[Kovove materialy - Metallic materials]
    Wed - October 09, 2024 - 18:51 No. of hits : 1789568 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 37 (1999), Issue 5

Sulphide-nitride inhibition variant with AlN, MnS precipitates and Cu co-precipitates with MnS in Fe-3%Si steels (in Slovak)
BRUNCKOVA, H., KOVAC, F., TRPCEVSKA, J.
vol. 37 (1999), no. 5, pp. 331 - 348

Abstract
The paper deals with the sulphide-nitride inhibition variant of Fe-3%Si (AlN, MnS particles) combined by Cu co-precipitation with MnS. These secondary microphases - precipitates - were obtained by electrochemical and chemical isolation methods. Using the chemical and EDX analysis method to the samples of orientated electrochemical steel of different types, the changes of AlN and MnS precipitates in the state after hot rolling, decarburization, and in the final state was found. Cu addition to MnS influences the particle formation with various chemical composition of ε-Cu in combination with Cu2S, or with Cu2-xMnxS complex. If Cu < 0.1 % is present in orientated electrotechnical steel, the both ε-Cu particles and Si3N4 precipitates are precipitated and if Cu > 0.1 %, the spherical ε-Cu particles and ellipsoidal Cu2S particles or co-precipitates of Cu and MnS are precipitated to the detriment of Si3N4.

Key words
sulphide-nitride inhibition, chemical and electrochemical isolation, AlN, MnS precipitates, Cu co-precipitation with MnS, ellipsoidal Cu2S particles, Cu2-xMnxS complex, spherical ε-Cu particles

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
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