FIELD: metallurgy.
SUBSTANCE: equichannel angular pressing of a cylindrical workpiece is performed. Ultra-fine structure with the grain size of 200-300 mcm is formed in the workpiece metal. Then the workpiece is cut into disks with each of them being subject to intensive plastic deformation by torsion with the help of two rotating strikers. Deformation of torsion is carried out under the room temperature and the pressure of 4-6 GPa with the number of strikers' revolutions n≤2. Therewith the homogeneous nanocrystalline structure with the grain size of ≤100 mcm is formed.
EFFECT: improved physical and mechanical properties of the material being processed.
2 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| Cu-Cr SYSTEM ULTRAFINE COPPER ALLOY AND METHOD OF ITS PRODUCTION | 2011 |
|
RU2484175C1 |
| ULTRA FINE-GRAINED ALUMINIUM ALLOYS FOR ELECTRIC HARDWARE AND METHOD OF THEIR PRODUCTS (VERSIONS) | 2011 |
|
RU2478136C2 |
| ULTRA-FINE GRAIN TWO-PHASE ALPHA-BETA TITANIUM ALLOY WITH IMPROVED LEVEL OF MECHANICAL PROPERTIES, AND METHOD FOR ITS OBTAINMENT | 2012 |
|
RU2490356C1 |
| CONDUCTIVE EXTRA LOW INTERSTITIAL ALUMINIUM ALLOY AND METHOD OF ITS PRODUCTION | 2015 |
|
RU2616316C1 |
| METHOD FOR HYBRID TREATMENT OF MAGNESIUM ALLOYS | 2019 |
|
RU2716612C1 |
| NANO-STRUCTURAL TECHNICALLY PURE TITANIUM FOR BIO-MEDICINE AND METHOD OF PRODUCING WIRE OUT OF IT | 2008 |
|
RU2383654C1 |
| ULTRA-FINE ALUMINUM ALLOYS FOR HIGH-STRENGTH ARTICLES MADE UNDER SUPERPLASTICITY CONDITIONS, AND A METHOD OF PRODUCING ARTICLES | 2020 |
|
RU2739926C1 |
| METHOD FOR COMBINED PROCESSING OF TITANIUM FOR BIOMEDICAL APPLICATION | 2023 |
|
RU2823221C1 |
| HEAT-RESISTANT CONDUCTIVE ULTRAFINE-GRAINED ALUMINUM ALLOY AND METHOD FOR PRODUCTION THEREOF | 2017 |
|
RU2667271C1 |
| METHOD OF INTENSIVE PLASTIC DEFORMATION BY TORSION UNDER HIGH CYCLIC PRESSURE | 2013 |
|
RU2547984C1 |
