Evaluation of Mechanical Properties for Chromium Carbide Coatings at High Temperature

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High-temperature erosion and erosion-corrosion are significant problems for energy conversion systems in power plants. The source is high-temperature dry steam that contains iron oxide and fly ash particles. Compared with high-temperature alloys, ceramic coatings generally have higher resistance to high temperature corrosion and erosion. However, it would be very difficult to obtain mechanical properties for ceramic coating materials in a high temperature environment. With no experimental testing, therefore, the performance of ceramic coatings in an actual plant environment is not typically evaluated before field application. The aim of this paper is to discuss dynamic hardness and fracture toughness as mechanical properties of ceramic coating materials at high temperature, compared with those at room temperature. We chose three types of chromium carbide coating materials that were coated with atmospheric plasma spray (APS), vacuum plasma spray (VPS), and high-velocity oxygen fuel (HVOF) on SUS430 stainless steel.

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Edited by:

Toshio Maruyama, Masayuki Yoshiba, Kazuya Kurokawa, Yuuzou Kawahara and Nobuo Otsuka

Pages:

162-169

Citation:

Y. I. Oka and K. Goto, "Evaluation of Mechanical Properties for Chromium Carbide Coatings at High Temperature", Materials Science Forum, Vol. 696, pp. 162-169, 2011

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September 2011

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$38.00

[1] M. Takahashi, M. Tamura and K. Honda, Thermal stress analysis for ceramic thermal barrier coatings and inference of spalling mechanism for the coatings, Pre-Prints of the National Meeting of JWS, 61 (1997) 124-125.

[2] K. Kokini and B. E. Sheets, Thermal stresses under engine heat flux. Part 2: thin metallic films on ceramic coatings, Trans ASME J Energy Resour Technol, 114 (1992) 298-308.

DOI: https://doi.org/10.1115/1.2905957

[3] K. Hiihara, R. Morena and D. P. H. Hasselman, Evaluation of KIc of brittle solids by the indentation method with low crack-to-indent ratios, J. of Materials Science, Letters 1 (1982) 13-16.

DOI: https://doi.org/10.1007/bf00724706

[4] X. Li and B. Bhushan, Measurement of fracture toughness of ultra-thin amorphous carbon films, Thin Solid Films, 315 (1998) 214-221.

DOI: https://doi.org/10.1016/s0040-6090(97)00788-8

[5] J. Lesage and D. Chicot, Role of residual stresses on interface toughness of thermally sprayed coatings, Thin Solid Films, 415 (2002) 143-150.

DOI: https://doi.org/10.1016/s0040-6090(02)00488-1

[6] Y.I. Oka, Y. Mukai and T. Tsumura, Mechanical Properties and Adhesion of Oxide Films Examined by a Solid Particle Impact Method at High Temperature Corrosive Environments, Wear, 258 (2005) 92-99.

DOI: https://doi.org/10.1016/j.wear.2004.04.012

[7] Y.I. Oka, T. Yamabe and T. Tsumura, Exfoliation and Fracture Behavior of Oxide Films Formed on Titanium and Its Alloy in High Temperature Environments, Materials Science Forum, 522-523 (2006) 417-424.

DOI: https://doi.org/10.4028/www.scientific.net/msf.522-523.417

[8] Y.I. Oka, T. Yoshida, Y. Yamada, T. Yasui and S. Hata, Evaluation of erosion and fatigue resistance of ion plated chromium nitride applied to turbine blades, Wear, 263 (2007) 379–385.

DOI: https://doi.org/10.1016/j.wear.2007.01.047

[9] D. Tabor, The Hardness of Metals, Clarendon Press, Oxford (1951).

[10] I. M. Hutchings, "Material behaviour under high stress and ultrahigh loading rates, Ed. John Mescall and Volker Weiss, Proc. Sagamore Army Materials Research conference, 29, p.161 (1983).

DOI: https://doi.org/10.1007/978-1-4613-3787-4

[11] Y.I. Oka, M. Matsumura and T. Kawabata, Relationship between surface hardness and erosion damage caused by solid particle impact, Wear, 162-164 (1993) 688-695.

DOI: https://doi.org/10.1016/0043-1648(93)90067-v