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Effects of Sb, Sr, and Bi on the material properties of cast Al-Si-Cu alloys produced through heated mold continuous casting

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Abstract

Rare earth metals can create a fine eutectic Si structure in cast Al-Si10.6-Cu2.5 (ADC12) alloys produced through heated mold continuous casting. Fine and spherical eutectic Si phases are created in the ADC12 alloys through the addition of Sr0.04, and fine lamellar eutectic Si phases are created through Sb and Bi addition. Crystal orientation on the face perpendicular to the casting direction is formed by [110]; however, this uniform formation is collapsed in the ADC12 alloy with an increasing amount of Sr addition, such as Sr > 0.04%. The shape of the eutectic Si is statically analyzed, and the effects of the eutectic Si characteristics on the mechanical properties are examined experimentally. On the one hand, the mechanical properties of the ADC12-Sr alloy increase with increasing Sr content because of the fine eutectic Si, the randomly orientated crystal formation, and so on. On the other hand, the material ductility increases in the ADC12 alloy with increasing addition of Sb and Bi elements. A high fracture strain of approximately 14% is obtained for the ADC12-Bi1.5 alloy.

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References

  1. M. Okayasu, S. Takasu and M. Mizuno, Relevance of instrumented nano-indentation for the assessment of the mechanical properties of eutectic crystals and a—Al grain in cast aluminum alloys, J. Mater. Sci., 47 (2012) 241–250.

    Article  Google Scholar 

  2. M. Zarif, B. Mckay and P. Schumacher, Study of heterogeneous nucleation of eutectic Si in high-purity Al-Si alloys with Sr addition, Matell. Mater. Trans. A, 42A (2011) 1684–1691.

    Article  Google Scholar 

  3. A. Pacz, U.S. Patent No.1, 387 900 (1921).

    Google Scholar 

  4. Z. Yin, Q. Pan, Y. Zhang and F. Jiang, Effect of minor Sc and Zr on the microstructure and mechanical properties of Al-Mg based alloys, Mater. Sci. Eng. A, 280 (2000) 151–155.

    Article  Google Scholar 

  5. C. M. Dinnis, M. O. Otte, A. K. Dahle and J. A. Taylor, The influence of strontium on porosity formation in Al-Si alloys, Metall. Mater. Trans. A, 35 (2004) 3531–3541.

    Article  Google Scholar 

  6. H. Nalae, K. Song and H. Fujii, New application of unidirectional solidification method for observation of interfacial morphology, Mater. Trans. JIM, 33 (1992) 1051–1056.

    Article  Google Scholar 

  7. J. Chang, I. Moon and C. Choi, Refinement of cast microstructure of hypereutectic Al-Si alloys through the addition of rare earth metals, J. Mater. Sci., 33 (1998) 5015–5023.

    Article  Google Scholar 

  8. S. Farahany, M. H. Idris and A. Ourdjini, Evaluations of antimony and strontium interaction in an Al-Si-Cu-Zn die cast alloy, Therm. Acta., 584 (2014) 72–78.

    Article  Google Scholar 

  9. Y. Chen, Y. Pan, T. Lu, S. Tao and J. Wu, Effects of combinative addition of lanthanum and boron on grain refinement of Al-Si casting alloys, Mater. Des., 64 (2014) 423–426.

    Article  Google Scholar 

  10. H. Soda, G. Motoyasu, A. Mclean, C. K. Jen and O. Lisbôa, Method for continuous casting of metal wire and tube containing optical fibre, Mater. Sci. T., 11 (1995) 1169–1173.

    Article  Google Scholar 

  11. M. Okayasu, Y. Miyamoto and K. Morinaka, Material properties of various cast aluminum alloys made using a heated mold continuous casting technique with and without ultrasonic vibration, Metals, 5 (2015) 1440–1453.

    Article  Google Scholar 

  12. M. Okayasu, K. Ota, S. Takeuchi, H. Ohfuji and T. Shiraishi, Influence of microstructural characteristics on mechanical properties of ADC12 aluminum alloy, Mater. Sci. Eng. A, 592 (2014) 189–200.

    Article  Google Scholar 

  13. A. Ohno, Solidification, 1st ed., Springer, Germany (1987) 113–118.

    Book  Google Scholar 

  14. S. Farahany, A. Ourdjini, M. H. Idrsi and S. G. Shabestari, Evaluation of the effect of Bi, Sb, Sr and cooling condition on eutectic phases in an Al-Si-Cu alloy (ADC12) by in situ thermal analysis, Thermochimica Acta., 559 (2013) 59–68.

    Article  Google Scholar 

  15. W. Eidhed, Effects of solution treatment time and Srmodification on microstructure and mechanical property of Al-Si piston alloy, J. Mater. Sci. Technol., 24 (2008) 29–32.

    Google Scholar 

  16. S. Khan, A. Ourdjini, Q. S. Hamed, M. A. A. Najafabadi and R. Elliott, Hardness and mechanical property relationships in directionally solidified aluminum-silicon eutectic alloys with different silicon morphologies, J. Mater. Sci., 28 (1993) 5957–5962.

    Article  Google Scholar 

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Authors and Affiliations

  1. Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan

    Mitsuhiro Okayasu & Shaohua Wu

  2. Ochi Foundry Inc., 1016 Tanouwagata Tanbara-cho, Saijo, Ehime, 791-0522, Japan

    Shuhei Takeuchi & Toshihiro Ochi

Authors
  1. Mitsuhiro Okayasu
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  2. Shuhei Takeuchi
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  3. Shaohua Wu
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  4. Toshihiro Ochi
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Correspondence to Mitsuhiro Okayasu.

Additional information

Mitsuhiro Okayasu received his Ph.D. degree from the University of Toronto in 2006. He is currently a Professor at the Department of Mechanical Engineering at Okayama University in Japan. His research interests are in the area of fatigue and fracture mechanics of the engineering materials. He is also interesting in the development of metal casting technologies and high performance piezoelectric ceramics. He has research and engineering experience of more than 10 years in automotive industries.

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Okayasu, M., Takeuchi, S., Wu, S. et al. Effects of Sb, Sr, and Bi on the material properties of cast Al-Si-Cu alloys produced through heated mold continuous casting. J Mech Sci Technol 30, 1139–1147 (2016). https://doi.org/10.1007/s12206-016-0218-2

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  • DOI: https://doi.org/10.1007/s12206-016-0218-2

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