FIELD: performing operations.
SUBSTANCE: invention relates to production of high-strength round bars with bimodal gradient microstructure from Co-Cr-Mo alloys. Billet is heated to temperature of 1180-1200 °C. Radial-shear rolling is performed in 4-9 passes with average drawing ratio per pass of 1.2-1.5 and total drawing factor of not less than 3.0 with intermediate heating between passes. Quenching in water is carried out after the last pass from the temperature of the end of rolling. Aging is carried out at temperature of 840-880 °C for 90-150 minutes.
EFFECT: as a result, long bars of round cross-section are obtained from Co-Cr-Mo alloy with gradient bimodal microstructure.
3 cl, 8 dwg, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF COMBINED THERMOMECHANICAL TREATMENT OF ALLOY OF TITANIUM-ZIRCONIUM-NIOBIUM SYSTEM FOR PRODUCTION OF LONG ROD SEMI-FINISHED PRODUCTS | 2024 |
|
RU2840357C1 |
| METHOD TO PRODUCE SUB MICRO-CRYSTALLINE STRUCTURE IN UNALLOYED TITANIUM | 2008 |
|
RU2389568C1 |
| METHOD FOR PRODUCING TITANIUM ALLOY ROUND RODS (OPTIONS) | 2021 |
|
RU2756077C1 |
| METHOD OF PRODUCING NANOSTRUCTURED RODS OF ROUND SECTION FROM TITANIUM ALLOY VT22 | 2015 |
|
RU2604075C1 |
| METHOD OF FORGING WORKPIECES WITH ULTRA-FINE-GRAINED STRUCTURE OF TWO-PHASE TITANIUM ALLOYS | 2019 |
|
RU2707006C1 |
| METHOD OF THERMO-MECHANICAL TREATMENT OF TWO-PHASE TITANIUM ALLOYS | 2005 |
|
RU2285740C1 |
| METHOD FOR PRODUCTION OF BARS WITH FINE CRYSTALLINE GLOBULAR STRUCTURE IN (α- AND (α+β)-TITANIUM ALLLOYS | 2009 |
|
RU2390395C1 |
| STEEL FOR CHAINS OF MINING EQUIPMENT AND METHOD FOR ITS MANUFACTURE | 2021 |
|
RU2801655C1 |
| ANTIRUST ALLOY BASED ON Fe-Cr-Ni, ARTICLE THEREFROM AND METHOD OF PRODUCING SAID ARTICLE | 2010 |
|
RU2441089C1 |
| METHOD OF PRODUCING CYLINDRICAL WORKPIECES FROM MEDIUM-ENTROPY ALLOY FeMnCoCrC | 2024 |
|
RU2833636C1 |
