Evaluation of the Heat Resistance of the Fe-Cr-Al System Coatings

Abstract:

The influence of the chemical composition of aluminide coatings of the Fe-Cr-Al system on their heat resistance at 1100 °C was investigated. It is shown that the lowest oxidation rate is possessed by the coating obtained by aluminizing the Cr15Al5 alloy in the silumin melt, for which the depth of corrosion penetration after 500 h at 1100 °C did not exceed 2.5 μm. The depth of corrosion penetration after 500 h at 1100 °C in coatings with a higher chromium content (23 at.%) reaches 8.9 μm. A decrease in the content of chromium (up to 5 at.%) or aluminum (up to 10 at.%) in the surface layer is accompanied by a critical increase in the corrosion rate. The longest time of retention of heat-resistant properties at 1100 °C is possessed by the coating obtained by aluminizing the Cr23Al5 alloy in an aluminum melt.

• Periodical: Defect and Diffusion Forum (Volume 410)
• Pages: 525-530
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.410.525
• Online since: August 2021
• Authors: Vitaliy P. Kulevich*, Oleg V. Slautin, Valentin O. Kharlamov
• Keywords: Aluminizing, Coating, Heat Resistance, High-Temperature Heating, Iron Aluminides, X-Ray Diffraction

References

[1] Z.D. Xiang, P.K. Datta, Effects of pack composition on the formation of aluminide coatings on alloy steels at 650 C, Journal of Materials Science. 40(8) (2005) 1959-1966.

DOI: 10.1007/s10853-005-1217-3

[2] X. He, Y. Li, L. Wang, Y. Sun, S. Zhang, High emissivity coatings for high temperature application: progress and prospect, Thin Solid Films. 517(17) (2009) 5120-5129.

DOI: 10.1016/j.tsf.2009.03.175

[3] E.J. Opila, Volatility of common protective oxides in high-temperature water vapor: current understanding and unanswered questions, In Materials Science Forum. 461 (2004) 765-774.

DOI: 10.4028/www.scientific.net/msf.461-464.765

[4] G.Y. Lai, High-Temperature Corrosion and Materials Applications, ASM International, (2007).

[5] A.B. Kanthal, Handbook–Heating Alloys for Electric Household Appliances. Box 502, SE-73427 Hallstahammar, Sweden, (2001).

[6] Z.G. Zhang, F. Gesmundo, P.Y. Hou, Y. Niu, Criteria for the formation of protective Al2O3 scales on Fe–Al and Fe–Cr–Al alloys, Corrosion Science. 48(3) (2006) 741-765.

DOI: 10.1016/j.corsci.2005.01.012

[7] M.H. Heinonen, K. Kokko, M.P.J. Punkkinen, E. Nurmi, J. Kollár, L. Vitos, Initial oxidation of Fe–Al and Fe–Cr–Al alloys: Cr as an alumina booster, Oxidation of Metals. 76(3-4) (2011) 331.

DOI: 10.1007/s11085-011-9258-2

[8] K.G. Field, M.A. Snead, Y. Yamamoto, K.A. Terrani, Handbook on the Material Properties of FeCrAl Alloys for Nuclear Power Production Applications, Nuclear Technology Research and Development, (2017).

DOI: 10.2172/1400207

[9] E. Airiskallio, E. Nurmi, M.H. Heinonen, I.J. Väyrynen, K. Kokko, M. Ropo, L. Vitos, High temperature oxidation of Fe–Al and Fe–Cr–Al alloys: The role of Cr as a chemically active element, Corrosion Science. 52(10) (2010) 3394-3404.

DOI: 10.1016/j.corsci.2010.06.019

[10] G.H. Awan, F. Ul Hasan, The morphology of coating/substrate interface in hot-dip-aluminized steels, Materials Science and Engineering: A. 472(1-2) (2008) 157-165.

DOI: 10.1016/j.msea.2007.03.013

[11] C.J. Wang, S.M. Chen, The high-temperature oxidation behavior of hot-dipping Al–Si coating on low carbon steel, Surface and Coatings Technology. 200(22-23) (2006) 6601-6605.

DOI: 10.1016/j.surfcoat.2005.11.031

[12] V.G. Shmorgun, A.I. Bogdanov, O.V. Slautin, V.P. Kulevich, Aluminizing of the Cr15Al5 alloy surface by hot-dipping in the melt, IOP Conference Series: Materials Science and Engineering. 537(2) (2019) 022069.

DOI: 10.1088/1757-899x/537/2/022069

[13] Russian State Standard 12766.1-90, Wire of High Electric Resistance Precision Alloys. Specifications, Standartinform, Moscow, (1996).

[14] J. Engkvist, U. Bexell, M. Grehk, M. Olsson, High temperature oxidation of FeCrAl‐alloys–influence of Al‐concentration on oxide layer characteristics, Materials and Corrosion. 60(11) (2009) 876-881.

DOI: 10.1002/maco.200805186

[15] R. Prescott, M.J. Graham, The oxidation of iron-aluminum alloys, Oxidation of Metals. 38(1-2) (1992) 73-87.

DOI: 10.1007/bf00665045

[16] V.G. Shmorgun, O.V. Slautin, D.V. Pronichev, V.P. Kulevich, Study of high-temperature heating effect on transformation of structure and phase composition of coatings of Al-Fe system, IOP Conference Series: Earth and Environmental Science. 87(9) (2017) 092025.

DOI: 10.1088/1755-1315/87/9/092025

[17] V.G. Shmorgun, A.I. Bogdanov, V.P. Kulevich, V.O. Kharlamov, The influence of the chemical composition of the Fe-Cr-Al system coatings on the oxide films phase composition, IOP Conference Series: Materials Science and Engineering. 862(2) (2020) 022059.

DOI: 10.1088/1757-899x/862/2/022059

[18] S. Yoneda, S. Hayashi, I. Saeki, S. Ukai, The Effect of Cr on the Lifetime of Al-Rich Amorphous Oxide Layer Formed on Fe–Cr–Al Alloys at 650° C, Oxidation of Metals. 88(5-6) (2017) 669-686.

DOI: 10.1007/s11085-017-9761-1

[19] S. Yoneda, S. Hayashi, S. Ukai, The transition from transient oxide to protective Al 2 O 3 scale on Fe–Cr–Al alloys during heating to 1000° C, Oxidation of Metals. 89(1-2) (2018) 81-97.

DOI: 10.1007/s11085-017-9778-5

[20] W.J. Cheng, C.J. Wang, Effect of chromium on the formation of intermetallic phases in hot-dipped aluminide Cr–Mo steels, Applied Surface Science. 277 (2013) 139-145.

DOI: 10.1016/j.apsusc.2013.04.015