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Nondestructive Quantitative Evaluation of Porosity Volume Distribution in Aluminum Alloy Die Castings by Fractal Analysis

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Abstract

The nondestructive and three-dimensional quantitative evaluation of porosity in aluminum alloy die castings is proposed to identify whether the predominant cause of pore formation is shrinkage or entrapped gas. The validity of this method of evaluation was shown by comparing two different regions with different ratios of pores formed by shrinkage and gas. It was shown that the proposed evaluation can be used as a quantitative indication of porosity.

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Authors and Affiliations

  1. Faculty of Engineering, Gunma University, Kiryuu, 376-8515, Japan

    Yoshihiko Hangai (Assistant Professor) & Shota Maruhashi (Undergraduate Student)

  2. Gundai Co., Ltd., Isesaki, 372-0854, Japan

    Soichiro Kitahara (Chief Executive)

  3. Faculty of Engineering, University of Fukui, Fukui, 910-8507, Japan

    Osamu Kuwazuru (Assistant Professor)

  4. Institute of Industrial Science, The University of Tokyo, Tokyo, 153-8505, Japan

    Nobuhiro Yoshikawa (Professor)

Authors
  1. Yoshihiko Hangai
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  2. Shota Maruhashi
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  3. Soichiro Kitahara
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  4. Osamu Kuwazuru
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  5. Nobuhiro Yoshikawa
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Corresponding author

Correspondence to Yoshihiko Hangai.

Additional information

Manuscript submitted May 28, 2009.

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Hangai, Y., Maruhashi, S., Kitahara, S. et al. Nondestructive Quantitative Evaluation of Porosity Volume Distribution in Aluminum Alloy Die Castings by Fractal Analysis. Metall Mater Trans A 40, 2789–2793 (2009). https://doi.org/10.1007/s11661-009-0009-9

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  • DOI: https://doi.org/10.1007/s11661-009-0009-9

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