Microstructure and mechanical properties of nano-Y<sub>2</sub>O<sub>3</sub>dispersed ferritic steel synthesized by mechanical alloying and consolidated by pulse plasma sintering

Karak, Swapan Kumar; Majumdar, Jyotsna Dutta; Łojkowski, Witold; Michalski, A.; Ciupiński, Ł.; Kurzydłowski, K. J.; Manna, I.

doi:10.1080/14786435.2011.619508

Cited by 37 publications

(9 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Composite selected for investigation contains 95 wt% Fe and 5 wt% Al 2 O 3 . Mixed powder was dry ball milled with the powder to ball ratio of 1:2 using zirconia balls as the grinding and mixing media (Karak et al 2012). Initially the powder of electrolytic iron (Fe) and aluminum oxide (Al 2 O 3 ) was milled in the ball mill for a period of 1 h. Thereafter, 1% glycerine and 1% dextrin were added to the above mixture and the whole mixture was milled for a period of 1 h again.…”

Section: Preparationmentioning

confidence: 99%

Structural and mechanical behaviour of 5% Al2O3-reinforced Fe metal matrix composites (MMCs) produced by powder metallurgy (P/M) route

et al. 2013

View full text Add to dashboard Cite

The aim of this paper is to investigate the effect of sintering temperature and time on the properties of Fe-Al 2 O 3 composite (5 wt% Al 2 O 3 ; 95 wt% Fe) prepared by powder metallurgy process. X-ray diffraction, microstructure, density, hardness and compressive strength of prepared samples have been investigated. XRD studies show the presence of Fe and Al 2 O 3 along with iron aluminate phase. Iron aluminate is formed as a result of reactive sintering between iron and alumina particles. Microstructural examination of the specimen showed a dense structure with nanosize dispersion of the reinforcement of ceramic phase. Density as well as hardness of specimens depend on the formation of iron aluminate phase, which in turn depends on sintering temperature and time.

show abstract

Section: Preparationmentioning

confidence: 99%

Structural and mechanical behaviour of 5% Al2O3-reinforced Fe metal matrix composites (MMCs) produced by powder metallurgy (P/M) route

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Karak et al [19] reported that ferritic ODS steel with compositions of Fe-13.5Cr-2.0Al-0.5Ti + 1.0Y 2 O 3 , Fe-17.5Cr-2.0Al-0.5Ti + 1.0Y 2 O 3 , Fe-21.5Cr-2.0Al-0.5Ti + 1.0Y 2 O 3 and Fe-25.5Cr-2.0Al-0.5Ti + 1.0Y 2 O 3 produced by MA and SPS exhibited 1.5-2 times greater compressive strength and improved ductility than those produced by hot press sintering and HIP, which was ascribed to the presence of 10-20 nm Y 2 Ti 2 O 7 or Y 2 O 3 nano-particles observed by TEM. Sun [20,21], Xia [22] and Gao et al [23] fabricated Fe-14Cr-…”

Section: Introductionmentioning

confidence: 98%

Processing and microstructure characterisation of oxide dispersion strengthened Fe–14Cr–0.4Ti–0.25Y2O3 ferritic steels fabricated by spark plasma sintering

