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Understanding Pre-solidified Grains in Structural Castings of Nemalloy HE700 Experiments

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Light Metals 2022

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

A new family of cast Al–Fe-based eutectic alloy system with Zn and Mg as strengtheners through precipitation has been developed and validated for use in structural automotive applications. High-vacuum high-pressure die casting (HV-HPDC) was used in the casting of structural plates using the Nemalloy HE700 alloy. Typically, HPDC cast components exhibit anomalously large grains in the cast microstructure termed as pre-solidified grains (PSG). These PSG did not present themselves as a critical defect until structural castings were manufactured with this process route. The PSGs in the as-cast microstructure shall be characterized through quantitative metallography and the effects of varying shot interval delays shall be presented.

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Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, McMaster University, 1280 Main St. W, Hamilton, ON, L8S 4L8, Canada

    T. Aziz, A. Phillion & S. Shankar

  2. CanmetMATERIALS, 183 Longwood Ave. S, Hamilton, ON, L8S 05, Canada

    K. Sadayappan

Authors
  1. T. Aziz
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  2. A. Phillion
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  3. S. Shankar
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  4. K. Sadayappan
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Corresponding author

Correspondence to S. Shankar .

Editor information

Editors and Affiliations

  1. Brunel University London, Middlesex, UK

    Dmitry Eskin

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© 2022 The Minerals, Metals & Materials Society

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Aziz, T., Phillion, A., Shankar, S., Sadayappan, K. (2022). Understanding Pre-solidified Grains in Structural Castings of Nemalloy HE700 Experiments. In: Eskin, D. (eds) Light Metals 2022. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-92529-1_20

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