The research of the cold rolling modes for plates of aluminum alloy sparingly doped with scandium

Описание

Тип публикации: статья из журнала

Год издания: 2019

Идентификатор DOI: 10.17580/nfm.2019.02.08

Ключевые слова: aluminum alloys, sparing doping by scandium, hot-rolled semifinished material, plates, cold rolling, mechanical properties, computer simulation

Аннотация: The study of the cold rolling modes of the plates of aluminum alloy sparingly doped with scandium was performed. As a blank for rolling, a 60 mm thick semifinished rolled stock, obtained at one of the Russian metallurgical enterprises by hot rolling of a 1580 alloy ingot was used. At the first stage of the work, an experimental stuПоказать полностьюdies of cold rolling of the plates with different degrees of deformation in the laboratory conditions on a rolling mill DUO 330 with a body of roll of 520 mm long has been implemented to determine the critical value of overall reduction, causing the destruction of samples, which have showed that this value during cold rolling of the hotrolled semifinished material corresponds to 21-22%. At this degree of deformation, the alloy has high strength properties with a sufficiently high plasticity. Further increase in the deformation degree does not lead to a significant growth of strength properties, but can favor to the formation of cracks along the edge of the rolled stock. The hot-rolled semifinished material deformability has been tested in the range of the cold deformation degrees from 10 to 30% using the reduction modes obtained in laboratory conditions at the second stage of the work in order to test the technology of rolling the plates on an industrial mill with a body of roll of 2800 mm long and a billet width of 2000 mm. By the results of mechanical properties testing of the plates rolled with different deformation degrees, it is shown that cold rolling of a hot-rolled billet with deformation degree of 21-22% provides the following mechanical properties of the plates: sigma(t) = 420 MPa; sigma(0.2) = 380 MPa; delta = 8%, and further increase of the cold deformation degree leads to an insignificant growth of strength properties (about 10 MPa).

Ссылки на полный текст

Издание

Журнал: NON-FERROUS METALS

Выпуск журнала: Is. 2

Номера страниц: 48-52

ISSN журнала: 20720807

Место издания: MOSCOW

Издатель: ORE & METALS PUBLISHERS

Авторы

  • Baranov V.N. (Siberian Fed Univ, Sch Nonferrous Met & Mat Sci, Krasnoyarsk, Russia)
  • Zenkin E.Yu (RUSAL Bratsk Aluminium Smelter JSC, Bratsk, RussiaArticle)
  • Konstantinov I.L. (Siberian Fed Univ, Dept Met Forming, Krasnoyarsk, Russia)
  • Sidelnikov S.B. (Siberian Fed Univ, Dept Met Forming, Krasnoyarsk, Russia)

Вхождение в базы данных