Deformation Stability of Al 7075/20%SiC<sub>p</sub> (63 μm) Composites during Hot Compression

作者: M. Rajamuthamilselvan , S. Ramanathan

DOI: 10.4236/GM.2012.24017

关键词:

摘要: Stir cast Al 7075/20%SiCp composites were subjected to compression testing at strain rates and temperatures ranging from 0.001 1.0 s−1 300 500°C respectively. The associated microstructural transformations instability phenomena studied by observations of the optical electron microscope. power dissipation efficiency parameter calculated using dynamic material model plotted with temperature logarithm rate obtain processing maps for strains 0.5. domain higher efficiencies corresponds recrystallization during hot deformation. Using maps, optimum parameters can be identified effective deformation composites.

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