IRON BASE SILICON-MANGANESE ALLOY OR IRON BASE SILICON-MANGANESE-NICKEL ALLOY GOOD IN GRINDABILITY AND ALLOY POWDER THEREOF

摘要

PROBLEM TO BE SOLVED: To produce an easily grindable and mass-producible iron base S-Mn or iron base Si-Mn-Ni alloy and to produce the alloy powder thereof. ;SOLUTION: This alloy and alloy powder have a compsn. contg., by weight, 0.40 to 1.20% C, 5.0 to 12.0% Si and 19.0 to 42.0% Mn or 30% N, and the balance Fe, also satisfying Si 11.89-2.92C-0.077Mn, moreover having 550 Vickers hardness (Hv), and in which the area ratio of dendrite in the structure is regulated to 50%. Furthermore, in a condition in which they have this componental compsn., Si8.3C+0.14Mn is also satisfied, and moreover, 1.10 relative permeability () is satisfied.;COPYRIGHT: (C)1998,JPO