Hisato Koshiba

TL;DR: The phase transformation of Fe 90-X Nb 10 B X (X = 10 and 30) amorphous alloys by annealing was studied by differential scanning calorimetry (DSC) and X-ray diffraction.

TL;DR: In this article, a Co-based amorphous phase with glass transition and supercooled liquid region before crystallization was formed in Co70−xFexZr10B20 and Co72−xfexzr8B20 alloys containing more than 14 at % Fe, and the crystallization temperature was 899 K for the Co-Zr-B alloys and remains unchanged in the Fe concentration range up to 20%.

TL;DR: An amorphous soft magnetic alloy powder which was produced by a water atomization method is provided in this article, where the powder contains a phase having a temperature interval ΔTx of a supercooled liquid of 20K or more.

TL;DR: In this paper, the authors studied the local atomic structures in amorphous Fe70Zr10B20,F e 70Nb 10B20 and Fe70Cr10B 20 alloys with different Tx and concluded that the difference of their thermal stability is closely related with the difficulty of rearrangements of the prisms during crystallization.

TL;DR: Amorphous Fe 75 Ga 5 P 12 C 4 B 4 alloy rods were prepared in the diameter range up to 1.0 mm by copper mold casting in this article, and the glass transition temperature (T g ), supercooled liquid region (ΔT x) and reduced glass transition temperatures (Tg /T m ) of the amorphous alloy rods are 731 K, 37K and 0.61, respectively, in agreement with the results for the corresponding melt-spun amorphized alloy ribbon.