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Year 2022 Volume 20, Issue 3 |
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Issues/2022/vol. 20 /Issue 3 |
M. I. Grechanyuk, V. G. Grechanyuk, A. M. Manulyk, I. M. Grechanyuk, A. V. Kozyrev, and V. I. Gots
Massive Dispersion-Strengthened Composition Materials with Metal Matrix Condensed from the Vapour Phase
0683–0692 (2022)
PACS numbers: 61.72.Ff, 62.23.Pq, 81.05.Ni, 81.10.Bk, 81.15.Gh, 81.40.Cd, 81.70.Bt
This article presents the results of a study of the condensed dispersion-reinforced materials (CDRM) obtained from the vapour phase. The mechanical properties of materials depending on their reinforcement are studied in systems based on metals and alloys, with reinforcing additives of oxide, carbide or boride. Mechanical properties are evaluated as a complex of tensile strength, deformation limit, and relative elongation. As a result, it is shown that the mechanical properties of materials obtained from the vapour phase depend on the following factors: type of matrix, type of dispersed particles, temperature and roughness of the substrate, purity of the initial materials, and the rate of their evaporation. As found, the achievement of high mechanical properties due to the formation of a specific structure can be realized by regulating the temperature of the substrate. A decrease in the temperature of the substrate during the fabrication of the dispersion-reinforced material leads to a coarsening in the structural grains. Outstanding properties are obtained in the Cu–1 wt.% Mo CDRM with coarseness of matrix grains of 1.45–3.25 μm and characteristic diameter of reinforcing particles of 12–25 nm. As shown by evaluating the interaction of the matrix and dispersed particles at the interface and using high-speed evaporation, it is easy to develop the new CDRM with predefined properties.
Key words: condensed dispersion-reinforced materials (CDRM), condensation, vapour phase, composition materials, metal matrix.
https://doi.org/10.15407/nnn.20.03.683
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