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- Title
ВПЛИВ ТЕРМІЧНОЇ ОБРОБКИ НА СТРУКТУРУ І ВЛАСТИВОСТІ АЛЮМІНІДУ ТИТАНУ Ti–28Al–7Nb–2Mo–2Cr ТА ЙОГО ЗВАРНИХ З’ЄДНАНЬ.
- Authors
Ахонін, С. В.; Білоус, В. Ю.; Северин, А. Ю.; Селін, Р. В.; Петриченко, І. К.
- Abstract
The influence of furnace annealing on the structure of cast metal in 200 mm ingots from intermetallic titanium alloy Ti–28Al–7Nb–2Mo–2Cr produced by electron beam melting and of its welded joints produced by the method of electron beam welding was determined. It is established than the metal of 200 mm Ti–28Al–7Nb–2Cr–2Mo ingots based on titanium aluminide is readily welded under the conditions of application of such technological measures as preheating and local heat treatment. It is shown that annealing at the temperature of 1260 °C for 10 h led to formation of a uniform microstructure in the base metal, HAZ and weld metal, decomposition of the duplex structure and absence of regions with a two-phase (γ+α2)-lamel structure. Room temperature strength of welded joints after annealing is equal to 746 MPa or 98 % of base metal strength.
- Publication
Electrometallurgy Today / Sovremennaya Elektrometallurgiya, 2024, Issue 2, p46
- ISSN
0233-7681
- Publication type
Article
- DOI
10.37434/sem2024.02.07