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Importance of chamber gas pressure on processing of Al-based metallic glasses during melt spinning

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Importance of chamber gas pressure on processing of Al-based metallic glasses during melt spinning

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dc.contributor.author Yang, Hongwang
dc.contributor.author Wang, R. C.
dc.contributor.author Yuan, X. G.
dc.contributor.author Li, R. D.
dc.contributor.author Wang, J. Q.
dc.contributor.author Tan, Ming Jen
dc.date.accessioned 2011-10-17T06:40:46Z
dc.date.available 2011-10-17T06:40:46Z
dc.date.copyright 2011
dc.date.issued 2011-10-17
dc.identifier.citation Yang, H. W., Wang, R. C., Yuan, X. G., Li, R. D., Wang, J. Q., & Tan, M. J. (2011). Importance of chamber gas pressure on processing of Al-based metallic glasses during melt spinning. Philosophical Magazine Letters, 91(10), 656-663.
dc.identifier.issn 0950-0839
dc.identifier.uri http://hdl.handle.net/10220/7287
dc.description.abstract The effect of chamber gas pressure on the amorphicity of Al85Ni5Y10 alloy was studied for the melt-spinning process. The amorphicity of as-quenched ribbons was characterized by X-ray diffraction (XRD) and differential scanning calorimetry (DSC). The chamber atmosphere pressure is crucial to the cooling rate of melt spinning. At high vacuum, at pressure less than 0.001 atm, fully crystalline fragments are obtained. Monolithic amorphous ribbons were only obtained at a gas pressure of 0.1 atm, 0.2 atm or higher. The extended contact length between ribbons and the copper wheel contributes to the high cooling rate of melt spinning in Al-based glass forming alloys; that is supported by images recorded by a high-speed camera. Higher chamber pressure increases contact length between ribbons and the wheel, which is qualitatively elucidated by Bernoulli's equation.
dc.format.extent 10 p.
dc.language.iso en
dc.relation.ispartofseries Philosophical magazine letters
dc.rights © 2011 Taylor & Francis. This is the author created version of a work that has been peer reviewed and accepted for publication by Philosophical Magazine Letters, Taylor & Francis. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [DOI: http://dx.doi.org/10.1080/09500839.2011.604356 ].
dc.subject DRNTU::Engineering::Mechanical engineering::Fluid mechanics.
dc.title Importance of chamber gas pressure on processing of Al-based metallic glasses during melt spinning
dc.type Journal Article
dc.contributor.school School of Mechanical and Aerospace Engineering
dc.identifier.doi http://dx.doi.org/10.1080/09500839.2011.604356
dc.description.version Accepted version

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