Gradient Structure Generated in Hardox 450 Steel with Built-Up Layer

This article investigates the phase composition and the defect substructure of a modified layer built up on Hardox 450 steel by wire containing C, Mn, Si, Cr, Nb, W, and Fe. It is established that, upon surfacing, a high strength surface layer with increased microhardness is formed. Using transmissi...

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Veröffentlicht in:	Inorganic materials : applied research 2018, Vol.9 (3), p.427-432
Hauptverfasser:	Konovalov, S. V., Kormyshev, V. E., Gromov, V. E., Ivanov, Yu. F., Kapralov, E. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Abrasion resistant steels Chemistry Chemistry and Materials Science Chromium Functional Coatings and Surface Treatment Industrial Chemistry/Chemical Engineering Inorganic Chemistry Manganese Materials Science Microhardness Niobium carbide Phase composition Surface layers Surfacing Transmission electron microscopy Tungsten
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Beschreibung
Zusammenfassung:	This article investigates the phase composition and the defect substructure of a modified layer built up on Hardox 450 steel by wire containing C, Mn, Si, Cr, Nb, W, and Fe. It is established that, upon surfacing, a high strength surface layer with increased microhardness is formed. Using transmission electron microscopy, it is demonstrated that strengthening of the surface layer can be attributed to generation of multiphase submicron- and nanosized structure with inclusions of niobium carbide particles of submicron size.
ISSN:	2075-1133 2075-115X
DOI:	10.1134/S2075113318030164