Combined rolling-extrusion of various billets from the Al–Ce–La alloy for electrical wire production
Voroshilov D.S. Sidelnikov S.B. Bespalov V.M. Sokolov R.E. Bermeshev T.V. Berngardt V.A. Lezhnev S.N. Durnopyanov A.V. Kovaleva A.A. Konstantinov I.L. Novikova O.S. Motkov M.M.
April 2024Springer Science and Business Media Deutschland GmbH
International Journal of Advanced Manufacturing Technology
2024#131Issue 9-104699 - 4725 pp.
The rheological, mechanical, and electrical properties and structure of rods and wires made of aluminum alloy concentration of 1% REM (0.6% Ce and 0.4% La) are investigated and presented. The rods were produced by combined rolling-extrusion (CRE) from two different types of billets: casting into a mold 14×14 mm and into electromagnetic mold (EMM) Ø12.5 mm. A database of the DEFORM 3D complex was created for computer modeling of the CRE process. The tensile strength of rods Ø9 and 5 mm obtained using CRE method is 120–140 MPa and elongation to failure is 15–26% for billets from EMM. For billets 14×14 mm, the ultimate tensile strength is 112–125 MPa, which is comparatively lower than that of rods made from round billets (elongation to failure is 26–34%). The plastic properties of the final wire Ø2 mm from a round billet after EMM are higher than wire Ø2 mm from a billet obtained by casting into a mold 14×14 mm. Rods after CRE from both types of billets are characterized by fairly high ductility. To obtain Ø2-mm wire from rods, no intermediate annealing was required. The values of electrical resistance are taken from 0.02271 to 0.0301 Ω‧mm2/m for rods from 12.5-mm billets and from 0.02776 to 0.03413 Ω‧mm2/m for rods from billets 14×14 mm. The electrical resistance values for wire Ø2 mm from billets 14×14 mm are higher than for wire obtained from rods after EMM. Microstructure shows that the final wire after CRE from billet in EMM has a more extensive structure than after CRE from billets with dimensions of 14×14 mm.
Aluminum alloys , Combined rolling-extrusion , Electrical conductivity , Mechanical properties , Modeling , Rare-earth metals
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Siberian federal university, Krasnoyarsk, 660025, Russian Federation
LLC “RUSAL ETC”, Krasnoyarsk, 660111, Russian Federation
Rudny Industrial Institute, Rudny, 111500, Kazakhstan
LLC “RPC of Magnetic Hydrodynamics”, Krasnoyarsk, 660074, Russian Federation
Siberian federal university
LLC “RUSAL ETC”
Rudny Industrial Institute
LLC “RPC of Magnetic Hydrodynamics”
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