Journal ArticleDOI
Al Effect on the Structure of the Spray Formed Fe88Si12 (at%) Alloy
Fabiana Saporiti,A.H. Kasama,Bibiana Arcondo,Walter José Botta,Claudio Shyinti Kiminami,Claudemiro Bolfarini,Fernando Audebert +6 more
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TLDR
In this article, the effect of the addition of Aluminum on the crystalline structure of Fe-Si alloys was analyzed by means of X-ray diffraction and Mossbauer Spectroscopy.Abstract:
Fe-Si alloys have excellent soft magnetic properties, specially around 12 at% Si. However, its industrial application is limited because of the lack of ductility, which causes cracking during rolling operations for the fabrication of thin sheets. The reason of the brittleness of the high silicon alloys is a disorder/order reaction at low temperatures. The aim of this work is to analyze the effect of the addition of Aluminum on the crystalline structure of Fe-Si alloys. Samples with a chemical composition of Fe88Si12 and Fe87Si12Al1 (at%) were prepared by Spray Forming. The structure was studied by means of X-ray diffraction and Mossbauer Spectroscopy. The presence of the DO3 and α- Fe phases were observedread more
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Ordered phases and texture in spray-formed Fe–5 wt%Si
R.D. Cava,Walter José Botta,C.S. Kiminami,M. Olzon-Dionysio,S.D. Souza,Alberto Moreira Jorge,Claudemiro Bolfarini +6 more
TL;DR: In this article, the effect of heat treatment on the crystalline structure of thin sheets of Fe-5-wt%Si alloy obtained in a two-step fabrication route: (1) spray forming of Fe −3.5%Si + 2.0%Sip composite and (2) rolling and heat treatment of the composite to dissolve the silicon and homogenize its content across the thickness of sheet samples.
Journal ArticleDOI
Microstructural characterization of high-silicon iron alloys produced by spray forming and co-injection of Si particles
R.D. Cava,D.P. Oliveira,T. Yonamine,J.J.A. Moreira,Walter José Botta,C.S. Kiminami,Claudemiro Bolfarini +6 more
TL;DR: In this paper, the main focus was to produce thin sheets of Fe-5-wt.%Si alloy in two steps: (1) as a Fe-3.5%Si+3%Sip (Si particles) composite, using spray forming, and (2) rolling and heat treating the composite to dissolve the silicon and homogenize its content throughout the thickness of the sheet.
References
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Journal ArticleDOI
The B2 and DO3 Ordering Reactions in Iron–Silicon Alloys in the Vicinity of the Curie Temperature
TL;DR: In this article, the A2 → B2 ordering reaction appears to occur homogeneously (i.e. in the non-classical manner) both above and below the Curie temperature, Te.
Journal ArticleDOI
The effect of heat treatments and Si contents on B2 ordering reaction in high-silicon steels
TL;DR: The silicon content was increased up to 6.5% to reduce the power loss of the silicon steels as mentioned in this paper, but the difference in casting method did not result in any difference in suppressing the B2 ordering.
Journal ArticleDOI
Crystallization behaviour of amorphous Fe73.5Cu1Nb3Si13.5B9
TL;DR: In this paper, the phase composition of amorphous alloys like Fe73.5Cu1Nb3Si13.5B9 (FINEMETTM) was studied after annealing at various temperatures for various times.
Journal ArticleDOI
Mössbauer Study of Ordering in FeSi Alloys
TL;DR: The ordering of FeSi alloys with Si-content less than 25 at% has been examined in this article, showing a relatively strong preference for large Si-Si inter-atomic distances.
Journal ArticleDOI
Study of the brittle behaviour of annealed Fe-6.5 wt%Si ribbons produced by planar flow casting
TL;DR: In this paper, a study of the embrittlement process of Fe-65wt%Si ribbons is made, through mechanical tests and structural investigations on ribbons subjected to different cooling rates.
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