MODELING OF STRUCTURE FORMATION PROCESS IN INTERMETALLIC NiAl ALLOYS DURING THERMOCHEMICAL PRESSING

Автор(и)

  • Борис Петрович Середа Дніпровський державний технічний університет, Україна
  • Юрій Олександрович Бєлоконь Запорожский национальный университет, Україна
  • Дмитро Борисович Середа Дніпровський державний технічний університет, Україна

DOI:

https://doi.org/10.31319/2519-8106.1(42)2020.206936

Ключові слова:

mathematical model, thermochemical pressing, intermetallic alloys, structure, grain size

Анотація

Mathematical model aimed at obtaining NiAl alloys with a given structure and properties is proposed and implemented, based on the use of data on the features of the physical modeling of the thermochemical pressing process. For a mathematical description of the process of extrusion of a high-temperature synthesis product, it is necessary to determine a system of equations that takes into account the distribution of the thermo-kinetic and rheological properties of the synthesis product in a mold and caliber. High-temperature synthesis of intermetallic compound NiAl in a powder mixture of pure elements in the conditions of thermochemical pressing allows to obtain an intermetallic alloy with an average grain size of ~ 40—50 microns.

Посилання

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2020-06-11

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