垂直磁记录介质Co-50Fe10Ta5Zr合金高温塑性变形行为研究  

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

作　　者：董亭义[1] 罗俊锋[1] 万小勇[1] 王欣平[1] 

机构地区：[1]北京有色金属研究总院有研亿金新金属材料股份有限公司,北京100088

出　　处：《热加工工艺》2011年第24期66-68,72,共4页Hot Working Technology

摘　　要：研究了铸造Co-50Fe10Ta5Zr合金在高温的塑性变形行为。结果表明,随加热温度的升高和应变速率的减小,该合金由脆性转变成塑性。当温度为1200℃,两火热轧,应变速率为1.2 s-1时,道次变形量为5%,总变形量为20%的工艺进行热轧制加工,可减少铸造Co-50Fe10Ta5Zr合金的内部缺陷。The compressive deformation behavior of Co-50Fel0Ta5Zr 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.

关 键 词：铸造 FeCoTaZr合金 热模拟 塑性变形 热轧 

分 类 号：TG337.1[金属学及工艺—金属压力加工]