MIREA — Russian Technological University, Moscow, Russia
E. S. Kozik, Cand. Eng., Associate Prof., Dept. of Materials Engineering, e-mail: ele57670823@yandex.ru
A. N. Khrustalev, Junior Researcher, Lab. of Ceramic Materials and Technologies, e-mail: lywn@yandex.ru

Orenburg State University, Orenburg, Russia
E. V. Svidenko, Cand. Eng., Associate Prof., Dept. of Materials Science and Technology, e-mail: tzvetkova.katia2016@yandex.ru

Current trends in industrial and technological development dictate the need to create materials with unique and optimized properties for operation under high loads, aggressive environments and extreme temperatures. One of the most promising groups of such materials is powder materials, characterized by a high degree of control of structure and composition. They are used in various industries due to their high strength, lightness, resistance to wear and corrosion. However, the operational properties of powder materials are often limited by their initial characteristics. Various processing methods are widely used to enhance their functionality. A special place among them is occupied by chemical heat treatment (CTO), a technology that makes it possible to change the structure and composition of the surface of materials by saturating them with active elements under certain temperature and chemical conditions. CTO is used to improve the wear resistance, hardness, corrosion resistance and other properties of the surface layer, which is especially important for powder materials used in conditions of intense mechanical stress or aggressive environments. The technology makes it possible to create functional coatings and surface modifications, expanding the scope of application of powder materials in aviation, automotive, energy, medicine, oil and gas and other industries. The relevance of the research topic lies in the fact that, despite the widespread use of powder materials, their properties and behavior under the influence of various CTO modes have not been sufficiently studied. Existing research often focuses on traditional metals and alloys, while powder materials require a separate approach due to their microstructure, porosity, and sintering characteristics. The purpose of the work is to study the effect of various types of chemical and thermal treatment on the operational properties of powder materials.

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