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    • Study on the Influence of Nickel Additions on AA7020 Formability Under Superplastic Forming Like Conditions
    Authors: Taylor, S.; Janik, V.; Grimes, R.;  Advisor: -;  Co-Author: - (2023)

    This study set out to look at the influence of nickel additions on a commercially available AA7020 to understand the impact of the resultant intermetallics on recrystallization, formability and material strength. Elevated temperature tensile testing across a range of strain rates (5 × 10−4 s−1 × 10−1 s−1) and three temperatures (450− 500 °C) to compare material ductility followed by gas bulge testing at 475 °C and two gas pressures to investigate formability in a test closer to industrial forming conditions. Material strength was established using standard tensile testing, and EBSD used to understand the microstructural evolution of the materials.