| 摘要 |
FIELD: plastic metal working, possibly manufacture of intermediate blanks of titanium alloys by hot deforming. ^ SUBSTANCE: method comprises steps of deforming ingot at temperature in beta -range and combination type operations of deforming blank temperature of (alpha + beta) and beta-ranges; at final deforming stage at temperature in (alpha + beta) range realizing at least one forging operation after heating blank till temperature that is lower by 50 - 80°C than polymorphous conversion temperature of alloy; at least one time cooling blank in water; before deforming blank for final size, heating blank till temperature that is lower by 20 - 40°C than polymorphous conversion temperature for time period providing globule formation of alpha - phase; fixing formed structure by cooling in water; again heating blank till temperature that is lower by 20 - 40°C than polymorphous conversion temperature and finally deforming blank. ^ EFFECT: possibility for producing blank with globular-plate microstructure, lowered level of structural defects at ultrasonic flaw detection of turned blank. ^ 1 ex |
