A Novel Self-Repaired Iron Based High Temperature Coating Alloy

Elguja R. Kutelia*, Sayavur Bakhtiyarov**, Mikheil N. Okrosashvili***, Olga O. Tsurtsumia****, Akshin S. Bakhtiyarov*****, Besik G. Eristavi******
* Professor, Department of Engineering Physics, Georgian Technical University, Tbilisi, Georgia.
** Professor, New Mexico Institute of Mining and Technology, USA.
*** Chair, Metal Process Engineering and Material Science Laboratory, Georgian Technical University, Tbilisi, Georgia.
****,****** Senior Scientific Researcher, Republic Center for Structure Research of Georgian Technical University, Tbilisi, Georgia
***** IT Specialist, US Social Security Administration, USA.
Periodicity:November - January'2018
DOI : https://doi.org/10.26634/jfet.13.2.13867


Self-healing capability of newly developed Fe45Cr4Al1Ni03La refractory alloy has been investigated in this study. During the tests as substrates, the authors used both monocrystals (Nb and Mo) and polycrystalline (low alloyed Cr) samples. The selected substrates were coated with Fe45Cr4Al1Ni03La refractory alloy using the electron-beam vacuum evaporation o technique followed by high temperature (1200 C) treatment. The structural properties of the Fe45Cr4Al1Ni03La composition was studied using various techniques, such as SEM, WDS, AES, and LM. The results of the experimental studies demonstrated that the Fe45Cr4Al1Ni03La coating layer on the selected substrate surfaces at high temperatures has an ability to heal the micro cracks created as a result of mechanical and thermal damages. It is shown that the Fe45Cr4Al1Ni03La coating composite exhibits high adhesion with all selected substrates, and consequently, a high protective capability against both corrosion and wear at high temperatures. The newly developed Fe45Cr4Al1Ni03La composition is considered as a breakthrough engineered material for commercial applications at high temperatures.


High Temperature Corrosion, Self-healing, TBC, Fe-Cr-Al-RE Alloy, Refractory Metals, Composite Materials, Microcrack, Oxidation

How to Cite this Article?

Kutelia, E. R. , Bakhtiyarov , S. I. , Okrosashvili, M. N. , Tsurtsumia, O.O., Bakhtiyarov , A. S., and Eristavi, B. G. (2018). A Novel Self-Repaired Iron Based High Temperature Coating Alloy. i-manager’s Journal on Future Engineering and Technology, 13(2), 1-16. https://doi.org/10.26634/jfet.13.2.13867


