| 摘要 |
PURPOSE:To offer a magnetic alloy composed of a single alloy, having a complex magnetic property and excellent in workability, by preparing an alloy containing specified rates of Cr, Co, W, Ti, Zr, Hf and Fe. CONSTITUTION:An alloy comprising, by weight ratio, 17-35% Cr, 8-20% Co, 0.1-10% W, 0.1-8% of one or more of Ti, Zr and Hf, and the balance being Fe, is prepared. The alloy may contain 0.1-10% of one ore more of Mn, Y, Cu, Zn, Al, C, rare earth metals, Ru, Rh, Pd, Os, Ir and Pt as additional components. Its complex magnetic property is obtained by solution-treating the alloy in an alpha+gamma dual phase zone and utilizing the spinodal decomposition of each phase, a gamma alpha' transition mechanism and an age-precipitation-hardening mechanism so that mainly alpha contributes to a large coercive force while, gamma contributes to a small coercive force. Thus, the magnetic alloy excellent in mass-producibility is produced at a low cost. |
