Preparation of Amorphous Fe–Si–B and Co–Si–B Alloy Wires by a Melt Extraction Method and Their Mechanical and Magnetic Properties
- 1 January 1995
- journal article
- Published by Japan Institute of Metals in Materials Transactions, JIM
- Vol. 36 (7), 802-809
- https://doi.org/10.2320/matertrans1989.36.802
Abstract
Amorphous (Fe, Co)–Si–B ternary and quaternary wires were found to be produced over a wire diameter range of 20 to 80 μm by a melt extraction method using a copper wheel with an edge angle of 60 degrees. The wires without any concaves in the transverse cross section were prepared in the extraction condition where the circumferential velocity of the wheel and the rising velocity of the molten alloy are in the range of 20 to 40 m/s and 0.1 to 4.0 mm/s, respectively. The resulting amorphous wires have good bending ductility in the wire diameter range below 80 μm for the Fe75Si10B15 alloy and below 60 μm for the Co72.5Si12.5B15 alloy. The thermal stability and mechanical properties except tensile fracture strength (σf) for the amorphous wires are nearly the same as those for the melt-spun amorphous ribbons. The σf is 3800 MPa for the Fe75Si10B15 wire and 3600 MPa for the Co72.5Si12.5B15 wire, being about 10% higher than those for the corresponding ribbon samples because of the low degree of stress concentration resulting from the good smoothness on the outer surface. The magnetic properties of saturation magnetization, coercivity and effective permeability at 1 kHz for the wires are nearly the same as those for the ribbons. The squareness of the hysteresis B–H loop for the Fe–Si–B amorphous wire is better than that for the same Fe-based ribbon and the sharp output voltage due to the reversion of magnetic flux is also observed for the present Fe78Si10B12 amorphous wire. The combined properties of good mechanical properties and unique magnetic properties leading to the generation of the sharp output voltage seem to be promising for the subsequent development of the present fine amorphous wires.Keywords
This publication has 14 references indexed in Scilit:
- Preparation, mechanical strengths, and thermal Stability of Ni-Si-B and Ni-P-B Amorphous WiresMetallurgical Transactions A, 1987
- Large Barkhausen effect and Matteucci effect in amorphous magnetostrictive wires for pulse generator elementsIEEE Transactions on Magnetics, 1985
- Review on recent advances in the field of amorphous-metal sensors and transducersIEEE Transactions on Magnetics, 1984
- Mechanical properties and magnetic behavior of deformed metal glass wiresJournal of Applied Physics, 1984
- Young's modulus of Fe-, Co-, Pd- and Pt-based amorphous wires produced by the in-rotating-water spinning methodJournal of Materials Science, 1983
- Production of amorphous CoSiB and CoMSiB (M ≡ Group IV – VIII transition metals) wires by a method employing melt spinning into rotating water and some properties of the wiresMaterials Science and Engineering, 1982
- Production of Fe-P-C amorphous wires by in-rotating-water spinning method and mechanical properties of the wiresJournal of Materials Science, 1982
- The critical thickness for the formation of Ni-Si-B amorphous alloysMetallurgical Transactions A, 1981
- Production of PdCuSi amorphous wires by melt spinning method using rotating waterScripta Metallurgica, 1981
- Production of Metal Filament by In-Rotating-Water Spinning MethodJournal of the Japan Institute of Metals and Materials, 1981