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Magnesium alloy ingots: Chemical and metallographic analyses

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  • Automotive Light Metals
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Abstract

The quality of a magnesium die casting is likely dependent on the quality of the feed stockingot material. Therefore, both Daimler-Chrysler and General Motors have established quality assurance measures that include analysis of magnesium ingots. These processes include chemical analysis, corrosion testing, fast neutron activation analysis, and metallography. Optical emission spectroscopy, inductively coupled plasma spectroscopy, and gravimetric analysis are several methods for determining the chemical composition of the material. Fast neutron activation analysis, image analysis and energy dispersive X-ray spectroscopy are used to quantify ingot cleanliness. These experimental techniques are described and discussed in this paper, and example case studies are presented for illustration.

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References

  1. J.M. Tartaglia, R.E. Swartz, and R.L. Bentz, Jr.,, “Chemical and Metallographic Analyses of Magnesium Alloy Ingots,” (Paper presented at the ASM International Materials Solutions conference, St. Louis, MO, 10 October 2000).

  2. John M. Tartaglia and John C. Grebetz, “Observations of Intermetallic Particle and Inclusion Distributions in Magnesium Alloys,” Magnesium Technology 2000 (Warrendale, PA: TMS, 2000), pp. 113–121.

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  3. Per Bakke, Carlton D. Fuerst, and Hakon Westengen, “Solidification Induced Inhomogenities in Magnesium — Aluminum Alloy AZ91 Ingots,” Magnesium Technology 2000 (Warrendale, PA: TMS, 2000), pp. 201–210.

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  4. John C. Grebetz and Andrew G. Haerle, “Measuring the Cleanliness of Recycled Magnesium for Automotive Applications: A Detailed Examination of the Fracture Brightness Technique,” Light Metal Age (August 1997), pp. 60–69.

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Authors and Affiliations

  1. Climax Research Services, USA

    John M. Tartaglia, Robert E. Swartz, Rodney L. Bentz Jr. & Jane H. Howard (a former engineering associate)

Authors
  1. John M. Tartaglia
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  2. Robert E. Swartz
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  3. Rodney L. Bentz Jr.
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  4. Jane H. Howard
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Additional information

For more information, contact J.M. Tartaglia, Climax Research Services, 51229 Century Court, Wixom, MI 48393-2074; (248) 960-4900 ext. 329; e-mail tartagliaj@climaxresearch.com.

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Tartaglia, J.M., Swartz, R.E., Bentz, R.L. et al. Magnesium alloy ingots: Chemical and metallographic analyses. JOM 53, 16–19 (2001). https://doi.org/10.1007/s11837-001-0187-4

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  • DOI: https://doi.org/10.1007/s11837-001-0187-4

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