Magnetic and mechanical properties of ultrafine Fe/Cu laminates produced by repeated rolling
Magnetic and mechanical properties of ultrafine Fe/Cu laminates produced by repeated rolling
复制标题
反复轧制超细铁/铜层压板的磁性能和机械性能
DOI：
10.1051/jp4:2000605
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
N. Igata
中科院分区：
文献类型：
--
作者：
M. Sasaki;D. Imai;K. Shirae;N. Igata
本文采用热、冷轧复合轧制方法，成功地从宏观叠层金属板中制备出了Fe层厚度约为80 nm的大块Fe/Cu多层叠层。将调节至17重量% Cu和余量Fe的叠层金属板热轧并通过冷轧减少98%。然后在1050 ℃的温度下对Fe/Cu叠层进行回火，使叠层厚度为1 mm，再次冷轧至0.07mm的厚度，并在450 ℃下老化。Fe/Cu多层叠层具有23 Oe的高矫顽力，15 kG的剩余磁通密度，17 kG的最大磁通密度，和0.87的矩形比平行于轧制方向，最大强度为1249 MPa。这种材料可以用作半磁性材料，通过施加外部磁场使其磁化强度发生动态变化，如用于电自动交换和半固定存储器的自锁继电器，以存储信息并重复读出。
The bulk Fe/Cu multilayer laminates with an Fe layer thickness of about 80nrn have been successfully produced by repeated hot-and cold-rolling feom a macroscopic stack of metal sheets. The stacks adjusted to 17 wt% Cu and the balance Fe metal sheets were hot-rolled and reduced 98% by cold rolling. The Fe/Cu laminates were then tempered at a temperature of 1050 C for a laminate thickness of 1mm, cold-rolled again to a thickness of 0.07 mm and aged at 450 C. The Fe/Cu multilayer laminates exhibited a high coercive force of 23 Oe, a residual flux density of 15 kG, a maximum flux density of 17 kG, and a squareness ratio of 0.87 parallel to the rolling direction with maximum strength of 1249 MPa. This material could be used as a semi-magnetic material by application of the dynamic change in its magnetization by an external magnetic field, as in a latching relay for electric automatic exchange and semi-fixing memory to memorize information and repeatedly read it out.