| 摘要 |
FIELD: metallurgy.SUBSTANCE: method of heat treatment of large-size products from high-strength titanium alloy containing wt %: 4.0?6.3 of aluminium, 4.5?5.9 of vanadium, 4.5?5.9 of molybdenum, 2.0?3.6 of chrome, 0?5 of zirconium, 0?6 of stannum, 0?0.5 of silicon, titanium and inevitable impurity - the rest, includes cooling with V<3°C /min of single-phase ?-area up to the temperature T<370°C and the subsequent aging at the temperature T=370?600°C during 1?12 hours. After aging the additional heating and processing of alloy in the range T=T?Twithin 1?12 hours, cooling at the speed V>Vup to the temperature Twhich isn't higher than Ttemperature, and the subsequent repeated aging in the range of the temperatures Twithin 1?12 hours.EFFECT: increase of strength and impact viscosity.2 cl, 1 dwg, 1 tbl, 1 ex |
