FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, specifically to titanium-based alloys, and is intended for use in steam-turbine plants and heavy-duty welded structures operated at high temperature. Titanium-based alloy contains, wt%: aluminium 4.3-6.3; molybdenum 1.5-2.5; carbon 0.05-0.14; zirconium 0.2-1.0; oxygen 0.06-0.14; silicon 0.02-0.12; iron 0.05-0.25; niobium 0.03-1.20; hafnium 0.01-0.5; titanium - balance.
EFFECT: alloy has high creep strength at 500°C and preset residual deformation of 2/10 % while maintaining high mechanical properties and corrosion resistance of welded structures.
1 cl, 1 tbl
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|---|---|---|---|
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