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Densification of Al 5083 Mechanically Alloyed Powder by Equal Channel Angular Pressing

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Abstract

Equal channel angular pressing (ECAP), one of the most important methods in SPD, is used for the consolidation of mechanically alloyed Al 5083 powder. This paper mainly focuses on the densification of Al 5083 mechanically alloyed powder by ECAP with and without application of back pressure up to three passes with four different routes at room temperature. Aluminum can is used to encapsulate the powder. The particle size, crystallite size, microstructure and density were evaluated by scanning electron microscope and X-ray diffraction peak profile analysis. The crystallite size was measured by Williamson Hall analysis. Density and hardness were increased with increasing number of passes and upon sintering after ECAP. Good densification as well as good powder bonding was observed after three passes of ECAP.

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Authors and Affiliations

  1. Department of Metallurgical and Materials Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India

    Kondaiah Gudimetla, B. Ravisankar & S. Kumaran

  2. School of Mechanical Engineering, SASTRA University, Thanjavur, 613401, Tamil Nadu, India

    S. Ramesh Kumar

Authors
  1. Kondaiah Gudimetla
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  2. S. Ramesh Kumar
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  3. B. Ravisankar
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  4. S. Kumaran
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Correspondence to Kondaiah Gudimetla.

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Gudimetla, K., Ramesh Kumar, S., Ravisankar, B. et al. Densification of Al 5083 Mechanically Alloyed Powder by Equal Channel Angular Pressing. Trans Indian Inst Met 68 (Suppl 2), 171–176 (2015). https://doi.org/10.1007/s12666-015-0557-1

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  • DOI: https://doi.org/10.1007/s12666-015-0557-1

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