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Laser processing of Fe-based bulk amorphous alloy
Surface and Coatings Technology, 2010Abstract Laser processing of Fe–Cr–Mo–W–C–Mn–Si–B glass forming alloy components without losing feedstock's partial amorphous structure is successfully demonstrated using Laser Engineered Net Shaping (LENS(tm)) — a solid freeform fabrication technique. In spite of known decreasing quenching effect with increasing deposit thickness in this process, no
Vamsi Krishna Balla, Amit Bandyopadhyay
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Fe‐Based Amorphous Alloy Coatings: A Review
Advanced Engineering MaterialsFe‐based amorphous alloy coatings (Fe‐AACs) have exhibited appropriate corrosion and wear resistance and improved the performance of material surfaces. This study summarizes the advances related to Fe‐based amorphous alloys pertaining to their chemical compositions and manufacturing processes and their associated effect on the amorphous structure ...
Reza Zare Noorbakhsh +2 more
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Crystallization and Nanocrystallization Kinetics of Fe-Based Amorphous Alloys
MRS Proceedings, 1999ABSTRACTIn this work we describe crystallization kinetics as inferred from time-dependent magnetization studies and thermal analysis for an Allied Signal amorphous Fe-based METGLAS® 2605SA-1 alloy and a NANOPERM (Fe88Zr7B4Cu1) alloy. We illustrate and contrast several phenomena important to understanding crystallization kinetics in particular to the ...
A. Hsiao +6 more
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Design of the Components of the Fe-Based Bulk Amorphous Alloys
Advanced Materials Research, 2012It’s well known that bulk Fe-based amorphous alloy is difficult to fabricate, but we develop low price Fe-based amorphous alloys applied in practice after systemic analyzing and considering the cost demand of the application. Finally, there are 7 Fe-based amorphous alloys fabricated by advanced copper mold casting after careful attempt.
Yu Fang Yang, W. Gao, D.L. Yan
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Study on Electrochemical Property of Fe-Based Amorphous Alloys
Advanced Materials Research, 2012There are 7 Fe-based amorphous alloys fabricated by advanced copper mold casting after careful attempt. The electrochemical property of amorphous alloys was studied for investigating the physics characteristic and properties applied in practice further.
Yu Fang Yang, Y. Shao
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Kinetics of isochronal crystallization in a Fe-based amorphous alloy
Journal of Alloys and Compounds, 2018Abstract In this paper, the kinetics of isochronal differential scanning calorimetry of Fe48Cr15Mo14Y2C15B6 amorphous alloy was analyzed to understand the mechanism of crystallization. The crystallization process constituted of overlapping exothermic transformations occurring from 900 to 1100 K with activation energies from 369 to 437 kJ mol
Tanaji Paul +3 more
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Young's modulus in Fe-based amorphous invar alloys
Journal of Non-Crystalline Solids, 1984Abstract The measurement of Young's modulus of Fe-B, Fe-P, Co-B and (Fe,Co,Ni)77Si10-B13 amorphous alloys has been carried out. Young's modulus measured under the saturation of magnetization Es can be arranged by the molar volume Vmol as Es∞Vmol−n (n≈2).
Shunji Ishio +3 more
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Stress Sensitive Property of Fe-base Amorphous Alloy
IEEE Translation Journal on Magnetics in Japan, 1987The high stress sensitivity of Fe-base amorphous alloy was studied. Permeability variation under uniaxial tensile stress measurements showed that the alloy had a saturation magnetostriction of 20 × 10?6 and a Young's modulus of 10000 kg/mm2. Permeability variation reached maximum in the neighborhood of 20 kHz, exhibiting the same tendency when the ...
H. Hase +3 more
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Hydrogen embrittlement of some Fe-base amorphous alloys
Materials Science and Engineering, 1976One of the promising properties of amorphous metallic alloys is their tensile strengths attaining as high as 300 kg/mm 2, at which strength levels ordinary steels are inevitably sensitive to hydrogen embri t t lement (HE). Chromium bearing Fe-base amorphous alloys have been shown to have excellent corrosion resistance [ 1 ], bu t local cell formation ...
M. Nagumo, T. Takahashi
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Thermodynamic prediction of the composition of Fe-based amorphous alloys
Rare Metals, 2007Abstract The liquidus univariant lines of the Fe-Nb-B ternary system have been thermodynamically calculated by means of CALPHAD method and Fe-based thermodynamic data. It is found that there are two eutectic reactions in the Fe-rich corner, that is, (1) L(Fe-3Nb-15B) → α + γ + M 2 B (1430 K), and (2) L(Fe-10Nb-27B) → FeB + Lc 14 + M 2 B (1575 K ...
Y REN +7 more
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