Journal
SCRIPTA MATERIALIA
Volume 127, Issue -, Pages 45-48Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2016.09.004
Keywords
Stainless steel; Isothermal heat treatment; Phase boundary structure; Carbides; Nitrides
Categories
Funding
- EPSRC [EP/M50726X/1] Funding Source: UKRI
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In super duplex stainless steel, austenite-ferrite boundaries are preferential sites for the precipitation of chromium nitride (Cr2N) during heat treatment. In this study, we observed a large number of Cr2N rods were continuously lined up on a thin lamella of M23C6 of 20 nm width along an austenite-ferrite boundary. This observation indicates that M23C6 carbides at the boundary play a significant role in promoting the formation of Cr2N rods. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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