Study mechanism formation a surface layer metal composite material based on Mo–Si–B system after high-temperature influence at different angles of attack

Lutsenko A.N., Efimochkin I.Yu., Moiseeva N.S.
UDC
669.018.95
DOI
10.18577/2307-6046-2023-0-1-84-96
Article PDF (Russian) (1.16 MB)
How to cite
Lutsenko A.N., Efimochkin I.Yu., Moiseeva N.S. Study mechanism formation a surface layer metal composite material based on Mo–Si–B system after high-temperature influence at different angles of attack // Proceedings of VIAM. 2023. No. 1. DOI: 10.18577/2307-6046-2023-0-1-84-96. URL: https://test.viam.ru/en/journal/2023/1/7
Keywords
metal composite material, molybdenum, high temperature heating, phase composition, surface layer
Abstract

The paper analyzes the changes phase composition of the surface layer metal composite material base on Mo–Si–B system, reinforced with dispersed particles Al2O3 oxide. The main stages formation phase composition surface layer with a thickness of 0–250 microns at an exposure temperature of 1300–2100 °C have been established by x-ray phase analysis. It is established that protective amorphous phase is formed at temperature of 1700 °C. At a heating temperature of 1900 °C and above, the glassy layer ablates, which leads to oxidation of the near-surface layers of the base material.

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