RT Journal Article
T1 Capability of mechanical alloying and SPS technique to develop nanostructured high Cr, Al alloyed ODS steels
A1 García Rodríguez, Nerea
A1 Campos Gómez, Mónica
A1 Torralba Castelló, José Manuel
A1 Berger, M.H.
A1 Bienvenu, Y.
AB Oxide dispersion strengthened (ODS) Fe alloys were produced by mechanical alloying (MA) with the aim of developing a nanostructured powder. The milled powders were consolidated by spark plasma sintering (SPS). Two prealloyed high chromium stainless steels (Fe-14Cr-5Al-3W) and (Fe-20Cr-5Alz3W) with additions of Y2O3 and Ti powders are densified to evaluate the influence of the powder composition on mechanical properties. The microstructure was characterised by scanning electron microscope (SEM) and electron backscattering diffraction (EBSD) was used to analyse grain orientation, grain boundary geometries and distribution grain size. Transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM) equipped with energy dispersive X-ray spectrometer (EDX) were used to observe the nanostructure of ODS alloys and especially to observe and analyse the nanoprecipitates. Vickers microhardness and tensile tests (in situ and ex situ) have been performed on the ODS alloys developed in this work.
PB Taylor and Francis
SN 0267-0836
YR 2014
FD 2014-07-01
LK https://hdl.handle.net/10016/36352
UL https://hdl.handle.net/10016/36352
LA eng
NO This paper is part of a special issue on High strength ODS steels: fundamentals and properties
NO This investigation has been supported by the Ministerio de Ciencia e Innovación de España through the Project ENE2009-13766-C04-03. The authors would like tothank the Dr Fabrice Gaslain for its contribution duringthe of EBSD analysis.
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RD 27 jul. 2024