Hot corrosion of sputtered nanocrystalline coating with and without preoxidation and arc ion plating coating on a Ni-based single-crystal superalloy

被引：2

作者：

Yang, Xiaowen ^{[1
]}

Lu, Yiliang ^{[2
]}

Wang, Jinlong ^{[1
]}

Chen, Zehao ^{[1
]}

Zhang, Qiang ^{[2
]}

Chen, Minghui ^{[1
]}

Zhang, Jianqiang ^{[3
]}

Wang, Fuhui ^{[1
]}

机构：

[1] Northeastern Univ, Corros & Protect Ctr, Shenyang 110819, Peoples R China

[2] State Grid Smart Grid Res Inst Co Ltd, State Key Lab Adv Power Transmiss Technol, Beijing 102209, Peoples R China

[3] UNSW Sydney, Sch Mat Sci & Engn, Sydney, Australia

来源：

APPLIED SURFACE SCIENCE | 2025年 / 679卷

基金：

中国国家自然科学基金;

关键词：

Superalloys; Metal coatings; Oxidation; Hot corrosion; HIGH-TEMPERATURE OXIDATION; REACTIVE-ELEMENT ADDITIONS; 750; DEGREES-C; ALUMINA SCALES; SELECTIVE OXIDATION; YTTRIUM ADDITION; BEHAVIOR; SULFATE; ALLOYS; GROWTH;

D O I：

10.1016/j.apsusc.2024.161182

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hot corrosion of the N5 nanocrystalline coating with 0.5 wt% Y addition with and without preoxidation under 75 wt% Na2SO4 + 25 wt% NaCl molten salts at 900 degrees C was investigated, in comparison with that of the NiCrAlY coating under the same condition. The results showed that the nanocrystalline coating with nano-columnar structure suffered more severe corrosion than NiCrAlY coating. The high density of grain boundaries in the nanocrystalline coating facilitated inward penetration of the corrosive medium and accelerated the destruction of the scale. Preoxidation significantly enhanced the corrosion resistance of the nanocrystalline coating by forming an exclusive Al2O3 scale on the surface that could prevent molten salt from accessing the coating surface. The coating preoxidized at 1000 degrees C exhibited the highest corrosion resistance with the least internal corrosion. Y stabilized Ta and/or S during preoxidation and subsequent corrosion process, improving the purity and stability of the scale. The coating preoxidized at 1100 degrees C performed worse than that at 1000 degrees C. The inferior corrosion resistance was attributed to the more Ta oxides segregation and faster consumption of Al at the higher preoxidation temperature, accelerating scale destruction during hot corrosion.

引用

页数：13

共 54 条

[1] The effects of yttrium addition on high-temperature oxidation of heat-resistant alloy with sulfur [J].

Amano, T ;

Isobe, H ;

Sakai, N ;

Shishido, T .

JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 344 (1-2) :394-400

[2] The morphology of alumina scales formed on Fe-20Cr-4Al-S alloys with reactive element (Y, Hf) additions at 1273 K [J].

Amano, T ;

Isobe, H ;

Yamada, K ;

Shishido, T .

MATERIALS AT HIGH TEMPERATURES, 2003, 20 (03) :387-393

[3] Effect of the θ-α-Al2O3 transformation in scales on the oxidation behavior of a nickel-base superalloy with an aluminide diffusion coating [J].

An, TF ;

Guan, HR ;

Sun, XF ;

Hu, ZQ .

OXIDATION OF METALS, 2000, 54 (3-4) :301-316

[4] Transmission electron microscopy observations on the phase composition and microstructure of the oxidation scale grown on as-polished and yttrium-implanted β-NiAl [J].

Choi, H. J. ;

Jedlinski, J. ;

Yao, B. ;

Sohn, Y. H. .

SURFACE & COATINGS TECHNOLOGY, 2010, 205 (05) :1206-1210

[5] The influence of the reactive element yttrium on the stress in alumina scales formed by oxidation [J].

Christensen, RJ ;

Tolpygo, VK ;

Clarke, DR .

ACTA MATERIALIA, 1997, 45 (04) :1761-1766

[6] Improved hot corrosion resistance of Al-gradient NiSiAlY coatings at 750 °C by pre-oxidation [J].

Cui, Tiancheng ;

Leng, Wencai ;

Zhou, Dapeng ;

Yu, Miao ;

Yuan, Zhiwei ;

Li, Jinlong ;

Wang, Yongxin ;

Wang, Liping .

SURFACE & COATINGS TECHNOLOGY, 2021, 417

[7] TRANSIENT OXIDATION OF SINGLE-CRYSTAL BETA-NIAL [J].

DOYCHAK, J ;

SMIALEK, JL ;

MITCHELL, TE .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1989, 20 (03) :499-518

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

Eliaz, N ;

Shemesh, G ;

Latanision, RM .

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

[9] Microstructure and hot corrosion behaviors of two Co modified aluminide coatings on a Ni-based superalloy at 700 °C [J].

Fan, Q. X. ;

Jiang, S. M. ;

Yu, H. J. ;

Gong, J. ;

Sun, C. .

APPLIED SURFACE SCIENCE, 2014, 311 :214-223

[10] THE TRANSITION FROM THE FORMATION OF MIXED SCALES TO THE SELECTIVE OXIDATION OF THE MOST-REACTIVE COMPONENT IN THE CORROSION OF SINGLE AND 2-PHASE BINARY-ALLOYS [J].

GESMUNDO, F ;

VIANI, F ;

NIU, Y ;

DOUGLASS, DL .

OXIDATION OF METALS, 1993, 40 (3-4) :373-393

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