Physical and chemical interaction of aluminum with titanium and nickel for further use in parts of agricultural machinery
2021
Dostayeva, A., Karaganda Technical Univ. (Kazakhstan) | Toleuova, A., Karaganda Technical Univ. (Kazakhstan)
Aluminum-titanium alloys are widely used as structural materials due to their high thermal conductivity, ductility, corrosion resistance, and ductility. Alloying these aluminum-titanium alloys with molybdenum and nickel provides a formation of strong and high-melting intermetallic compounds. That way the volume fractions of the strengthening phases are obtained in the alloys. The restoration of worn-out elements of the auxiliary parts which supply agricultural enterprises is considered as a reserve in increasing technical readiness. However, the technological processes used today to restore elements do not always meet the innovative, current requirements. In the work, the alloying elements selected are elements, such as molybdenum and nickel. An analytical review has shown that the binary systems Al-Ti, Al-Ni, Ni-Ti have been studied sufficiently. The data of the state diagrams of the ternary Al-Ti-Ni systems are not contained in the literature. The construction of phase diagrams of ternary systems will be carried out using the Thermo-Calc software. In this regard, the use of aluminum-titanium alloys in agricultural machinery increases their wear resistance by 2...4 times. The phase diagrams of the Al-Ti-Ni system are constructed using the Thermo-Calc program. Also, the polythermal sections of the Al-Ti-Ni system are constructed. It is found that a eutectic compound is formed between intermetallides. Intermetallic compounds AlNi3 and AlTi3 are in equilibrium with aluminum. The study of equilibrium state diagrams of Al-Ti-Ni ternary systems is an important theoretical basis for the creation of alloys with specified properties. The formation of intermetallic compounds is observed from the calculations of Thermo-Calc program.
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