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<p>The article shows the influence of the complex composition of the aluminum alloy of the Al-REM-Zr system. As well as rational parameters of combined processing by the methods of ingotless rolling-extrusion (IRE), step annealing and drawing for the manufacture of conductive wire with an improved combination of heat resistance, strength, ductility and electrical conductivity. By computer modeling of the new IRE process for rods in the Deform 3D program, stresses, temperatures, strain rates, deformations and features of metal forming were determined when combining the crystallization and IRE in one cycle. The phase composition, microstructure and properties of a pilot batch of wire from the experimental Al-0.8(Ce, La)-0.2Zr-0.2Fe alloy after combined thermal-deformation treatment were investigated. Rational technological parameters of the IRE, drawing and step annealing for the production of heat-resistant wire with an ultimate tensile strength of 180&#xa0;MPa, elongation to failure of 3%, and electrical resistance of 0.02936 Ω‧mm/m<sup>2</sup> have been determined.</p>

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Evaluation the influence of combined thermal-deformation treatment parameters on the physical and mechanical properties of long-length semi-finished conductive products from Al-REM-Zr alloy

  • 期刊论文

  • 发表日期：

    2025年8月29日

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  • Vadim Mikhaylovich Bespalov,
  • Sergey Borisovich Sidelnikov,
  • Viktor Aleksandrovich Berngardt,
  • Denis Sergeevich Voroshilov,
  • Yuriy Viktorovich Baykovskiy,
  • Dorzhizhab Bairovich Darmazhapov,
  • Alexander Vasilyevich Durnopyanov,
  • Diana Dmitrievna Bespalova,
  • Marina Vladimirovna Voroshilova,
  • Timofey Vladimirovich Bermeshev,
  • Igor Lazarevich Konstantinov,
  • Sergey Nikolaevich Lezhnev

摘要

The article shows the influence of the complex composition of the aluminum alloy of the Al-REM-Zr system. As well as rational parameters of combined processing by the methods of ingotless rolling-extrusion (IRE), step annealing and drawing for the manufacture of conductive wire with an improved combination of heat resistance, strength, ductility and electrical conductivity. By computer modeling of the new IRE process for rods in the Deform 3D program, stresses, temperatures, strain rates, deformations and features of metal forming were determined when combining the crystallization and IRE in one cycle. The phase composition, microstructure and properties of a pilot batch of wire from the experimental Al-0.8(Ce, La)-0.2Zr-0.2Fe alloy after combined thermal-deformation treatment were investigated. Rational technological parameters of the IRE, drawing and step annealing for the production of heat-resistant wire with an ultimate tensile strength of 180 MPa, elongation to failure of 3%, and electrical resistance of 0.02936 Ω‧mm/m2 have been determined.