Regularities of the formation of structure, phase composition and tribological properties of heat-resistant chromium-nickel alloys «Nikorin»
Keywords:
aluminum alloys, Al-Mg-Sc system, alloying, chrome, REM, deformation treatment, structure, structural strength, corrosion resistance, damage, vacuum magnetohydrodynamic mixer, continuous ingot casting machine, modification, heat-resistant corrosion-resistant nickel alloys, gas turbine engine blades, directional crystallization, composite castings, cast reinforced structures, iron-carbon alloys, gasification model casting, chromium-nickel alloys, austenite, hardness, wear rate, wear resistance index, deformable aluminum alloys, vacuum magnetohydrodynamic complex, heat-resistant alloy, gas turbine engine, turbine blade, continuously cast aluminum ingots, iron-carbon alloyscasting according to gasifying models, thermal destruction of polystyrene, physical and mechanical properties of cast structures, influence of pressure on metalAbstract
In this work, new solutions have been obtained for a scientific and practical problem, which consists in increasing the complex of tribological properties and heat resistance of chromium-nickel alloys for modern mechanical engineering. The composition of heat-resistant chromium-nickel alloys is investigated. The distribution of alloying elements between phases and structural components is studied, the dependence of the change in mechanical properties on the parameters of the structure and phase composition is established.
Calorimetric analysis of the alloys under study during heating/cooling is carried out. The crystallization/melting temperatures of the nickel-chromium alloy «Nikorin» were determined. The structure, phase composition, microhardness of the structural components of the heat-resistant chromium-nickel alloy «Nikorin» after quenching from various temperatures have been studied. The tribological properties of chromium-nickel alloys in the cast state are investigated.
STRUCTURAL MATERIALS: MANUFACTURE, PROPERTIES, CONDITIONS OF USE