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Forming nanostructured hypereutectic aluminum via high-velocity oxyfuel spray deposition

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Abstract

Al-Si alloys are widely used in aerospace and automobile industries due to their high strength-to-weight ratio and superior wear and corrosion resistance. Increasing the percentage of silicon in these alloys improves their wear resistance and strength considerably, but impairs their ductility. This problem can be overcome by refining the microstructure of hypereutectic alloys by varying the processing conditions. High velocity oxyfuel (HVOF) spray deposition is an efficient process to deposit nanostructured Al-Si coatings and near-net-shape spray-formed structures. This article deals with the microstructural evolution in an Al-21wt.% Si alloy processed through HVOF spraying.

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Author information

Authors and Affiliations

  1. Department of Mechanical & Materials Engineering, Florida International University, Miami, Florida

    A. Agarwal (an assistant professor)

  2. Plasma Processes, Huntsville, Alabama

    T. McKechnie (president)

Authors
  1. T. Laha
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  2. A. Agarwal
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  3. T. McKechnie
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Additional information

T. Laha is pursuing his doctoral degree in the same department.

For more information, contact A. Agarwal, Florida International University, 10555 West Flagler Street, CEAS 3464, Department of Mechanical and Materials Engineering, Miami, Florida 33174; agarwala@fiu.edu.

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Laha, T., Agarwal, A. & McKechnie, T. Forming nanostructured hypereutectic aluminum via high-velocity oxyfuel spray deposition. JOM 56, 54–56 (2004). https://doi.org/10.1007/s11837-004-0274-4

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  • DOI: https://doi.org/10.1007/s11837-004-0274-4

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