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08-10-2018 | Metals

Influence of severe plastic deformation in phase transformation of superduplex stainless steels

Authors: Núria Llorca-Isern, Alisiya Biserova-Tahchieva, Isabel Lopez-Jimenez, Irene Calliari, Jose Maria Cabrera, Antoni Roca

Published in: Journal of Materials Science | Issue 3/2019

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Abstract

Duplex and superduplex stainless steels are characterised by high corrosion resistance and high mechanical strength. However, these steels can suffer formation of secondary brittle phases when they reach temperatures between 600 and 950 °C, which can lead to the catastrophic service failure of components. In order to understand the influence of the mechanical history of the steel part, equal-channel angular pressing was applied followed by different thermal treatments. Microstructural characterisation was carried out on the ECAPed samples before and after thermal treatment. The analysis of the hardness evolution of the same samples was also evaluated.

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Title: Influence of severe plastic deformation in phase transformation of superduplex stainless steels
Authors: Núria Llorca-Isern
Alisiya Biserova-Tahchieva
Isabel Lopez-Jimenez
Irene Calliari
Jose Maria Cabrera
Antoni Roca
Publication date: 08-10-2018
Publisher: Springer US
Published in: Journal of Materials Science / Issue 3/2019
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-018-2984-y

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