Deformation Behavior of Perpendicular Magnetic Recording Media Co-50Fe10Ta5Zr at High Temperature

The compressive deformation behavior of Co-50Fe10Ta5Zr alloy at high temperature was investigated.The results show that the deformation behavior transforms from crisp into plasticity with the decrease of strain rate or the increase of heating temperature.After the rolling pass deformation of 5%,the hot-rolling reduction of 20% in two heating,with 1.2 s-1 strain rate at 1200 ℃,pore hot-rolling process can be decreased.