| Issue |
J. Phys. IV France
Volume 10, Number PR6, April 2000
The Sixth Japan-France Materials Science SeminarJFMSS-6 Microstructural Design for Improved Mechanical Behaviour of Advanced Materials |
|
|---|---|---|
| Page(s) | Pr6-27 - Pr6-32 | |
| DOI | https://doi.org/10.1051/jp4:2000605 | |
JFMSS-6
Microstructural Design for Improved Mechanical Behaviour of Advanced Materials
J. Phys. IV France 10 (2000) Pr6-27-Pr6-32
DOI: 10.1051/jp4:2000605
Magnetic and mechanical properties of ultrafine Fe/Cu laminates produced by repeated rolling
M. Sasaki1, D. Imai1, K. Shirae1 and N. Igata21 Nippon Metal Industry Co. Ltd., 1-30 Ohyama, Sagamihara, Kanagawa 229-1184, Japan
2 Science University of Tokyo, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
Abstract
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.
© EDP Sciences 2000