Studies on Formability Behaviour of Aluminium Alloy Sheets with Ceramic Nanocoatings

Abstract:

Forming limit diagram presents limit strains for different linear strain paths. In other words it indicates localized formability of sheet metals under different proportional loading and is considered a powerful tool for trouble shooting in sheet-metal forming industries. In this study in-plane and out-of-plane forming limit diagrams were determined for aluminum 5052. In the experimental works, all specimens were prepared in the rolling direction and annealed before testing. Forming up to fracture was carried out on INSTRON UTM with a tensile force of 1N. The sheet samples were subjected to tension-compression state of strain by varying the notch sizes of the samples. FLD was drawn by plotting the minor strain in abscissa and corresponding major strain in ordinate and by drawing a curve which separates the safe region from the unsafe region.

• Periodical: Advanced Materials Research (Volumes 984-985)
• Pages: 482-487
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.984-985.482
• Online since: July 2014
• Authors: M. Jinnah Sheik Mohamed*, N. Selvakumar
• Keywords: Al 5052, Formability, Forming Limit Diagram (FLD), In Situ Tensile Test, Nanocoating, Scanning Electron Microscope (SEM)

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