[1]. Birks, N., Meier, G. H., & Pettit, F. S. (2006). Introduction to the High Temperature Oxidation of Metals. Cambridge University Press.
[2]. Bouaziz, O., Brechet, Y., & Embury, J. D. (2008). Heterogeneous and architectured materials: A possible strategy for design of structural materials. Advanced Engineering Materials, 10(1-2), 24-36.
[3]. Cao, X. Q., Vassen, R., & Stoever, D. (2004). Ceramic materials for thermal barrier coatings. Journal of the European Ceramic Society, 24(1), 1-10.
[4]. Cockeram, B. V., Wang, G., & Rapp, R. A. (1995). Growth kinetics and pesting resistance of MoSi and 2 germanium-doped MoSi diffusion coatings grown by the 2 pack cementation method. Materials and Corrosion, 46(4), 207-217.
[5]. Cockeram, B. V., Wang, G., & Rapp, R. A. (1996). Preventing the accelerated low-temperature oxidation of MoSi (pesting) by the application of superficial alkali-salt 2 layers. Oxidation of Metals, 45(1-2), 77-108.
[6]. Evans, A. G., Mumm, D. R., Hutchinson, J. W., Meier, G. H., & Pettit, F. S. (2001). Mechanisms controlling the durability of thermal barrier coatings. Progress in Materials Science, 46(5), 505-553.
[7]. Fournier, D. (1995). Acquis, Besoins, Espoirs. Colloque National Superalliages Monocristallins, Toulouse.
[8]. Kim, G. M., Yanar, N. M., Hewitt, E. N., Pettit, F. S., & Meier, G. H. (2002). The effect of the type of thermal exposure on the durability of thermal barrier coatings. Scripta Materialia, 46(7), 489-495.
[9]. Kutelia, E. R., Tsurtsumia, O. O., Eristavi, B. G., Adanir, H., & Bakhtiyarov, S. I. (2006a). Structure and Elemental Distribution in Beilby Layer on the Surface of Fe-Cr-Al-La Alloy. i-manager's Journal on Future Engineering and Technology, 1(4), 61-71
[10]. Kutelia, E. R., Tsurtsumia, O. O., Mikadze, O. I., Demirkiran, K., & Bulia, P. B. (2006b). The kinetic peculiarities of the high temperature oxidation of Fe-44% Cr-4% Al-1% Ni-0.3% La alloy. Georgian Engineering News, 3, 52-56.
[11]. Kutelia, E. R., Tsurtsumia, O., & Bakhtiyarov, S. I. (2007). Investigation of Beilby Layer and its role in the formation of functional surfaces on Fe-Cr-Al-La alloys. Proceedings of the International Conference BALTTRIB 2007 (pp. 134-139).
[12]. Kutelia, E., Tsurtsumia, O., Eristavi, B., Mikadze, O., & Bulia, B. (2005). Auger-Spectroscopic and SEM Investigation of Scale Formation at High Temperature Oxidation of Fe-Cr-Al-RE Alloy with High Chromium (> 40%) Content. Georgian Engineering News, 1, 19-25.
[13]. Mann, S. (2001). Biomineralization: Principles and Concepts in Bioinorganic Materials Chemistry (Vol. 5). Oxford University Press
[14]. Miller, R. A. (1984). Oxidation-Based Model for Thermal Barrier Coating Life. Journal of the American Ceramic Society, 67(8), 517-521.
[15]. Mueller, A., Wang, G., Rapp, R. A., & Courtright, E. L. (1992). Deposition and Cyclic Oxidation Behavior of a Protective (Mo, W) (Si, Ge) 2 Coating on Nb-Base Alloys. Journal of the Electrochemical Society, 139(5), 1266- 1275.
[16]. Okrosashvili, M. N., Tsurtsumia, O. O., Bulia, B. O., Eristavi, B. G., Kutelia, E. R., Bakhtiyarov, S. I. et al. (2009, January). Development of High-Temperature Corrosion and Creep Resistant Nb, Mo, and Cr Based Compositions with Protective Self-Healing Coating of Fe-45% Cr-4% Al- 1% Ni-0.3% La Alloy. In CORROSION 2009. NACE International.
[17]. Padture, N. P., Gell, M., & Jordan, E. H. (2002). Thermal barrier coatings for gas-turbine engine applications. Science, 296(5566), 280-284.
[18]. Stiger, M. J., Yanar, N. M., Topping, M. G., Pettit, F. S., & Meier, G. H. (1999). Thermal barrier coatings for the 21st century. Zeitschrift fur Metallkunde, 90(12), 1069-1078.
[19]. Tsurtsumia, O., Kutelia, E. R., & Bakhtiyarov, S. I. (2008a, October). On the role of entropy excited surface layers in the formation of high temperature corrosion resistant barrier oxide scale on Fe-Cr-Al-La alloy. In th Proceedings of the 17 International Corrosion Congress organized by NACE and ICC.
[20]. Tsurtsumia, O., Kutelia, E., Bulia, B., & Mikadze, O. (2008b). Investigation of the development processes of self-organizing, protective oxide scales and wear resistant surface layers on the Fe-44% Cr-1% Ni-4% Al-0.3% La alloy. In Materials Science Forum (Vol. 595, pp. 833-840). Trans Tech Publications.
[21]. Tsurtsumia, O., Kutelia, E., Mikadze, O., & Bulia, B. (2005). Surface Finishing Influence on the Scale Formation at High Temperature Oxidation of Fe-Cr-Al-RE Alloys with High Chromium Content. In Proceedings of Congress EuroCorr, (pp. 5-8).
[22]. Vincent, J. F. (2012). Structural Biomaterials. Princeton University Press.

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