International Journal of Materials Science and Applications

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Effect of Lead Additions on Microstructure and Casting Properties of AZ91 Magnesium Alloy

Received: Nov. 07, 2017    Accepted: Nov. 24, 2017    Published: Jan. 02, 2018
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Abstract

In this study, the effect of Pb element addition varied between 0.2 - 0.4 wt.% on the microstructure and casting properties of AZ91 magnesium alloy were investigated. The microstructural results showed that as increasing Pb additions into the AZ91 alloy, the grains and the Mg17Al12 intermetallic phase becomes thinner. When examining the effect on casting properties; It was observed that the fluidity of AZ91 alloy increased as the increasing of Pb additions. In the hot tear tests two different mold systems were used. Hot tearing were observed in the longest section in the tests using "the mold same diameter, different lengths" and when the "the mold different diameter, same lengths" were used, hot tears were observed in all of the molds with diameters of 6, 8, 10 mm. Hot tearings were observed in 0.2 wt.% and 0.3 wt.% Pb additions, while hot tearing was not observed when this ratio increased to 0.4% for the 12 mm diameter test specimens. There was also not hot tearing were observed in any sample when the sample diameter was 16 mm.

DOI 10.11648/j.ijmsa.20180701.13
Published in International Journal of Materials Science and Applications ( Volume 7, Issue 1, January 2018 )
Page(s) 13-17
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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), 2024. Published by Science Publishing Group

Keywords

Magnesium, AZ91, Fluidity, Hot Tearing

References
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    Erkan Koc, Mehmet Unal, Yunus Turen, Halil Ahmet Goren, Ercan Candan. (2018). Effect of Lead Additions on Microstructure and Casting Properties of AZ91 Magnesium Alloy. International Journal of Materials Science and Applications, 7(1), 13-17. https://doi.org/10.11648/j.ijmsa.20180701.13

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    ACS Style

    Erkan Koc; Mehmet Unal; Yunus Turen; Halil Ahmet Goren; Ercan Candan. Effect of Lead Additions on Microstructure and Casting Properties of AZ91 Magnesium Alloy. Int. J. Mater. Sci. Appl. 2018, 7(1), 13-17. doi: 10.11648/j.ijmsa.20180701.13

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    AMA Style

    Erkan Koc, Mehmet Unal, Yunus Turen, Halil Ahmet Goren, Ercan Candan. Effect of Lead Additions on Microstructure and Casting Properties of AZ91 Magnesium Alloy. Int J Mater Sci Appl. 2018;7(1):13-17. doi: 10.11648/j.ijmsa.20180701.13

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  • @article{10.11648/j.ijmsa.20180701.13,
      author = {Erkan Koc and Mehmet Unal and Yunus Turen and Halil Ahmet Goren and Ercan Candan},
      title = {Effect of Lead Additions on Microstructure and Casting Properties of AZ91 Magnesium Alloy},
      journal = {International Journal of Materials Science and Applications},
      volume = {7},
      number = {1},
      pages = {13-17},
      doi = {10.11648/j.ijmsa.20180701.13},
      url = {https://doi.org/10.11648/j.ijmsa.20180701.13},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ijmsa.20180701.13},
      abstract = {In this study, the effect of Pb element addition varied between 0.2 - 0.4 wt.% on the microstructure and casting properties of AZ91 magnesium alloy were investigated. The microstructural results showed that as increasing Pb additions into the AZ91 alloy, the grains and the Mg17Al12 intermetallic phase becomes thinner. When examining the effect on casting properties; It was observed that the fluidity of AZ91 alloy increased as the increasing of Pb additions. In the hot tear tests two different mold systems were used. Hot tearing were observed in the longest section in the tests using "the mold same diameter, different lengths" and when the "the mold different diameter, same lengths" were used, hot tears were observed in all of the molds with diameters of 6, 8, 10 mm. Hot tearings were observed in 0.2 wt.% and 0.3 wt.% Pb additions, while hot tearing was not observed when this ratio increased to 0.4% for the 12 mm diameter test specimens. There was also not hot tearing were observed in any sample when the sample diameter was 16 mm.},
     year = {2018}
    }
    

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  • TY  - JOUR
    T1  - Effect of Lead Additions on Microstructure and Casting Properties of AZ91 Magnesium Alloy
    AU  - Erkan Koc
    AU  - Mehmet Unal
    AU  - Yunus Turen
    AU  - Halil Ahmet Goren
    AU  - Ercan Candan
    Y1  - 2018/01/02
    PY  - 2018
    N1  - https://doi.org/10.11648/j.ijmsa.20180701.13
    DO  - 10.11648/j.ijmsa.20180701.13
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
    SP  - 13
    EP  - 17
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20180701.13
    AB  - In this study, the effect of Pb element addition varied between 0.2 - 0.4 wt.% on the microstructure and casting properties of AZ91 magnesium alloy were investigated. The microstructural results showed that as increasing Pb additions into the AZ91 alloy, the grains and the Mg17Al12 intermetallic phase becomes thinner. When examining the effect on casting properties; It was observed that the fluidity of AZ91 alloy increased as the increasing of Pb additions. In the hot tear tests two different mold systems were used. Hot tearing were observed in the longest section in the tests using "the mold same diameter, different lengths" and when the "the mold different diameter, same lengths" were used, hot tears were observed in all of the molds with diameters of 6, 8, 10 mm. Hot tearings were observed in 0.2 wt.% and 0.3 wt.% Pb additions, while hot tearing was not observed when this ratio increased to 0.4% for the 12 mm diameter test specimens. There was also not hot tearing were observed in any sample when the sample diameter was 16 mm.
    VL  - 7
    IS  - 1
    ER  - 

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Author Information
  • Department of Metallurgy and Materials, Faculty of Engineering, Karabuk University, Karabük, Turkey

  • Department of Metal, Faculty of Technical Education, Karabuk University, Karabük, Turkey

  • Department of Metallurgy and Materials, Faculty of Engineering, Karabuk University, Karabük, Turkey

  • Mechatronics Program, Vocational School, Sinop University, Sinop, Turkey

  • Department of Mechanical and Manufacturing Engineering, Bilecik University, Bilecik, Turkey

  • Section