Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/201798
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Microstructural comparison of Oxide Dispersion Strengthened Fe-14Cr steels produced by HIP and SPS |
Autor: | Pazos, David; Suárez, Marta CSIC ORCID; Fernández, Adolfo CSIC ORCID; Fernández, Pilar; Iturriza, Iñigo; Ordás, Nerea | Palabras clave: | ODS steels STARS route HIP Hot deformation |
Fecha de publicación: | 2019 | Editor: | Elsevier | Citación: | Fusion Engineering and Design 146B: 2328-2333 (2019) | Resumen: | Once the feasibility of the STARS route (Surface Treatment of gas Atomized powder followed by Reactive Synthesis) has been demonstrated to produce ODS ferritic steels by internal oxidation avoiding mechanical alloying, two strategies are proposed in this work to enhance precipitation of oxide nanoparticles. Firstly, consolidation by Spark Plasma Sintering (SPS) is used to produce finer microstructures compared to HIP consolidation. SPS parameters like temperature, heating rate, pressure and time of exposure under pressure were explored, and dense samples (up to 99,5%RD) were obtained. Secondly, precipitation of nanoparticles is achieved through a combination of HIP consolidation at low temperature (700–900 °C) followed by hot deformation under the presence of metastable oxides, to increase the density of dislocations, preferential nucleation sites for the precipitation of nanometric Y-Ti-O oxides. Deformation dilatometry and plane strain compression tests were performed to simulate hot deformation under different hot rolling schedules. Total deformation, number of passes, time between passes or initial and final rolling temperatures are some of the parameters explored. Microstructural characterization by Scanning Electron Microscopy (SEM) of consolidated materials is presented. | Versión del editor: | https://doi.org/10.1016/j.fusengdes.2019.03.182 | URI: | http://hdl.handle.net/10261/201798 | DOI: | 10.1016/j.fusengdes.2019.03.182 | ISSN: | 0920-3796 |
Aparece en las colecciones: | (CINN) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 59,24 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
9
checked on 11-mar-2024
WEB OF SCIENCETM
Citations
8
checked on 24-feb-2024
Page view(s)
139
checked on 18-mar-2024
Download(s)
32
checked on 18-mar-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.