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Journal of Materials Science

, Volume 46, Issue 16, pp 5454–5459 | Cite as

Multiscale characterization of nanostructured Al–Si–Zr alloys obtained by rapid solidification method

  • Mariusz AndrzejczukEmail author
  • Małgorzata Lewandowska
  • Jerzy Latuch
  • Krzysztof Jan Kurzydłowski
Article

Abstract

Properties of engineering metallic alloys (e.g., fracture toughness, corrosion resistance) are often limited by the presence of primary intermetallic particles which form during conventional solidification. Rapid solidification brings about much more homogenous amorphous and/or nanocrystalline structure with reduced density of primary particles. Rapidly solidified thin ribbons obtained by melt spinning are usually considered as intrinsically homogenous. However, due to different cooling conditions at the wheel surface and on the side exposed to the ambient environment, structure of such ribbons may vary significantly across its thickness. The materials studied in this study were 30–40 μm thickness ribbons of nanocrystalline hyper- and hypo-eutectic Al–Si–Zr alloys produced by melt-spinning method. Transmission electron microscopy and high resolution scanning transmission electron microscopy were used to characterize the structure homogeneity across the ribbons. Thin foils for transmission observations were prepared by focused ion beam system. Microstructural observations confirmed nanocrystalline character of Al–Si–Zr alloys. However, these observations revealed inhomogeneity of the structure across the ribbon width.

Keywords

Rapid Solidification Silicon Phase Ribbon Surface Wheel Side Average Equivalent Diameter 

Notes

Acknowledgements

This study was carried out within a NANOMET project financed under the European Funds for Regional Development (Contract No. POIG.01.03.01-00-015/08).

Open Access

This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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Copyright information

© The Author(s) 2011

Open AccessThis is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License (https://doi.org/creativecommons.org/licenses/by-nc/2.0), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

Authors and Affiliations

  • Mariusz Andrzejczuk
    • 1
    Email author
  • Małgorzata Lewandowska
    • 1
  • Jerzy Latuch
    • 1
  • Krzysztof Jan Kurzydłowski
    • 1
  1. 1.Faculty of Materials Science and EngineeringWarsaw University of TechnologyWarszawaPoland

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