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  4. № 03/04 2011
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Dissolution of Chromium Carbide Cr3C2 in Kh17N2 Steel during Sintering

R.Yakovenko,
 
V.Masluk,
 
A.N.Gripachevskii,
 
V.B.Deimontovich
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Omeliana Pritsaka str.,3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2011, #03/04
http://www.materials.kiev.ua/article/1392

Abstract

The effect of sintering temperature (900–1300 °C) on the interaction of Cr3C2 with a steel matrix of Kh17N2 type is investigated. It is shown that complex iron–chromium carbide of (Cr, Fe)xCy type forms during sintering. With increasing temperature, it undergoes a number of phase transformations. The following mechanism of Cr3C2 dissolution in the steel matrix is established: Cr3C2 → 900 °С (Cr, Fe)2C → 1050 °С (Cr, Fe)7C3 → 1200 °С (Cr, Fe)23C6 → 1300 °С (Cr, Fe)2C.


CHROMIUM CARBIDE, PHASE TRANSFORMATIONS, SINTERING, STEEL MATRIX, X-RAY MICROANALYSIS

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