| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an Fe-based nanocrystalline alloy which can stably be produced even when using an industrial raw material containing a large amount of impurities and has excellent magnetic properties. <P>SOLUTION: This alloy composition has composition formula of Fe<SB POS="POST">a</SB>B<SB POS="POST">b</SB>Si<SB POS="POST">c</SB>P<SB POS="POST">x</SB>C<SB POS="POST">y</SB>Cu<SB POS="POST">z</SB>. The parameters satisfy the following conditions: 79≤a≤86 at%, 5≤b≤13 at%, 0<c≤8 at%, 0<x≤10 at%, 0≤y≤5 at%, 0.4≤z≤1.4 at%, and 0.08≤z/x≤1.2. Here, the alloy composition contains Al, Ti, Mn, S, O and N as impurities each in the following amount: 0≤Al≤0.3 mass%, 0≤Ti≤0.3 mass%, 0≤Mn≤1.0 mass%, 0≤S≤0.3 mass%, 0≤O≤0.3 mass% and 0≤N≤0.1 mass%. <P>COPYRIGHT: (C)2012,JPO&INPIT |
