Sintering behavior of Lanthana-bearing nanostructured ferritic steel consolidated via spark plasma sintering
Abstract
Elemental powder mixture of Fe–14Cr–1Ti–0.3Mo–0.5La2O3 (wt%) composition is mechanically alloyed for different milling durations (5, 10 and 20 h) and subsequently consolidated via spark plasma sintering under vacuum at 950 °C for 7 min. The effects of milling time on the densification behavior and density/microhardness are studied. The sintering activation energy is found to be close to that of grain boundary diffusion. The bimodal grain structure created in the milled and sintered material is found to be a result of milling and not of sintering alone. The oxide particle diameter varies between 2 and 70 nm. As a result, faceted precipitates smaller than 10 nm in diameter are found to be mostly La–Ti–Cr-enriched complex oxides that restrict further recrystallization and related phenomena.
- Authors:
-
- Univ. of Idaho, Moscow, ID (United States); Center for Advanced Energy Studies (CAES), Idaho Falls, ID (United States)
- Boise State Univ., Boise, ID (United States); Center for Advanced Energy Studies (CAES), Idaho Falls, ID (United States)
- Publication Date:
- Research Org.:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1294356
- Report Number(s):
- INL/JOU-13-30950
Journal ID: ISSN 1438-1656
- Grant/Contract Number:
- AC07-05ID14517
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Advanced Engineering Materials
- Additional Journal Information:
- Journal Volume: 18; Journal Issue: 2; Journal ID: ISSN 1438-1656
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; mechanical alloying; spark plasma sintering; heterogeneous microstructure; nanostructured ferritic steel; lanthanum oxide
Citation Formats
Pasebani, Somayeh, Charit, Indrajit, Butt, Darryl P., Cole, James I., Wu, Yaqiao, and Burns, Jatuporn. Sintering behavior of Lanthana-bearing nanostructured ferritic steel consolidated via spark plasma sintering. United States: N. p., 2015.
Web. doi:10.1002/adem.201500294.
Pasebani, Somayeh, Charit, Indrajit, Butt, Darryl P., Cole, James I., Wu, Yaqiao, & Burns, Jatuporn. Sintering behavior of Lanthana-bearing nanostructured ferritic steel consolidated via spark plasma sintering. United States. https://doi.org/10.1002/adem.201500294
Pasebani, Somayeh, Charit, Indrajit, Butt, Darryl P., Cole, James I., Wu, Yaqiao, and Burns, Jatuporn. Mon .
"Sintering behavior of Lanthana-bearing nanostructured ferritic steel consolidated via spark plasma sintering". United States. https://doi.org/10.1002/adem.201500294. https://www.osti.gov/servlets/purl/1294356.
@article{osti_1294356,
title = {Sintering behavior of Lanthana-bearing nanostructured ferritic steel consolidated via spark plasma sintering},
author = {Pasebani, Somayeh and Charit, Indrajit and Butt, Darryl P. and Cole, James I. and Wu, Yaqiao and Burns, Jatuporn},
abstractNote = {Elemental powder mixture of Fe–14Cr–1Ti–0.3Mo–0.5La2O3 (wt%) composition is mechanically alloyed for different milling durations (5, 10 and 20 h) and subsequently consolidated via spark plasma sintering under vacuum at 950 °C for 7 min. The effects of milling time on the densification behavior and density/microhardness are studied. The sintering activation energy is found to be close to that of grain boundary diffusion. The bimodal grain structure created in the milled and sintered material is found to be a result of milling and not of sintering alone. The oxide particle diameter varies between 2 and 70 nm. As a result, faceted precipitates smaller than 10 nm in diameter are found to be mostly La–Ti–Cr-enriched complex oxides that restrict further recrystallization and related phenomena.},
doi = {10.1002/adem.201500294},
journal = {Advanced Engineering Materials},
number = 2,
volume = 18,
place = {United States},
year = {Mon Aug 03 00:00:00 EDT 2015},
month = {Mon Aug 03 00:00:00 EDT 2015}
}
Web of Science
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Works referencing / citing this record:
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