Mechanical spectroscopy in commercial Fe–6 wt.% Si alloys between 400 and 1000 K

Lambri, O.A.; Pérez-Landazábal, J.I.; Cano, J.A.; Recarte, V.

doi:10.1016/j.msea.2003.06.006

Cited by 16 publications

(33 citation statements)

References 12 publications

(14 reference statements)

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“…Despite the large indetermination of the background damping law, a rough estimation of the peak temperature by choosing the background as a straight line between 870 and 930 K could be made. The resulting peak temperature and natural frequency fit in reasonable agreement for the Arrhenius plot obtained for Fe-10 at.% Si alloys (H = 2.5 eV) [10]. The contribution of the Curie transition could appear overlapped to the mechanical spectroscopy spectra for C and D samples.…”

Section: Discussionsupporting

confidence: 78%

“…[10], is the more reasonable physical mechanism, giving rise to the observed mechanical spectroscopy behaviour in the present work. Indeed, the arguments in favour of the occurrence of GB mechanism are the followings:…”

Section: Discussionsupporting

confidence: 70%

“…The decrease of the order degree by heating the sample above 1223 K enhances the dislocations and grain boundaries mobility making easier the recovery of the asquenched dislocations. This leads to a rearrangement of grain boundary dislocations revealed through the increase in the GB peak intensity [10]. Therefore, the absence of relaxation peaks during the heating up to 1130 K in Fe-25 at.% (Al + Si) can be produced by a reduced dislocation and grain boundary mobility owing to the appearance of the D0 3 ordered state.…”

Section: Discussionmentioning

confidence: 99%

“…Additionally, a study of the grain boundary (GB) relaxation in binary Fe-Si alloys has been reported in Refs. [10][11][12]. In these works, the behaviour of the characteristic grain boundary relaxation in iron and the grain boundary peak related to the presence of solute atoms in the iron matrix [4] was studied in order to correlate the behaviour of these peaks to the recrystallization and order degree.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical spectroscopy in Fe–Al–Si alloys at elevated temperatures

Lambri

Pérez-Landazábal

Cuello

et al. 2009

Journal of Alloys and Compounds

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Section: Discussionsupporting

confidence: 78%

Section: Discussionsupporting

confidence: 70%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mechanical spectroscopy in Fe–Al–Si alloys at elevated temperatures

Lambri

Pérez-Landazábal

Cuello

et al. 2009

Journal of Alloys and Compounds

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“…Other studies [72] were performed on steel with lower Si-content (~12 at. % Si) based on mechanical spectroscopy (internal friction) combined with neutron diffraction and DSC.…”

Section: Positron Annihilation and Ebsd Deformation Recovery And Rementioning

confidence: 99%

A review of ordering phenomena in iron-silicon alloys

Villafañe¹,

Houbaert²

2013

REVMETAL

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Silicon steel is an industrially-desired alloy of iron and silicon, characterised by soft magnetic properties, low eddy-current losses, and low magnetostriction. Silicon steels have narrow hysteresis cycles, making them particularly advantageous in applications using electromagnetic fields, such as transformers, generators, electric motor cores, and few other components in industry. Despite its incontestable industrial value, there is not much agreement on the atomic structure of silicon steel. Gaining better understanding of e.g. ordering processes in Fe-Si alloys could not only explain their magnetic properties, but also open opportunities to reduce their weaker characteristics, such as brittleness that adversely affects silicon steel workability and its associated high production costs. This review summarises the state-of-the-art knowledge about ordering in silicon steel and describes the most relevant experimental techniques used for studying its microstructure. In addition, the process of building the iron rich part of the Fe-Si phase diagram is explained. Lastly, the influence of order on the alloy's magnetic and mechanical properties is illustrated. KeywordsOrdering; Iron-silicon alloys; Intermetallic phases; Mechanical properties; Phase diagram. Revisión de fenómenos de orden en aleaciones hierro-silicio ResumenEl acero al silicio es una aleación de importancia industrial, caracterizada por propiedades magnéticas blandas, bajas pérdidas por corrientes de Foucault y baja magnetostricción. Los aceros al silicio tienen ciclo de histéresis estrecho, lo que es una ventaja en aplicaciones con campos electromagnéticos, como transformadores, generadores, núcleos de motores eléctricos y otros componentes industriales. A pesar de su incomparable valor industrial, no hay convenio sobre la estructura atómica del acero al silicio. Obtener mayor conocimiento sobre los procesos de orden no sólo podría explicar las propiedades magnéticas sino que también podría abrir vías para la reducción de sus características más débiles, como su fragilidad, la cual afecta negativamente a la fabricación del acero al silicio y se asocia con altos costes de producción. Esta revisión resume los últimos conocimientos sobre orden en acero al silicio y describe las técnicas experimentales más importantes usadas para estudiar su estructura. Además, se da una explicación sobre la construcción de la parte rica en hierro del diagrama de fases del Fe-Si. Por último se ilustra la influencia del orden en las propiedades magnéticas y mecánicas. Palabras claveOrden; Aleaciones hierro-silicio; Fases intermetálicas; Propiedades mecánicas; Diagrama de fases.

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