Effect of pre-treatment on properties of 6082 aluminium alloy profiles

doi:10.13251/j.issn.0254-6051.2023.07.024

Abstract

Abstract: Effect of pre-treatment, including pre-aging and pre-tensile deformation, on mechanical properties and conductivity of 6082 aluminium alloy after aging was investigated through analysis and comparison, and the effect mechanism of pre-treatment on conductivity and mechanical properties of the tested alloy after aging was elucidated. The results show that the recrystallization and grain growth are easy to be induced in the surface layers of profiles by the off-line solution treatment, and then when the solution treated specimens are stretched, the PLC(Portevin-Le Chatelier) phenomenon is observed in the stress-strain curve. The conductivity of the profiles decreases after pre-treatment(pre-deformation and pre-aging), increases before aging(placed for 6 h after pre-treatment), and then significantly increases after aging.

Key words: 6082 aluminium alloy, pre-treatment, mechanical properties, conductivity

CLC Number:

TG146.2

Hu Wu, Wu Yanmei, Huang Xianzan, Huang Yanyi, Liao Bin. Effect of pre-treatment on properties of 6082 aluminium alloy profiles[J]. Heat Treatment of Metals, 2023, 48(7): 143-147.

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