B23-P-04High glass forming ability Fe-based soft magnetic amorphous alloys

Microscopy ◽  
2015 ◽  
Vol 64 (suppl 1) ◽  
pp. i113.2-i113
Author(s):  
C. N. Kuo ◽  
Y. H. Chen ◽  
T. Y. Wei ◽  
Y.L. Su ◽  
J. C. Huang
Keyword(s):  
Amorphous Alloys ◽  
Glass Forming Ability ◽  
Soft Magnetic ◽  
Glass Forming ◽  
Soft Magnetic Amorphous Alloys

Heat Treatment of Molten Rapidly Quenched Precursor as a Method to Improve the Glass Forming Ability of Alloys

1998 ◽  
Vol 554 ◽  
Author(s):  
V Manov ◽  
E Brook-Levinson ◽  
V. V. Molokanov ◽  
M. I Petrzhik ◽  
T. N. Mikhailova
Keyword(s):  
Heat Treatment ◽  
Amorphous Alloys ◽  
Glass Forming Ability ◽  
Soft Magnetic ◽  
Treatment Mode ◽  
Glass Forming ◽  
Heat Treatment Mode ◽  
Maximum Undercooling ◽  
Soft Magnetic Amorphous Alloys ◽  
Mode A

AbstractImprovement of glass forming ability (GFA) of two soft magnetic amorphous alloys (Fe75.5Ni1 3Si8.6B13.5 and Co69.6Fe1.3Mn4.5Si14.3B9 3Mo1) by heat treatment of melts prepared from different precursors (bulk ingot, rapidly quenched ribbons and granules) was studied. An assumption that the maximum undercooling ability corresponds to the maximum GFA was used to optimize the heat treatment mode. A temperature range was found by DTA for each alloy melt, favoring its undercooling (so called “undercoolable melt”). Usage of rapidly quenched precursor expands the range towards lower temperatures. GFA of the alloys was estimated by several melt quench techniques (casting, spinning and INROWASP). Fully amorphous samples with the thickness of 0.06–0.5 mm were prepared.

Formation, and mechanical and magnetic properties of bulk ferromagnetic Fe-Nb-B-Y-(Zr, Co) alloys

2006 ◽  
Vol 21 (4) ◽  
pp. 1019-1024 ◽  
Author(s):  
J.M. Park ◽  
J.S. Park ◽  
D.H. Kim ◽  
J-H. Kim ◽  
E. Fleury
Keyword(s):  
Magnetic Properties ◽  
Saturation Magnetization ◽  
Amorphous Alloys ◽  
Amorphous Structure ◽  
Glass Forming Ability ◽  
Partial Replacement ◽  
Soft Magnetic ◽  
Glass Forming ◽  
Mold Casting ◽  
Co Alloys

Fe element was partially substituted by Zr and Co in an attempt to enhance the glass-forming ability, and mechanical and soft magnetic properties of Fe74-xNb6B17Y3(Zr, Co)x (x = 3, 5, 8) amorphous alloys. Both partial replacements resulted in the enhancement of the glass-forming ability, and 3-mm diameter rods with a fully amorphous structure were prepared by a copper mold casting method. Zr and Co containing Fe-based bulk amorphous alloys exhibited high compressive fracture strength of about 4 and 3.5 GPa, respectively. However, Zr and Co induced different effects on the magnetic properties. Whereas the partial replacement of Fe by Zr was found to decrease dramatically the saturation magnetization, the partial replacement of Fe by Co provided an increase of about 25% of the saturation magnetization.

Effect of Neodymium on the Glass-Forming Ability and Magnetic Properties of Fe-Based Bulk Amorphous Alloys

2015 ◽  
Vol 1120-1121 ◽  
pp. 440-445
Author(s):  
Hua Man
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Glass Forming Ability ◽  
High Thermal Stability ◽  
Bulk Amorphous Alloy ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
Crystallization Peak ◽  
Bulk Amorphous Alloys ◽  
Glass Forming

The glass forming ability and magnetic properties were investigated for adding neodymium to the Fe71-xNb4B25Ndx (x=0, 3, 5, 7,10) alloys prepared by copper suction casting. It was found that proper neodymium (x=5~10 at.%) could improve glass forming ability of Fe-Nb-B alloys effectively. Bulk amorphous Fe66Nd5B25Nb4 and Fe64Nd7B25Nb4 samples were obtained and presented high thermal stability and good soft magnetic properties. The value of activation energy of the first crystallization peak for the bulk amorphous alloy Fe64Nd7B25Nb4 is 683 kJ/mol.

scholarly journals Glass-forming ability and soft magnetic properties of FeCoSiAlGaPCB amorphous alloys

2002 ◽  
Vol 92 (4) ◽  
pp. 2073-2078 ◽  
Author(s):  
J. M. Borrego ◽  
A. Conde ◽  
S. Roth ◽  
J. Eckert
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Glass Forming Ability ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
Glass Forming

Investigation of the Bulk Nd60-xDyxFe30Al10 (x=0, 2, 5) Amorphous Alloys

2005 ◽  
Vol 475-479 ◽  
pp. 3393-3396
Author(s):  
Hui Xu ◽  
Xiao Hua Tan ◽  
Nannan Qi ◽  
Qing Wang ◽  
Yuanda Dong
Keyword(s):  
Saturation Magnetization ◽  
Amorphous Alloys ◽  
Magnetic Behavior ◽  
Glass Forming Ability ◽  
X Ray Diffraction ◽  
Soft Magnetic ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Glass Forming ◽  
Intrinsic Coercivity

The glass-forming ability, thermal stability and magnetic properties of the Nd60-xDyxFe30Al10 (x=0, 2, 5) bulk amorphous alloys were investigated by x-ray diffraction (XRD), differential scanning calorimetry (DSC), scanning electron microscope (SEM) and the vibrating sample magnetometer (VSM). The results show that the glass forming ability of the Nd60-xDyxFe30Al10 (x=0, 2, 5) alloys decrease with increasing Dy content. The as-cast Nd60-xDyxFe30Al10 (x=0, 2, 5) alloys show hard magnetic behavior at room temperature. With increasing Dy content, the intrinsic coercivity of the alloys increase significantly while the saturation magnetization and remanence of the alloys decrease monotonously. With increasing annealed temperature, the intrinsic coercivity of the Nd55Fe30Al10Dy5 alloy decreased significantly, while the saturation magnetization and remanence decrease monotonously. The Nd55Fe30Al10Dy5 alloy shows soft magnetic behavior after annealed at 773K for 30 min.

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