Zhang

Huang

Ning

et al. 2015

Journal of Nuclear Materials

View full text Add to dashboard Cite

h i g h l i g h t sNanostructured ODS steels were successfully produced by SPS. Presence of Y 2 Ti 2 O 7 nanoclusters was confirmed by synchrotron XRD and microscopy. The chemistry of nanoclusters tested by ATP indicated they are Y-Ti-O oxides. a b s t r a c tFerritic steels strengthened with Ti-Y-O nanoclusters are leading candidates for fission and fusion reactor components. A Fe-14Cr-0.4Ti + 0.25Y 2 O 3 (14YT) alloy was fabricated by mechanical alloying and subsequently consolidated by spark plasma sintering (SPS). The densification of the 14YT alloys significantly improved with an increase in the sintering temperature. Scanning electron microscopy and electron backscatter diffraction revealed that 14YT SPS-sintered at 1150°C under 50 MPa for 5 min had a high density (99.6%), a random grain orientation and a bimodal grain size distribution (<500 nm and 1-20 lm). Synchrotron X-ray diffraction patterns showed bcc ferrite, Y 2 Ti 2 O 7 , FeO, and chromium carbides, while transmission electron microscopy and atom probe tomography showed uniformly dispersed Y 2 Ti 2 O 7 nanoclusters of <5 nm diameter and number density of 1.04 Â 10 23 m À3 . Due to the very much shorter consolidation times and lower pressures used in SPS compared with the more usual hot isostatic pressing routes, SPS is shown to be a cost-effective technique for oxide dispersion strengthened (ODS) alloy manufacturing with microstructural features consistent with the best-performing ODS alloys.

show abstract

“…However, all the three alloys show better compressive strength than the 17.5Cr ferritic ODS steel (79.0 Fe-17.5Cr-2.0Al-0.5Ti) fabricated via pulse plasma sintering and high pressure sintering by Karak et al [38]. The improvement in the compressive strength observed in the present alloys compared to the alloys developed by Karak et al [43] may be corroborated to the presence of nano complex oxides that can arrest the dislocation motion along the grain boundary during deformation.…”

Section: Hardness Of the Consolidated Ods Specimensmentioning

confidence: 48%

Vacuum Hot Pressing of Oxide Dispersion Strengthened Ferritic Stainless Steels: Effect of Al Addition on the Microstructure and Properties

Ganesan

Sellamuthu

Prashanth

2020

JMMP

View full text Add to dashboard Cite

The present article investigates the fabrication of oxide dispersion strengthened (ODS) ferritic stainless steel (FSS). Three different ODS alloys with three different Al contents were fabricated, where the presence of Al-based oxides play a crucial role in determining the size of the oxide particles. Due to Ostwald ripening, the samples with Al show coarser oxide particles compared to the alloy without Al, which hampers the density of the fabricated samples and, hence, have reduced hardness levels. The present results suggest that the composition of the oxide present in ODS plays a crucial role in determining the properties of these samples.

show abstract

Microstructure and mechanical properties of nano-Y₂O₃dispersed ferritic steel synthesized by mechanical alloying and consolidated by pulse plasma sintering

Cited by 37 publications

References 38 publications

Structural and mechanical behaviour of 5% Al2O3-reinforced Fe metal matrix composites (MMCs) produced by powder metallurgy (P/M) route

Structural and mechanical behaviour of 5% Al2O3-reinforced Fe metal matrix composites (MMCs) produced by powder metallurgy (P/M) route

Processing and microstructure characterisation of oxide dispersion strengthened Fe–14Cr–0.4Ti–0.25Y2O3 ferritic steels fabricated by spark plasma sintering

Vacuum Hot Pressing of Oxide Dispersion Strengthened Ferritic Stainless Steels: Effect of Al Addition on the Microstructure and Properties

Contact Info

Product

Resources

About

Microstructure and mechanical properties of nano-Y2O3dispersed ferritic steel synthesized by mechanical alloying and consolidated by pulse plasma sintering

Cited by 37 publications

References 38 publications

Structural and mechanical behaviour of 5% Al2O3-reinforced Fe metal matrix composites (MMCs) produced by powder metallurgy (P/M) route

Structural and mechanical behaviour of 5% Al2O3-reinforced Fe metal matrix composites (MMCs) produced by powder metallurgy (P/M) route

Processing and microstructure characterisation of oxide dispersion strengthened Fe–14Cr–0.4Ti–0.25Y2O3 ferritic steels fabricated by spark plasma sintering

Vacuum Hot Pressing of Oxide Dispersion Strengthened Ferritic Stainless Steels: Effect of Al Addition on the Microstructure and Properties

Contact Info

Product

Resources

About

Microstructure and mechanical properties of nano-Y₂O₃dispersed ferritic steel synthesized by mechanical alloying and consolidated by pulse plasma sintering