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<p>The article proposes a thermomechanical processing method based on rotary forging which ensures the production of long billets from Al – 2 wt.% Cu – 2 wt.% Mn alloys. Rotary forging of the alloy was performed at 200°C (after holding for 10 – 15 min) and subsequent annealing in the temperature range of 250 – 450°C. The study investigated the structure of the aluminum alloy in different states and measured its Vickers microhardness. Additionally, static tensile tests were conducted on the specimens. Long billets were obtained by rotary forging. They had high strength combined with significant plasticity (yield strength was above 300 MPa, elongation equaled 13%) as well as high thermal stability (up to 350°C) without additional introduction of zirconium into the alloy.</p>

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Effect of Rotary Forging on the Microstructure and Mechanical Properties of Al – Cu – Mn Alloys Used in Electrical Engineering

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • S. O. Rogachev,
  • K. A. Tsydenov,
  • V. A. Andreev,
  • S. A. Bondareva

摘要

The article proposes a thermomechanical processing method based on rotary forging which ensures the production of long billets from Al – 2 wt.% Cu – 2 wt.% Mn alloys. Rotary forging of the alloy was performed at 200°C (after holding for 10 – 15 min) and subsequent annealing in the temperature range of 250 – 450°C. The study investigated the structure of the aluminum alloy in different states and measured its Vickers microhardness. Additionally, static tensile tests were conducted on the specimens. Long billets were obtained by rotary forging. They had high strength combined with significant plasticity (yield strength was above 300 MPa, elongation equaled 13%) as well as high thermal stability (up to 350°C) without additional introduction of zirconium into the alloy.