FIELD: metallurgy.
SUBSTANCE: proposed method comprises primary fast heating, cold deformation, subsequent fast heating, another deformation cycle and heating, and final ageing. Optimisation of strength and plastic properties in both deformed and aged states is possible due to that primary fast heating to temperature higher than that of recrystallisation onset is performed by electric contact heating. Then, material is cooled (tempered) at cooling rate of 10-80°C/s. Subsequent cold drawing, intermitting with tempering, is performed with summed deformations between tempering making 25-49%. Final heating is performed to temperature below that of recrystallisation by 10-70°C. Thereafter, final drawing with deformation of 5-12% and ageing for 4-6 hours are performed.
EFFECT: higher operating properties of wire made thereby.
1 tbl, 3 ex
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| METHOD FOR PRODUCTION OF CALIBRATED STICK FROM BASED-MAGNESIUM-SILICIUM-BASED ALLOYS | 2003 |
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