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Birol, Y. (2005) Pre-Straining to Improve the Bake Hardening Response of a Twin-Roll Cast Al-Mg-Si Alloy. Scripta Materialia, 52, 169-173. https://doi.org/10.1016/j.scriptamat.2004.10.001

has been cited by the following article:

• TITLE: Effects of Pre-Strain on Bake Hardenability and Precipitation Behavior of Al-Mg-Si Automotive Body Sheets

  AUTHORS: Guanjun Gao, Lizhen Yan, Xiwu Li

  KEYWORDS: Al-Mg-Si Alloy, Pre-Strain, Bake Hardenability, Precipitation Behavior, Clusters

  JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.12 No.7, July 31, 2024

  ABSTRACT: The study investigates the effects of pre-strain on the bake hardenability and precipitation behavior of Al-Mg-Si automotive body sheets. The scanning electron microscopy, transmission electron microscopy, tensile test, Vickers hardness test, and differential scanning calorimetry were conducted for the purpose. It was found that the pre-strain treatment partially inhibits the natural aging hardening effect but cannot completely eliminate it. The pre-straining significantly enhances the bake hardening effect, with the 5% pre-strain sample showing the highest increase in yield strength and hardness. The formation of fine β precipitates and dislocation structures contribute to the observed strengthening. Additionally, the study highlights the importance of optimizing pre-strain levels to achieve the best balance between strength and ductility in bake-hardened aluminum alloys.