Abstract
Pore closure behavior in sintered Al-4Fe3C and Al-4Fe3C-2Cu composite preforms were studied under cold and hot deformation conditions. Preforms of 0.2 aspect ratios with 85±1% initial density were prepared through compaction operation using 1 MN hydraulic press. For hot deformation, directly as sintered preforms are subjected to swaging operation to different strain rate. Preforms that are allowed to cool it to room temperature within the furnace after sintering process are subjected to cold upsetting till visible cracks appear on diametrical surface. The comparative analysis on pore closure against stress, strain, Poisson’s ratio and the stress formability index are performed.
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