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Volume 24 Issue 1
Jan.  2017
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文章导航 >  矿物冶金与材料学报（英文）  > 2017  >  24(1): 91-101
R. Ahmad, M. B. A. Asmael, N. R. Shahizan, and S. Gandouz, Reduction in secondary dendrite arm spacing in cast eutectic Al-Si piston alloys by cerium addition, Int. J. Miner. Metall. Mater., 24(2017), No. 1, pp. 91-101. https://doi.org/10.1007/s12613-017-1382-9
Cite this article as:
R. Ahmad, M. B. A. Asmael, N. R. Shahizan, and S. Gandouz, Reduction in secondary dendrite arm spacing in cast eutectic Al-Si piston alloys by cerium addition, Int. J. Miner. Metall. Mater., 24(2017), No. 1, pp. 91-101. https://doi.org/10.1007/s12613-017-1382-9
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Reduction in secondary dendrite arm spacing in cast eutectic Al-Si piston alloys by cerium addition

  • Department of Manufacturing and Industrial Engineering, Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Parit Raja, 86400 Batu Pahat, Johor, Malaysia

  • 通讯作者:

    R. Ahmad    E-mail: roslee@uthm.edu.my

  • The effects of Ce on the secondary dendrite arm spacing (SDAS) and mechanical behavior of Al-Si-Cu-Mg alloys were investigated. The reduction of SDAS at different Ce concentrations was evaluated in a directional solidification experiment via computer-aided cooling curve thermal analysis (CA CCTA). -The results showed that 0.1wt%-1.0wt% Ce addition resulted in a rapid solidification time, △TS, and low solidification temperature, △TS, whereas 0.1wt% Ce resulted in a fast solidification time, △ta-Al, of the α-Al phase. Furthermore, Ce addition refined the SDAS, which was reduced to approximately 36%. The mechanical properties of the alloys with and without Ce were investigated using tensile and hardness tests. The quality index (Q) and ultimate tensile strength of (UTS) Al-Si-Cu-Mg alloys significantly improved with the addition of 0.1wt% Ce. Moreover, the base alloy hardness was improved with increasing Ce concentration.
    • Research Article

    Reduction in secondary dendrite arm spacing in cast eutectic Al-Si piston alloys by cerium addition

    + Author Affiliations
      Abstract
    • The effects of Ce on the secondary dendrite arm spacing (SDAS) and mechanical behavior of Al-Si-Cu-Mg alloys were investigated. The reduction of SDAS at different Ce concentrations was evaluated in a directional solidification experiment via computer-aided cooling curve thermal analysis (CA CCTA). -The results showed that 0.1wt%-1.0wt% Ce addition resulted in a rapid solidification time, △TS, and low solidification temperature, △TS, whereas 0.1wt% Ce resulted in a fast solidification time, △ta-Al, of the α-Al phase. Furthermore, Ce addition refined the SDAS, which was reduced to approximately 36%. The mechanical properties of the alloys with and without Ce were investigated using tensile and hardness tests. The quality index (Q) and ultimate tensile strength of (UTS) Al-Si-Cu-Mg alloys significantly improved with the addition of 0.1wt% Ce. Moreover, the base alloy hardness was improved with increasing Ce concentration.
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