FIELD: metallurgy.
SUBSTANCE: treatment method of vanadium-based alloys of V-4Ti-4Cr system is proposed. Method involves homogenisation, thermal mechanical treatment and final stabilising annealing. After homogenisation is completed, ingots are heated to 850-1000°C with exposure at this temperature during 1.5-2 hours; extrusion with elongation ratio of 2-5 with further annealing at temperature exceeding the solubility temperature of secondary phases in vacuum of 10-4 Pa. First, thermal mechanical treatment is performed by means of deformation with deformation degree of 30% at room temperature with further annealing at temperature of 500-600°C, and then, by means of multiple pressing with change of deformation axis along three axes with deformation value of not less than 30% per pass, and final stabilising annealing is performed at 800-900°C.
EFFECT: improving high-temperature strength of vanadium-based alloys.
1 dwg, 1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF THERMOMECHANICAL TREATMENT OF ALLOYS ON BASIS OF VANADIUM | 2007 |
|
RU2360012C1 |
| METHOD OF CHEMICAL-THERMAL TREATMENT OF VANADIUM ALLOYS ALLOYED WITH CHROME AND TITANIUM | 2011 |
|
RU2463377C1 |
| METHOD OF MANUFACTURING VANADIUM ALLOYS BLANKS | 2015 |
|
RU2623848C2 |
| COMBINED METHOD OF PROCESSING VANADIUM ALLOYS | 2015 |
|
RU2605015C1 |
| METHOD OF PROCESSING VANADIUM ALLOY BILLETS | 2016 |
|
RU2644832C1 |
| METHOD FOR PROCESSING VANADIUM ALLOYS | 2020 |
|
RU2751208C1 |
| ULTRA-FINE GRAIN TWO-PHASE ALPHA-BETA TITANIUM ALLOY WITH IMPROVED LEVEL OF MECHANICAL PROPERTIES, AND METHOD FOR ITS OBTAINMENT | 2012 |
|
RU2490356C1 |
| NANOSTRUCTURED TITANIUM-NICKEL ALLOY WITH SHAPE MEMORY EFFECT AND METHOD OF MAKING BAR THEREOF | 2012 |
|
RU2503733C1 |
| METHOD FOR OBTAINING MATERIAL FOR HIGH-STRENGTH FASTENERS | 2022 |
|
RU2793901C1 |
| METHOD OF PRODUCING THREE-LAYER MATERIAL STEEL X17H2 - V-4.9Ti-4.8Cr - STEEL X17H2 | 2018 |
|
RU2704945C1 |
