Patent ID: 8795449
Filing Date: 2014-08-05
Classification: C21D,C22C,H01F,H01L

Abstract:
1. A method of preparing a magnetostrictive sheet material, said method consisting of: (1) proportioning raw materials of the magnetostrictive sheet material according to ratios of the components which conform to the following general Formula: Fe (2) smelting the raw materials obtained in step (1) in a protective atmosphere and casting the raw materials to form an alloy ingot; (3) forging the alloy ingot at a temperature no less than 850° C. and no greater than 1100° C. with a forging deformation no less than 10% and no greater than 90%; (4) hot rolling the alloy ingot at a temperature no less than 900° C. and no greater than 1100° C., with a hot rolling deformation no less than 50% and no greater than 90%; (5) cold rolling the alloy ingot at room temperature over 10 to 30 passes with a cold rolling deformation no less than 60% and no greater than 90%; and (6) preserving the alloy ingot at a temperature no less than 1000° C. and no greater than 1300° C. for 1 to 24 hours, and then cooling the alloy ingot to room temperature.