Effect of Low Temperature Heat Treatment for R512E Coated C-103 Nb Alloy

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The article aims to investigate the feasibility of oxidation protection imparted to C-103 Nb-based alloy by fused slurry silicide coating of R512E (60Si20Fe20Cr) carried out at lower temperature (1200 °C) for higher dwell time i.e. 12 hours. The findings reveal that the coating treated can impart sufficient oxidation resistance the alloy, which may withstand the desired application conditions wherein oxidation protection for smaller time period is needed. Moreover, this treatment is not found to deteriorate other mechanical properties of the alloy in 'As coated' condition.

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February 2021

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[1] A. Sahai, Modeling of High Enthalpy Flows for Hypersonic Re-entry and Ground-based Arc-jet Testing, University of Illinois at Urbana-Champaign, (2015).

Google Scholar

[2] Y. Choi, J. Yoon, G. Kim, W. Yoon, J. Doh, High temperature isothermal oxidation behavior of NbSi 2 coating at 1000 – 1450 ° C, Corr. Sci. 103 (2017) 0–1.

DOI: 10.1016/j.corsci.2017.10.002

Google Scholar

[3] B. Vishwanadh, R.H. Naina, S. Majumdar, R. Tewari, G.K. Dey, A study on the oxidation behavior of Nb alloy (Nb-1 pct Zr-0.1 pct C) and silicide-coated Nb alloys, Metall. Mater. Trans. A Phys. Metall. Mater. Sci. 44 (2013) 2258–2269.

DOI: 10.1007/s11661-012-1554-1

Google Scholar

[4] M. Sankar, V. V. Satya Prasad, R.G. Baligidad, M.Z. Alam, D.K. Das, A.A. Gokhale, Microstructure, oxidation resistance and tensile properties of silicide coated Nb-alloy C-103, Mater. Sci. Eng. A. 645 (2015) 339–346.

DOI: 10.1016/j.msea.2015.07.063

Google Scholar

[5] M.K. Kumawat, D.K. Das, Effect of cyclic oxidation on the tensile behavior of a Fe-Cr-Si coated Nb- base alloy, 131 (2018) 174–186.

DOI: 10.1016/j.corsci.2017.11.023

Google Scholar

[6] I. Machlin, Refractory Metal Alloys Metallurgy and Technology, Symposium Proceedings on Metallurgy and Technology of Refractory Metals, Washington D.C., April 25–26, (1968).

DOI: 10.1007/978-1-4684-9120-3

Google Scholar

[7] J. He, B. Zhang, K. Zheng, J. Feng, G. Chen, Surface & Coatings Technology Morphology of sintered silicide coatings remelted by high frequency electron beam, Surf. Coat. Technol. 209 (2012) 52–57.

DOI: 10.1016/j.surfcoat.2012.08.027

Google Scholar

[8] B. Fitzgerald, Fused Slurry Siliclde Coatings for Columbium Alloy Reentry Heat Shields Volume II Experimental and Coating Process Details, NASA Report,(1973).

Google Scholar

[9] S. Knittel, S. Mathieu, L. Portebois, S. Drawin, M. Vilasi, Development of silicide coatings to ensure the protection of Nb and silicide composites against high temperature oxidation, Surf. Coatings Technol. 235 (2013) 401–406.

DOI: 10.1016/j.surfcoat.2013.07.053

Google Scholar

[10] J. Hebda, Niobium alloys and High Temperature Applications, Proc. Int. Symp. Niobium.(2001)243–259 http://www.cbmm.com.br/portug/sources/techlib/science_techno/table_content/sub_3/images/pdfs/016.pdf.

Google Scholar

[11] B.P. Bewlay, M.N. Azer, L. Cretegny, A.M. Ritter, C.D. Young, Niobium Silicide-based Turbine Components, and Related Methods for Laser Deposition, US 2007/0003416 A1, (2007).

Google Scholar

[12] M.D. Novak, C.G. Levi, Oxidation and Volatilization of Silicide Coatings for Refractory Niobium Alloys, in: Proc. IMECE2007 2007 ASME Int. Mech. Eng. Congr.Expo., ASME, (2007).

DOI: 10.1115/imece2007-42908

Google Scholar

[13] Y. Qiao, M. Li, Surface & Coatings Technology Development of silicide coatings over Nb – NbCr 2 alloy and their oxidation behavior at 1250 ° C, Surf. Coat. Technol. 258 (2014) 921–930.

DOI: 10.1016/j.surfcoat.2014.07.058

Google Scholar

[14] Y. Qin, D. Zhang, W. Lu, W. Pan, A new high-temperature, oxidation-resistant in situ TiB and TiC reinforced Ti6242 alloy, J. All. Comp. 455 (2008) 369–375.

DOI: 10.1016/j.jallcom.2007.01.136

Google Scholar

[15] R.A. Perkins, Development of a fused slurry silicide coating for the protection of tantalum alloys, J. Less Common Met. 37 (1974) 361–378.

DOI: 10.1016/0022-5088(74)90028-9

Google Scholar