Effect of Cr and Zr addition on oxidation resistance of nanocrystalline Fe-Cr-Ni-Zr

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dc.contributor.authorVenkataraman, MBen_AU
dc.contributor.authorSingh, Ren_AU
dc.contributor.authorAtanacio, AJen_AU
dc.contributor.authorFu, Jen_AU
dc.contributor.authorKoch, CCen_AU
dc.date.accessioned2020-12-21T04:24:56Zen_AU
dc.date.available2020-12-21T04:24:56Zen_AU
dc.date.issued2011-11-20en_AU
dc.date.statistics2020-12-18en_AU
dc.descriptionNot available online.en_AU
dc.description.abstractThe effect of nanocrystalline grain size and alloying additions of Cr, Ni and Zr on the oxidation resistance of nanocrystalline Fe-based alloys has been investigated. Bulk nanocrystalline alloy pellets, having composition Fe-xCr-5Ni-2Zr and Fe-xCr-5Ni {x = 7, 10} were prepared by a mechanical alloying and compaction route. A novel multi-step hot-compaction process has been investigated for the consolidation of powders into close-to-100% dense nc pellets (grain size 60-70 nm). The pellets showed high hardness (7.5-8.0 GPa) and reasonable ductility under shear stress condition. The high temperature oxidation resistance of these alloys, at 550 °C, has been compared with conventional microcrystalline stainless steel alloy. Nanocrystalline grain size was found to improve the oxidation resistance particularly in the alloys with lower Cr content. This behaviour is attributed to the greater grain boundary diffusivity of Cr in the nanocrystalline alloys. Zr addition was found to improve the thermal stability and insignificantly influence the oxidation resistance. © 2011 Australasian Corrosion Associationen_AU
dc.description.sponsorshipAustralasian Corrosion Associationen_AU
dc.identifier.booktitleProceedings of the 18th International Corrosion Congress 2011, Volume 2, Australasian Corrosion Association, Perth, Western Australia, 20-24 November 2011en_AU
dc.identifier.citationVenkataraman, M. B., Singh, R., Atanacio, A., Fu, J., & Koch, C. (2011). Effect of Cr and Zr addition on oxidation resistance of nanocrystalline Fe-Cr-Ni-Zr. Paper presented to the 18th International Corrosion Congress 2011, Volume 2, Australasian Corrosion Association, Perth, Western Australia, 20-24 November 2011. In: Holloway, L. (ed), Proceedings of the 18th International Corrosion Congress 2011, Volume 2, Australasian Corrosion Association, Perth, Western Australia, 20-24 November, (pp. 895-902). Retrieved from: http://www.proceedings.com/13644.htmlen_AU
dc.identifier.conferenceenddate24 November 2011en_AU
dc.identifier.conferencename18th International Corrosion Congress 2011en_AU
dc.identifier.conferenceplacePerth, Australiaen_AU
dc.identifier.conferencestartdate20 November 2011en_AU
dc.identifier.editorsHolloway, L.en_AU
dc.identifier.isbn9781618393630en_AU
dc.identifier.pagination895-902en_AU
dc.identifier.urihttp://www.proceedings.com/13644.htmlen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10131en_AU
dc.identifier.volume2en_AU
dc.language.isoenen_AU
dc.publisherCurran Associates, Inc.en_AU
dc.subjectMetallurgical effectsen_AU
dc.subjectNanocrystalsen_AU
dc.subjectIron alloysen_AU
dc.subjectChromiumen_AU
dc.subjectOxidationen_AU
dc.subjectMass spectroscopyen_AU
dc.subjectGrain boundariesen_AU
dc.subjectGrain sizeen_AU
dc.subjectHardnessen_AU
dc.titleEffect of Cr and Zr addition on oxidation resistance of nanocrystalline Fe-Cr-Ni-Zren_AU
dc.typeConference Paperen_AU
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