| 摘要 |
A method of making a hard or semihard magnetic alloy which involves initially forming a body of a spinodally decomposable alloy composition of iron-chromium-cobalt base by casting an admixture of 3 to 30% by weight cobalt, 10 to 40% by weight chromium, 0.1 to 15% by weight vanadium and the balance iron. The body is then solution treated at an elevated temperature and for a period sufficient to produce a homogeneous single alpha -phase structure in the body and the solution-treated body is tempered at a reduced temperature and for a time period sufficient to spinodally decompose therein the single alpha -phase structure into a composition-modulated, phase-separated structure consisting of an alpha 1 phase which is magnetic and an alpha 2 phase which is nonmagnetic, said phase-separated structure forming the magnetic alloy.
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