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Behavior of Double-Oxide Film Defects in Al-0.05 wt pct Sr Alloy
Shahid Bahonar Univ Kerman, Dept Met & Mat Sci, Mineral Ind Res Ctr, Kerman 7616914111, Iran..
Shahid Bahonar Univ Kerman, Dept Met & Mat Sci, Mineral Ind Res Ctr, Kerman 7616914111, Iran..ORCID iD: 0000-0001-9943-106X
Shahid Bahonar Univ Kerman, Dept Met & Mat Sci, Mineral Ind Res Ctr, Kerman 7616914111, Iran..ORCID iD: 0000-0003-1779-8728
2012 (English)In: Metallurgical and materials transactions. B, process metallurgy and materials processing science, ISSN 1073-5615, E-ISSN 1543-1916, Vol. 43, no 6, p. 1540-1549Article in journal (Refereed) Published
Abstract [en]

The change in the composition of oxide layers and the possibility of the formation of bonding between the two layers of a double-oxide film defect when held in an Al-0.05 wt pct Sr melt was investigated. The defect was modeled experimentally by maintaining two aluminum oxide layers in contact with one another in the liquid metal at 1023 K (750 A degrees C) for times ranging from 5 seconds to 50 hours. Any changes in the composition and morphology of these layers were studied by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The results showed that the A1(2)O(3) layers started to transform to SrO gradually from the moment that they submerged into the melt. The transformation caused the two layers to bond with each other gradually. The results illustrated that the composition of the oxide layers of a double oxide film defect submerged in Sr-treated melt is different from that of pure Al, and this might affect the mechanical properties and the behavior of the defect in the melt significantly.

Place, publisher, year, edition, pages
Springer, 2012. Vol. 43, no 6, p. 1540-1549
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Materials Engineering
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URN: urn:nbn:se:kth:diva-263996DOI: 10.1007/s11663-012-9708-5ISI: 000312342900029OAI: oai:DiVA.org:kth-263996DiVA, id: diva2:1371604
Note

QC 20191121

Available from: 2019-11-20 Created: 2019-11-20 Last updated: 2019-11-21Bibliographically approved

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Raiszadeh, RaminDoostmohammadi, Hamid
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