Correlation between solid fraction and tensile properties of semisolid RAP processed aluminum alloys
作者： Amir Bolouri , Chung Gil Kang
DOI: 10.1016/J.JALLCOM.2011.12.045
关键词:
摘要: Recrystallization and remelting (RAP), a promising route for thixoforming process, was used to process three aluminum alloys, AA2024, AA6061, A356, under experimental conditions designed yield various solid fractions (liquid fractions) within the microstructure. The thixotropic microstructures obtained were characterized in detail linked corresponding tensile properties. When liquid fraction increased (the decreased), an initial reduction properties perceived. lowest at of 35% (610 °C), 25% (623 40% (585 °C) A356 respectively. For AA6061 further increase resulted improvement However, AA2024 alloy, samples could not withstand their own weight higher that tests rendered. It concluded alloys below minimum properties, structural interconnected grains (skeletons), quenched eutectic phase located grain boundaries film) controlled fracture behavior. Nevertheless, nature cohesion between film determining factor when 46% 60%
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