jfet.13.2.13867 A Novel Self-Repaired Iron Based High Temperature Coating Alloy Elguja R. Kutelia Sayavur I. Bakhtiyarov Mikheil N. Okrosashvili Olga O. Tsurtsumia Akshin S. Bakhtiyarov Besik G. Eristavi Journal on Future Engineering and Technology 2230–7184 13 2 1 16 10.26634/jfet.13.2.13867 High Temperature Corrosion, Self-healing, TBC, Fe-Cr-Al-RE Alloy, Refractory Metals, Composite Materials, Microcrack, Oxidation 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 technique followed by high temperature (1200o 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. November 2017 - January 2018 Copyright © 2018 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=13867