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Precipitation in Uniaxially Stressed Mg-Nd Alloys During Creep Testing

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Abstract

The role of uniaxial stress on the precipitation behavior in a Mg-2.6wt pct Nd alloy has been examined by comparing creep-tested and isothermally aged samples using transmission electron microscopy. Both types of samples exhibited precipitation of the β′(orthorhombic) and β1(fcc) phases. During creep testing, dynamically formed β1 precipitates are aligned along favorable slip directions within the α-Mg matrix, presumably influencing the creep response of the Mg-Nd alloy.

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The authors gratefully acknowledge the Center for Advanced Research and Technology (CART) at the University of North Texas. CAST Cooperative Research Centre (CAST CRC) was established under, and is supported in part by, the Australian Government’s Cooperative Research Centres scheme. MAG would like to acknowledge the technical assistance of Mrs. M. Gershenzon and Mr. A. Yob in the HPDC of the samples used in this work.

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Authors and Affiliations

  1. Center for Advanced Research and Technology, Department of Materials Science and Engineering, University of North Texas, Denton, TX, 76207, USA

    Deep Choudhuri (Postdoctoral Research Associate), Nilesh Dendge (Graduate Student), Soumya Nag (Research Assistant Professor) & Rajarshi Banerjee (Professor)

  2. CAST CRC and CSIRO Process Science & Engineering, Clayton South MDC, Private Bag 33, Clayton, VIC, 3169, Australia

    Mark A. Gibson (Principal Research Scientist)

Authors
  1. Deep Choudhuri
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  2. Nilesh Dendge
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  3. Soumya Nag
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  4. Mark A. Gibson
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  5. Rajarshi Banerjee
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Correspondence to Rajarshi Banerjee.

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Manuscript submitted March 9, 2013.

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Choudhuri, D., Dendge, N., Nag, S. et al. Precipitation in Uniaxially Stressed Mg-Nd Alloys During Creep Testing. Metall Mater Trans A 44, 2905–2909 (2013). https://doi.org/10.1007/s11661-013-1792-x

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  • DOI: https://doi.org/10.1007/s11661-013-1792-x

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