Abstract
The present work investigates the effect of cold working on the fracture toughness behaviour of AA1050H16 aluminium alloy. This alloy is the popular AA1XXX aluminium alloy series used in various industrial domains (chemical, construction, electrical….) due to good formability and workability. The AA1050H16 alloy was cold worked at ambient temperature to different percentage 20%, 50% and 80% along rolling direction. According to the ASTME1820 standard, the crack-tip opening displacement at resistance curves (CTOD-R) of virgin and cold worked sheets of AA1050H16 were experimentally estimated. The central cracked panels tests specimens (CCP) were extracted from the sheets that were processed by different cold working reduction of the obtaining of CTOD-R curves. The results found that the fracture toughness of AA1050H16 aluminium alloy was influenced by cold working. With the growth of the cold working percentage the maximum loads of the load-displacement curves and the fracture toughness resistance at crack initiation (Crack Tip Opening Displacement CTOD0.2) decreased rapidly. The loss of the fracture toughness of AA1050H16 conducted to change the fracture mechanism from ductile to brittle. That is applied to the decrease of the plasticity and ductility of AA1050H16 due to the rise in the density dislocation created during the cold working process.
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Taktak, W., Elleuch, R. (2023). Cold Working Effect on the Fracture Toughness Properties of AA1050H16 Aluminum Alloy. In: Walha, L., et al. Design and Modeling of Mechanical Systems - V. CMSM 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-14615-2_100
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DOI: https://doi.org/10.1007/978-3-031-14615-2_100
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