Abstract
A mechanism of electroplastic effect considered as well as possible areas of its technological application during rolling, drawing, stamping of thin sheets and other methods of metals forming.A conception justified that metal electroplastic deformation, based on electroplastic effect, can be applied at middle and final metallurgical stage. Electroplastic effect allows to decrease metal resistance to deformation by 25–30% and increase the ductility of a metal during its forming, to increase residual ductility till 30%. Due to increasing of axial texture perfection degree of wire during drawing technology with electroplastic effect application, a decrease of its electric resistance by 15% is reached. During the metal electroplastic deformation of stainless steels the austenite-martensitic phase γ→α transformation is practically completely suppressed, which makes unnecessary operations of money-and energy consuming austenizating annealing.Based on electroplastic effect about 45 mills and powerful metal-processing facilities, using metal electroplastic effect deformation created in different countries (mainly in Russia, South Korea, Italy, Great Britain and China). Different variants of effective energy-saving critical technologies are being developed by metal electroplastic effect deformation by rolling, drawing, stamping and flatting, as well as briquetting of metal wastes with current. A new equipment is created and existing equipment is modernized for application of metal еlectroplastic effect deformation technology.
Highlights
A conception justified that metal electroplastic deformation, based on electroplastic effect, can be applied at middle and final metallurgical stage
Electroplastic effect allows to decrease metal resistance to deformation by 25–30% and increase the ductility of a metal during its forming, to increase residual ductility till 30%
Влияние электронов на торможение дислокаций в кристаллах // Физика твердого тела
Summary
1. Скачкообразная деформация кристаллов цинка под влиянием импульсов тока; происходит увеличение пластической деформации металла до разрушения при азотной температуре. Действие “электронного ветра” на процесс перемещения дислокаций деформации металла может быть существенным при больших плотностях тока (Jm = 105–106 А/см[2]). В частности, что в рении в результате магнитного пробоя происходит образование открытых направлений и между бывшими до этого замкнутыми частями поверхности Ферми “монстром” и “сигарой” или “иглой”, что отмечается также для цинка и может быть причиной снижения ЭПЭ в ходе электропластической деформации. Также отметим одну деталь механизма передачи импульсов силы и энергии от фермиевских носителей тока на дислокации, подтверждающую определяющую роль удельной поверхности Ферми ∫dSF/V в величине ЭПЭ. Что пропускание импульсов тока в верхней недеформируемой части Б двойного образца вызывает скачки деформации в нижней деформируемой части А, по которой в это время не проходил ток. По величине ПЭ на первом месте стоит медь, на втором ― цинк и на третьем ― сталь
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