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- W2291288313 abstract "Purpose: The aim of the work was to investigate the microstructure, thermal stability and some mechanical properties of a new Fe41Ni39P10Si5B5 glass forming alloy. Design/methodology/approach: A five component Fe41Ni39P10Si5B5 alloy was produced using arc melting in argon protective atmosphere from of pure elements 99.95 wt. % Fe, 99.95 wt. % Ni, 99,999 wt. % Si and Fe-P, Fe-B, Ni-P, Ni-B master alloys. The alloy was melt spun. The microstructure of the arc melted droplet is investigated in scanning electron microscope with EDS. The melt spun ribbon was investigated by X-ray diffraction, micro-hardness measurement, dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC) and the microstructure of the melt spun ribbon at the beginning of crystallization process was observed using high resolution transmission electron microscope (HRTEM). Findings: The arc-melt alloy consisted of four phase constituents that provided amorphization during the melt spinning process. The alloy has relatively high hardness of 720HV and the elastic modulus on the level of 102 GPa. The elastic modulus is stable up to ca. 500 K and after it shows glass transition at 603 K. Crystallization causes temporary increase of the elastic modulus and finally causes brittleness of the sample. The crystallization was found to have the two stages and it begins with formation of bcc iron-base nano-metric crystals. Research limitations/implications: It has been shown that the multi-component Fe-Ni-P-Si-B system provides the multiphase composition and enables relatively easy amorphization of the Fe41Ni39P10Si5B5 alloy through the melt-spinning method. It is also possible to control the microstructure and the mechanical properties through the appropriate heat treatment. The existence of glass transformation in the alloy provides possibility of consolidation non-bulk material into a bulk sape. Practical implications: The work reports about the glass forming alloy of relatively good mechanical properties produced from a low-cost commercial purity precursors. The future investigations on the alloy can provide the basis to the processing and manufacturing soft-magnetic bulk parts of a very low coercivity. Originality/value: The study provides an original information about the primary structure of the arc-melt Fe41Ni39P10Si5B5 alloy as well as about the microstructure, mechanical properties and thermal stability of meltspun ribbon." @default.
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- W2291288313 date "2008-01-01" @default.
- W2291288313 modified "2023-09-27" @default.
- W2291288313 title "The microstructure and properties of a new Fe 41 Ni 39 P 10 Si 5 B 5 glass forming alloy" @default.
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