Effect of Alternating Bending on the Structure and Mechanical Properties of Aluminum Alloy Sheets

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发表日期：

2024年5月1日

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V. A. Andreev,
S. A. Bondareva,
M. V. Gorshenkov,
N. V. Laisheva,
S. O. Rogachev,
D. V. Ten,
A. A. Shamkhalova,
A. E. Shelest

摘要

Abstract—The effect of the temperature of preliminary annealing (420 or 300°C, 1 h) and the number of roll leveling machine passes (one to three) on the microstructure and mechanical properties of aluminum VD1 (Al–Cu–Mg) thin sheets (3-mm thick) is studied. Alternating bending deformation by one- and two- pass rolling monotonically increases the yield strength of the annealed (at 420°C) alloy from 99 to 133 MPa (by 34.8% relative to its annealed state) without changing the strip geometry and its ductility. Annealing at 300°C increases the yield strength to 300 MPa but reduces ductility. Subsequent alternating bending does not change the mechanical properties of the alloy.