¹Zokirov Furkatshoh Shakhrierovich, ¹Ganiev Izatullo Navruzovich, ²Rakhmatulloeva Gulnoza Mukhrievna, ¹Mahmadizoda Murodali Mahmadi

¹Tajik Technical University named after acad. M.S. Osimi

²Center for Research of Innovative Technologies of the National Academy of Sciences of Tajikistan

Annotation: 

Currently, in many fields of technology, there is a growing interest in heat-resistant materials based on aluminum alloys, which are used in electrical engineering, as well as in the manufacture of heat-resistant wires for high-voltage power lines. The paper presents the results of a thermogravimetric study of the interaction of an aluminum conductor alloy AlTi0.1 containing potassium with atmospheric oxygen in the range of 723-823 K in the solid state. Kinetic parameters of the oxidation process are determined. It has been shown that potassium supplements up to 0.5 wt.% increase the rate of oxidation of the aluminum conductor alloy AlTi0.1, which is accompanied by a decrease in the apparent activation energy of the oxidation process from 140.00 to 117.11 kJ/mol. The oxidation process of alloys obeys a hyperbolic equation.

Keywords: aluminum alloy AlTi0.1, potassium, thermogravimetric method, oxidation kinetics, true oxidation rate, oxidation activation energy.