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The Effect of Deformation Ratio and Heat Treatment Time on the Microstructure and Mechanical Properties of A356 Aluminium Alloy During SIMA Process

Received: 30 May 2017     Accepted: 4 July 2017     Published: 27 July 2017
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Abstract

The influence of Strain Induced Melt Activated (SIMA) parameters on the globularization of α-Al and microstructure in A356 aluminium alloy were investigated in the present study. After production of samples using conventional permanent mold casting and cold rolling at various reduction, they were heat treated at 590°C for different holding time to spherodize the microstructure. The results indicated that, the grains became smaller, more spherical and having a homogenous distribution by increasing the deformation ratio. Increasing the holding time in heat treatment results the growth of globular grains. The necessary strain for recrystallization is about 15% and the optimum condition was achieved in the samples were 15% rolled and heat treated for 15 minutes at semi-solid temperature, regarding the maximum shape factor and minimum globular grains size. Further increasing in holding time is responsible for grain growth and hardness decline.

Published in International Journal of Mineral Processing and Extractive Metallurgy (Volume 2, Issue 3)
DOI 10.11648/j.ijmpem.20170203.11
Page(s) 28-33
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

A356 Aluminium Alloy, Semi Solid Processing, SIMA, Globular Structure, Cold Work

References
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    Mahdi Amne Elahi, Hossein Gheisari, Saeed Shabestari. (2017). The Effect of Deformation Ratio and Heat Treatment Time on the Microstructure and Mechanical Properties of A356 Aluminium Alloy During SIMA Process. International Journal of Mineral Processing and Extractive Metallurgy, 2(3), 28-33. https://doi.org/10.11648/j.ijmpem.20170203.11

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    ACS Style

    Mahdi Amne Elahi; Hossein Gheisari; Saeed Shabestari. The Effect of Deformation Ratio and Heat Treatment Time on the Microstructure and Mechanical Properties of A356 Aluminium Alloy During SIMA Process. Int. J. Miner. Process. Extr. Metall. 2017, 2(3), 28-33. doi: 10.11648/j.ijmpem.20170203.11

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    AMA Style

    Mahdi Amne Elahi, Hossein Gheisari, Saeed Shabestari. The Effect of Deformation Ratio and Heat Treatment Time on the Microstructure and Mechanical Properties of A356 Aluminium Alloy During SIMA Process. Int J Miner Process Extr Metall. 2017;2(3):28-33. doi: 10.11648/j.ijmpem.20170203.11

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  • @article{10.11648/j.ijmpem.20170203.11,
      author = {Mahdi Amne Elahi and Hossein Gheisari and Saeed Shabestari},
      title = {The Effect of Deformation Ratio and Heat Treatment Time on the Microstructure and Mechanical Properties of A356 Aluminium Alloy During SIMA Process},
      journal = {International Journal of Mineral Processing and Extractive Metallurgy},
      volume = {2},
      number = {3},
      pages = {28-33},
      doi = {10.11648/j.ijmpem.20170203.11},
      url = {https://doi.org/10.11648/j.ijmpem.20170203.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmpem.20170203.11},
      abstract = {The influence of Strain Induced Melt Activated (SIMA) parameters on the globularization of α-Al and microstructure in A356 aluminium alloy were investigated in the present study. After production of samples using conventional permanent mold casting and cold rolling at various reduction, they were heat treated at 590°C for different holding time to spherodize the microstructure. The results indicated that, the grains became smaller, more spherical and having a homogenous distribution by increasing the deformation ratio. Increasing the holding time in heat treatment results the growth of globular grains. The necessary strain for recrystallization is about 15% and the optimum condition was achieved in the samples were 15% rolled and heat treated for 15 minutes at semi-solid temperature, regarding the maximum shape factor and minimum globular grains size. Further increasing in holding time is responsible for grain growth and hardness decline.},
     year = {2017}
    }
    

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    T1  - The Effect of Deformation Ratio and Heat Treatment Time on the Microstructure and Mechanical Properties of A356 Aluminium Alloy During SIMA Process
    AU  - Mahdi Amne Elahi
    AU  - Hossein Gheisari
    AU  - Saeed Shabestari
    Y1  - 2017/07/27
    PY  - 2017
    N1  - https://doi.org/10.11648/j.ijmpem.20170203.11
    DO  - 10.11648/j.ijmpem.20170203.11
    T2  - International Journal of Mineral Processing and Extractive Metallurgy
    JF  - International Journal of Mineral Processing and Extractive Metallurgy
    JO  - International Journal of Mineral Processing and Extractive Metallurgy
    SP  - 28
    EP  - 33
    PB  - Science Publishing Group
    SN  - 2575-1859
    UR  - https://doi.org/10.11648/j.ijmpem.20170203.11
    AB  - The influence of Strain Induced Melt Activated (SIMA) parameters on the globularization of α-Al and microstructure in A356 aluminium alloy were investigated in the present study. After production of samples using conventional permanent mold casting and cold rolling at various reduction, they were heat treated at 590°C for different holding time to spherodize the microstructure. The results indicated that, the grains became smaller, more spherical and having a homogenous distribution by increasing the deformation ratio. Increasing the holding time in heat treatment results the growth of globular grains. The necessary strain for recrystallization is about 15% and the optimum condition was achieved in the samples were 15% rolled and heat treated for 15 minutes at semi-solid temperature, regarding the maximum shape factor and minimum globular grains size. Further increasing in holding time is responsible for grain growth and hardness decline.
    VL  - 2
    IS  - 3
    ER  - 

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Author Information
  • Center of Excellence for High Strength Alloys Technology (CEHSAT), School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran

  • Center of Excellence for High Strength Alloys Technology (CEHSAT), School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran

  • Center of Excellence for High Strength Alloys Technology (CEHSAT), School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran, Iran

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