Hemiagenesia tiroidea asociada a tiroiditis crónica autoinmune

González, Antonio; Pereyra-García, F.; Marañés, Ignacio; Llorente, Irene

doi:10.1016/s1575-0922(03)74524-0

Cited by 1 publication

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“…Above 7 at% Si (∼3.65 wt%), the materials are too brittle to be rolled without appearing of cracks. [2] This lack of ductility has been attributed to structural decomposition into at least two phases known as B2 (Fe-Si) and DO3 (Fe 3 Si). [3] Several methods for preparation material with a high Si content have been developed, such as a special thermochemical routing, [4] hot dipping process followed by diffusion annealing, [5] chemical vapor deposition, [6] or mechanical alloying.…”

Section: Introductionmentioning

confidence: 99%

High temperature corrosion of Fe‐6 wt% Si steel in various atmospheres

Švábenská

Roupcová

Vondráček

et al. 2018

Materials & Corrosion

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Corrosion of Fe‐6Si steel during heat treatment at 500 and 700 °C in air, argon, and vacuum was studied. Phase and structure analysis were carried out using Mössbauer spectroscopy, X‐ray diffraction, scanning electron microscopy, Glow discharge optical emission spectrometry, and X‐ray photoelectron spectroscopy. Measurement of magnetic hysteresis loops were used to follow changes in magnetic properties. Structure and phase composition of surface layers change in dependence on annealing conditions. Besides the content of hematite, magnetite, and fayalite an increase in silicon content at the surface was detected namely after annealing at 700 °C. Our results show that good magnetic properties of the studied Fe‐6 wt% Si steel are not deteriorated substantially by annealing at 500 and 700 °C in air, argon, and vacuum. Therefore this steel can be applied in magnetic circuits working at high temperatures.

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