| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
The forging in the supercooled liquid region (so-called glasswork) for the soft magnetic Fe-based bulk metallic glasses (BMGs), which are hardly workable material, has been investigated. In the development of the materials suitable for the forging, it has been found that the partial substitution of Nb by Y for Fe-Co-B-Si-Nb BMGs enhances the saturation magnetization as well as the glass-forming ability. The forging using cylindrical specimens of the Fe-based BMGs with diameters of 1.0～1.5 mm was carried out. The thick sheets with a thickness of approximately half of the original diameter could be produced. It was confirmed that these thick sheets maintain good soft magnetic properties. This technique is also expected to be applied to the fabrication of the magnetic cores of complex shape such as electric motors.
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