Electrostimulated deformation of metals and alloys, using groove or smooth rolling, requires that several important conditions are satisfied. (1) The deformation site must geometrically overlap with the flow of electr...Electrostimulated deformation of metals and alloys, using groove or smooth rolling, requires that several important conditions are satisfied. (1) The deformation site must geometrically overlap with the flow of electric current passing through a strip between the rolls; (2) The density of direct or alternating electric current supplied to deformation site must be sufficiently high (of an order of 104-106А/cm^2); (3) An efficient heat removal from the deformation site must be achieved. In general, the temperature of a strip must be within the range of 100-300℃. (4) The electric resistance at the roll-strip interface must be minimized. Our recent studies also indicate that the electrostimulated rolling in the shortcut regime is a further condition for obtaining high quality rolling of metals. In this regime, the rolls are placed in physical contact even in the absence of a strip that ensures an uninterrupted passage of electric current between the rolls.展开更多
The process of electroboosted rolling in grooves and calibres can be utilised as an effective way of obtaining of new materials with structure and properties, close to nanosizes. The features and technological capabil...The process of electroboosted rolling in grooves and calibres can be utilised as an effective way of obtaining of new materials with structure and properties, close to nanosizes. The features and technological capabilities of electroboosted rolling in grooves and calibres utilised for obtaining unique constructional(structural) and functional materials and hardware products from them. The cross-sectional(transversal) size of internal layers can be at the expense of repeated reduction of a package (packet) from the ordered threads or layers as metallic, and not of metallic materials.展开更多
文摘Electrostimulated deformation of metals and alloys, using groove or smooth rolling, requires that several important conditions are satisfied. (1) The deformation site must geometrically overlap with the flow of electric current passing through a strip between the rolls; (2) The density of direct or alternating electric current supplied to deformation site must be sufficiently high (of an order of 104-106А/cm^2); (3) An efficient heat removal from the deformation site must be achieved. In general, the temperature of a strip must be within the range of 100-300℃. (4) The electric resistance at the roll-strip interface must be minimized. Our recent studies also indicate that the electrostimulated rolling in the shortcut regime is a further condition for obtaining high quality rolling of metals. In this regime, the rolls are placed in physical contact even in the absence of a strip that ensures an uninterrupted passage of electric current between the rolls.
文摘The process of electroboosted rolling in grooves and calibres can be utilised as an effective way of obtaining of new materials with structure and properties, close to nanosizes. The features and technological capabilities of electroboosted rolling in grooves and calibres utilised for obtaining unique constructional(structural) and functional materials and hardware products from them. The cross-sectional(transversal) size of internal layers can be at the expense of repeated reduction of a package (packet) from the ordered threads or layers as metallic, and not of metallic materials.
