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Validation of Predicted Residual Stresses within Direct Chill Cast Magnesium Alloy Slab

  • Symposium: Neutron and X-Ray Studies of Advanced Materials IV
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Abstract

A significant level of cold cracking has been observed within direct chill (DC) cast, high-strength magnesium alloy Elektron WE43. These cracks have been attributed to the formation of significant residual stresses during casting. A finite-element modeling (FEM) code, which is called ALSIM, has been used to predict the residual stress within the DC-cast slab. Verification of the predicted residual stress field within an 870 × 315-mm sized slab has been carried out using neutron diffraction measurements. Given that measurements in such large-scale components using diffraction measurements are particularly challenging and expensive, the efficient use of neutron diffraction measurements is emphasized. This has included the use of sectioning, allowing the residual stress within the slab to be mapped in detail.

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Acknowledgments

The authors are grateful to T. Hill and Dr. K.B. Chong for assistance with diffraction measurements. The experiment on ENGIN-X at the ISIS Pulsed Neutron and Muon Source was supported by a beam time allocation from the Science and Technology Facilities Council. Research was sponsored by ARL and was accomplished under Cooperative Agreement W911NF-07-2-0073. The views and conclusions made in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of ARL or the U.S. Government. The U.S. Government is authorized to reproduce and distribute reprints for government purposes notwithstanding any copyright notation hereon.

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Authors and Affiliations

  1. Magnesium Elektron, Manchester, M27 8LJ, U.K.

    Mark Turski (Senior Metallurgist, Visiting Academic)

  2. Materials Engineering, The Open University, Milton Keynes, MK7 6AA, U.K.

    Mark Turski (Senior Metallurgist, Visiting Academic)

  3. The Bragg Institute, Australian Nuclear Science and Technology Organisation (ANSTO), Menei, NSW, 2234, Australia

    Anna Paradowska (Instrument Scientist, Visiting Scientist)

  4. ISIS Facility, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Didcot, Oxfordshire, OX11 0QX, U.K.

    Anna Paradowska (Instrument Scientist, Visiting Scientist) & Shu-Yan Zhang (Instrument Scientist)

  5. Department of Process and Fluid Flow Technology, Institute for Energy Technology, N-2027, Kjeller, Norway

    Dag Mortensen (Principal Research Scientist) & Hallvard Fjaer (Principal Research Scientist)

  6. Grandfield Technology Pty Ltd, PO BOX 5110, Moreland West, VIC, 3055, Australia

    John Grandfield (Director, Adjunct Professor)

  7. Swinburne University of Technology, Faculty of Engineering and Industrial Science, Hawthorn, VIC, 3122, Australia

    John Grandfield (Director, Adjunct Professor)

  8. Magnesium Elektron North America, Madison, IL, 62060, USA

    Bruce Davis (Research and Development Program Manager) & Rick DeLorme (Technical Manager)

Authors
  1. Mark Turski
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  2. Anna Paradowska
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  3. Shu-Yan Zhang
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  4. Dag Mortensen
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  5. Hallvard Fjaer
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  6. John Grandfield
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  7. Bruce Davis
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  8. Rick DeLorme
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Corresponding author

Correspondence to Mark Turski.

Additional information

Manuscript submitted February 9, 2011.

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Turski, M., Paradowska, A., Zhang, SY. et al. Validation of Predicted Residual Stresses within Direct Chill Cast Magnesium Alloy Slab. Metall Mater Trans A 43, 1547–1557 (2012). https://doi.org/10.1007/s11661-011-1077-1

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  • DOI: https://doi.org/10.1007/s11661-011-1077-1

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