V<sub>2</sub>O<sub>5</sub>对β-(Ni,Pt)Al涂层热腐蚀抗性的影响

doi:10.11896/cldb.24030041

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Abstract The β-(Ni, Pt)Al coating has excellent oxidation resistance and is used for thermal protection of hot section components in advanced gas turbine engine during service. The fuel combustion products are complex and can form molten salt deposits on the surface of components. Clarifying its corrosion mechanism is of great significance for improving the comprehensive performance of β-(Ni, Pt)Al coatings. Except for the research on the hot corrosion behavior of single component Na₂SO₄ molten salt, the corrosion mechanism of β-(Ni, Pt)Al coating under the deposition of Na₂SO₄+V₂O₅ mixed salt is still unclear. This work prepared single-phase β-(Ni, Pt)Al coatings deposited by Na₂SO₄ and Na₂SO₄+V₂O₅, respectively, and compared their corrosion behaviors under thermal cycles from 950 ℃ to room temperature. Through analysis of hot corrosion kinetics, phase evolution of corrosion products, and corrosion morphology evolution, it was found that the corrosion of Na₂SO₄+V₂O₅ mixed salt exhibited greater oxidation weight gain and deeper corrosion depth. Compared to single Na₂SO₄ corrosion, the V₂O₅ leads to acidic melting of the initial oxide film, causing it to lose its protective effect. V₂O₅ also accelerated the precipitation of Pt from the β-(Ni, Pt)Al phase, which deteriorated the oxidation resistance of the coating. This work reveals the mechanism of V₂O₅ accelerating hot corrosion, which has important guiding significance for improving the hot corrosion resistance of β-(Ni, Pt)Al coatings.

Key words： Pt-Al coating Na₂SO₄ V₂O₅ hot corrosion

Published: 10 April 2025 Online: 2025-04-10

CLC number:

TG171

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	Articles by authors
	YE Liya
	CHEN Hongfei
	YANG Guang
	GAO Yanfeng

Cite this article:

YE Liya,CHEN Hongfei,YANG Guang, et al. Effect of V₂O₅ on the Hot Corrosion Resistance of β-(Ni, Pt)Al Coating[J]. Materials Reports, 2025, 39(7): 24030041-4.

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https://www.mater-rep.com/EN/10.11896/cldb.24030041 OR https://www.mater-rep.com/EN/Y2025/V39/I7/24030041

1 Gheno T, Gleeson B. Oxidation of Metals, 2015, 84(5), 1.
2 Pollock T M, Lipkin D M, Hemker K J, et al. MRS Bulletin, 2012, 37(10), 923.
3 Tawancy H M. Oxidation of Metals, 2014, 81(1), 237.
4 Xu Z, Wang Z, Huang G, et al. Journal of Alloys and Compounds, 2015, 637, 226.
5 Tolpygo V K, Clarke D R. Surface & Coatings Technology, 2009, 203(20), 3278.
6 Deodeshmukh V, Gleeson B. Oxidation of Metals, 2011, 76(1), 43.
7 Task M N, Gleeson B, Pettit F S, et al. Oxidation of Metals, 2013, 80(5), 541.
8 Saegusa F, Shores D A. Journal of Materials for Energy Systems, 1982, 4(1), 16.
9 Barbooti M M, Al-Madfai S H, Nassouri H J, et al. Thermochimica Acta, 1988, 126, 43.
10 Das D K. Progress in Materials Science, 2013, 58(2), 151.
11 Shirvani K, Rashidghamat A. Oxidation of Metals, 2016, 85(1), 75.
12 Mannava V, Rao A S, Paulose N, et al. Corrosion Science, 2016, 105, 109.
13 Rahmel A. Materials & Corrosion, 1988, 39(7), 354.
14 Stringer J. Annual Review of Materials Research, 1977, 7(1), 477.
15 Rapp R A. Corrosion Science, 2002, 44, 209.
16 Ye L Y, Chen H F, Yang G, et al. International Journal of Materials Research, 2017, 109(1), 3.
17 Dryepondt S, Porter J R, Clarke D R, et al. Acta Materialia, 2009, 57(6), 1717.
18 Clarke D R, Oechsner M, Padture N P, et al. MRS Bulletin, 2012, 37(10), 891.
19 Chen Y, Zhao X, Bai M, et al. Acta Materialia, 2015, 86, 319.
20 Birks N, Meier G H, Pettit F S. Introduction to the high temperature oxidation of metals 2nd Ed, Cambridge University Press, UK, 2006, pp. 177.
21 Ardelean H, Seyeux A, Zanna S, et al. Corrosion Science, 2013, 73(2), 196.
22 Peng X, Jiang S M, Sun X D, et al. Acta Metallurgica Sinica, 2016, 52(5), 625 (in Chinese).
彭新, 姜肃猛, 孙旭东, 等. 金属学报, 2016, 52(5), 625.
23 Marzena M K, Elzbieta G. Corrosion Science, 2017, 115, 18.
24 Li M J, Sun X F, Guan H R, et al. Acta Metallurgica Sinica, 2004, 40(7), 773 (in Chinese).
李猛进, 孙晓峰, 管恒荣, 等. 金属学报, 2004, 40(7), 773.
25 Singh H, Puri D, Prakash S. Reviews on Advanced Materials Science, 2007, 16, 27.