Browsing by Subject "Recrystallisation"

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    Deformation and recrystallisation of powder processed commercially pure titanium
    (Maney Publishing, 2012) Knutsen, R D; Petersen, S
    The hot deformation behaviour of powder sintered commercially pure titanium has been compared to the behaviour of equivalent wrought metal under identical test conditions. Deformation was performed by uniaxial compression under vacuum at 900°C at nominal strains of 0·2, 0·4 and 0·65. The deformed microstructures were rapidly cooled to room temperature and subsequently annealed at 870°C. Lower grain growth, higher flow stress and greater incidence of recrystallisation were observed for the sintered metal. This behaviour is mainly attributed to the higher interstitial levels in the sintered metal which results in a lowering of the effective deformation temperature.
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    Investigating effects of interpass time during hot finish rolling on the evolution of texture in AA3104 Can Body Stock
    (2025) Chaole, Nkopo; George, Sarah; Hanief, Nasheeta
    During the hot rolling of aluminium strips, inter-pass time variability along the strip length leads to non-uniform microstructure and texture development, which impacts material properties. This study investigated the microstructure and texture evolution in AA3104 can body stock (CBS) during hot finish rolling by simulating multi-pass, high-temperature plane strain compression tests on a Gleeble 3800. Two scenarios were simulated: Position A, with a longer inter-pass time between the first two passes and a shorter time before the third pass, and Position B, with reversed timings. Post-deformation, samples were annealed and analysed using Scanning Electron Microscopy (SEM) and Electron Backscatter Diffraction (EBSD). Results indicate Position A exhibits smaller and larger grains, while Position B shows uniform grain size distribution. Texture analysis reveals stronger Cube texture in Position A and Goss and P texture dominance in Position B. These variations highlight the role of inter-pass time in recrystallisation behaviour, influencing grain structure and texture during hot rolling.