STRUCTURAL STABILITY OF HIGH NITROGEN AUSTENITIC STAINLESS STEEL
Journal Title: Materials Engineering - Materialove inzinierstvo (MEMI) - Year 2011, Vol 18, Issue 1
Abstract
This paper deals with the structural stability of an austenitic stainless steel with high nitrogen content. The investigated steel was heat treated at 800°C using different annealing times. Investigation was carried out using light microscopy, transmission electron microscopy and thermodynamic calculations. Three phases were identified by electron diffraction: Cr[sub]2[/sub]N, σ – phase and M[sub]23[/sub]C[sub]6[/sub]. The thermodynamic prediction is in good agreement with the experimental result. The only is the M[sub]23[/sub]C[sub]6 [/sub]carbide phase which is not thermodynamically predicted. Cr[sub]2[/sub]N is the majority secondary phase and occurs in the form of discrete particles or cells (lamellas of Cr[sub]2[/sub]N and austenite).
Authors and Affiliations
Jana Bakajová, Mária Dománková, Peter Gogola
Keywords
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