Metastable Phase Formation in Undercooled Nd-Fe-B Alloys Investigated by In Situ Diffraction Using Synchrotron Radiation

Joern Strohmenger; Thomas Volkmann; J.R. Gao; Dieter M. Herlach

doi:10.4028/www.scientific.net/MSF.508.81

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HomeMaterials Science ForumMaterials Science Forum Vol. 508Metastable Phase Formation in Undercooled Nd-Fe-B...

Metastable Phase Formation in Undercooled Nd-Fe-B Alloys Investigated by In Situ Diffraction Using Synchrotron Radiation

Abstract:

Diffraction experiments on electromagnetically levitated Nd-Fe-B alloys during solidification of the undercooled melt have been performed at the European Synchrotron Radiation Facility (ESRF). By using high intensity synchrotron radiation complete diffraction spectra could be detected within a short period of some seconds thus enabling the observation of metastable solidification products that exhibits a limited lifetime. A metastable phase that crystallizes in wide composition range and that initiates the solidification of the stable Nd2Fe14B1-phase (φ-phase) have been observed.

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Materials Science Forum (Volume 508)

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81-86

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https://doi.org/10.4028/www.scientific.net/MSF.508.81

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Online since:

March 2006

Authors:

Joern Strohmenger, Thomas Volkmann, J.R. Gao, Dieter M. Herlach

Keywords:

Electromagnetic Levitation, Metastable Phase, NdFeB, Solidification, Synchrotron Radiation (XRD), Undercooling

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