ni-20Al-10Pt-Hf alloys oxidized at significantly slower rates than a Ni-50Al-15Pt beta-NiAl alloy. Moreover it was found that there is an optimum Hf content that depends on Pt content in the alloy. A feasible method to deposit Pt + Hf-modified gamma + gamma' coatings having overall compositions closely approaching those targeted (Ni-Al15-20-Pt15-20-Hf) on the basis of the bulk-alloy study was subsequently developed. Cyclic oxidation testing of a representative gamma + gamma' coating at 1150 degrees C in air revealed the absence of surface rumpling and excellent compatibility with the superalloy substrate as major advantages compared to traditional Pt-modified beta-NiAl coatings. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：628 / 631

页数：4

共 16 条

[1] Comparison of inward and outward grown Pt modified aluminide diffusion coatings on a Ni based single crystal superalloy [J].

Angenete, J ;

Stiller, K .

SURFACE & COATINGS TECHNOLOGY, 2002, 150 (2-3) :107-118

[2] Degradation of the platinum aluminide coating on CMSX4 at 1100 degrees C [J].

Chen, JH ;

Little, JA .

SURFACE & COATINGS TECHNOLOGY, 1997, 92 (1-2) :69-77

[3] Materials design for the next generation thermal barrier coatings [J].

Clarke, DR ;

Levi, CG .

ANNUAL REVIEW OF MATERIALS RESEARCH, 2003, 33 :383-417

[4] Thermal barrier coatings for aeroengine applications [J].

Gleeson, B .

JOURNAL OF PROPULSION AND POWER, 2006, 22 (02) :375-383

[5] Effects of platinum on the interdiffusion and oxidation behavior of Ni-Al-based alloys [J].

Gleeson, B ;

Wang, W ;

Hayashi, S ;

Sordelet, D .

HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 6, PRT 1 AND 2, PROCEEDINGS, 2004, 461-464 :213-222

[6]

GLEESON B, 2006, Patent No. 20060127695

[7] Oxidation behavior of Pt plus Hf-modified γ-Ni plus γ′-Ni3Al alloys [J].

Izumi, Takeshi ;

Gleeson, Brian .

HIGH-TEMPERATURE OXIDATION AND CORROSION 2005, 2006, 522-523 :221-228

[8] A comparative study of cyclic oxidized Ir aluminide and aluminized nickel base single crystal superalloy [J].

Kuppusami, P ;

Murakami, H .

SURFACE & COATINGS TECHNOLOGY, 2004, 186 (03) :377-388

[9] Substrate and bond coat compositions: factors affecting alumina scale adhesion [J].

Pint, BA ;

Wright, IG ;

Lee, WY ;

Zhang, Y ;

Prussner, K ;

Alexander, KB .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 245 (02) :201-211

[10] A RELATIONSHIP BETWEEN INDIGENOUS IMPURITY ELEMENTS AND PROTECTIVE OXIDE SCALE ADHERENCE CHARACTERISTICS [J].

SMEGGIL, JG ;

FUNKENBUSCH, AW ;

BORNSTEIN, NS .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1986, 17 (06) :923-932

← 1 2 →