FeNi ALLOY COMPOSITION CONTAINING L10-TYPE FeNi ORDERED PHASE, METHOD FOR PRODUCING FeNi ALLOY COMPOSITION INCLUDING L10-TYPE FeNi ORDERED PHASE, FeNi ALLOY COMPOSITION HAVING AMORPHOUS MAIN PHASE, PARENT ALLOY OF AMORPHOUS MEMBER, AMORPHOUS MEMBER, MAGNETIC MATERIAL, AND METHOD FOR PRODUCING MAGNETIC MATERIAL
An FeNi alloy composition comprising an L1 0 -type FeNi ordered phase is provided, which satisfies at least one of the conditions that the sum of the content of Fe and the content of Ni is 90 at.% or less and that the FeNi alloy composition contains Si, and preferably satisfies at least one of the conditions that the ratio of the content of Fe to the content of Ni is 0.3 or more and 5 or less and that the sum of the content of Fe and the content of Ni is 65 at.% or more.
