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A computer simulation with error propagation was performed to determine the optimal placement of marker points for calculating the instantaneous center of rotation (CRi). The authors assume that planar rigid body motion occurs between two positions, each defined by marker points. Noisy marker points were generated by perturbing their coordinates with random(More)
The hot deformation behavior of Al-0.12Fe-0.1Si alloys with varied amounts of Cu (0.002–0.31 wt %) was investigated by uniaxial compression tests conducted at different temperatures (400 ˝ C–550 ˝ C) and strain rates (0.01–10 s ´1). The results demonstrated that flow stress decreased with increasing deformation temperature and decreasing strain rate, while(More)
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