Determining Casting Defects in Thixomolding Mg Casting Part by Computed Tomography

  • Jiehua LiEmail author
  • Bernd Oberdorfer
  • Peter Schumacher
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


A quantitative analysis on the casting defects is of great necessity to further improve the mechanical properties of high-performance alloys, in particular dynamic fatigue properties. Computed tomography (CT) is frequently utilized to determine the casting defects of casting parts and thereby evaluate their casting qualities. In this contribution, one Mg casting part (AZ91D, Mg–9Al–1Zn) produced by thixomolding was investigated by computed tomography. No significant casting defect was observed, strongly indicating that thixomolding could produce high-quality Mg casting parts. Furthermore, newly developed reconstruction software developed in Austria (VrVia GmbH) was used to obtain more details from the same casting part. This investigation demonstrates that computed tomography is an efficient method to determine casting defects in near-net-shape casting parts.


Mg alloy Thixomolding Computed tomography Casting defects 


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Jiehua Li
    • 1
    Email author
  • Bernd Oberdorfer
    • 2
  • Peter Schumacher
    • 1
    • 2
  1. 1.Institute of Casting Research, Montanuniversität LeobenLeobenAustria
  2. 2.Austrian Foundry Research InstituteLeobenAustria

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