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Magnetic, Structural and Mechanical Behavior of Transitional Bulk Nanostructured Al Alloy

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ICAA13 Pittsburgh

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Abstract

Mechanically alloyed powders synthesized by high energy rate ball milling were consolidated to produce bulk polycrystalline Al-50 at. % Fe alloy. Consolidation was achieved by cold compaction and sintering, while annealing was done to obtain an ordered structure. Annealed samples were deformed plastically by a range of compression stresses. Combination of characterization techniques like x-ray diffraction, transmission electron microscopy, vibrating sample magnetometry and Vicker’s micro hardness measurement were utilized to examine different properties. Annealed sample exhibited ordered and non magnetic phase while deformation induced samples showed simultaneous transition to both disorder and ferromagnetism, the transitional alloy at intermediate state possessed partial disorder and low magnetization. The long range order and lattice expansion contribute to the increase in magnetism at low compression stresses while it is only due to the lattice expansion at higher stresses. The order to disorder transition can be assessed by micro hardness measurement.

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Authors and Affiliations

  1. Department of Metallurgical and Materials Engineering, NITK, Surathkal, Karnataka, India, PIN-575025

    M. M. Rajath Hegde (Research Scholar) & A. O. Surendranathan (Professor)

Authors
  1. M. M. Rajath Hegde
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  2. A. O. Surendranathan
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Editor information

Editors and Affiliations

  1. Alcoa Technical Center, Pittsburgh, PA, USA

    Hasso Weiland (Technical Fellow) (Technical Fellow)

  2. Carnegie Mellon University, USA

    Anthony D. Rollett (Professor of Materials Science & Engineering, Chair of the International Committee) (Professor of Materials Science & Engineering, Chair of the International Committee)

  3. Alcoa Technical Center, USA

    William A. Cassada (Director) (Director)

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© 2012 TMS (The Minerals, Metals & Materials Society)

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Hegde, M.M.R., Surendranathan, A.O. (2012). Magnetic, Structural and Mechanical Behavior of Transitional Bulk Nanostructured Al Alloy. In: Weiland, H., Rollett, A.D., Cassada, W.A. (eds) ICAA13 Pittsburgh. Springer, Cham. https://doi.org/10.1007/978-3-319-48761-8_146

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