A study on the squeeze casting of Al-7.0Si-0.4Mg alloy for fuel system parts

  • Kim Soon-Ho (Department of Automotive mechanical Engineering, Silla University) ;
  • Kim Seong-Soo (Department of Automotive mechanical Engineering, Silla University)
  • Published : 2005.07.01

Abstract

Aluminum alloy casting is gaining increased acceptance in automotive and electronic industries and especially, squeeze casting is the most efficient method of mass manufacturing of such parts. In this study, the microstructures and mechanical properties of Al-7.0Si-0.4Mg(AC4C) alloy fabricated by squeeze casting process for development of fuel system parts (fuel rail) are investigated. The microstructure of squeeze cast specimen was composed of eutectic structure aluminum solid solution and $Mg_2Si$ precipitates. The tensile strength of as-solid solution treatment Al-7.0Si-0.4Mg alloy was 298.5MPa. It was found that Al-7.0Si-0.4Mg alloy had good corrosion resistance in electrochemical polarization test.

Keywords

References

  1. Chadwick, G. and Bloyce, 'Magnesium Alloys and their Applications,' DGM Conf., pp.93-96, 1992
  2. Ruden, T., SAE Technical paper No. 900793, 1990
  3. Polmear, I., 'Light alloy,' 2nd ed., Edward Anold, pp.144-149, 1987
  4. King, F., 'Aluminium and Its alloy,' Cambridge University Press, pp.112-117, 1980
  5. Brooks, C., 'Heat Treatment, Structure & Properties of Nonferrous Alloys,' American Society for Metals, 1982
  6. Metals Handbook 10th ed., 2, ASM, pp.152-159, 1990
  7. Pharr, G., Courington, S., Wadsworth, J. and Nieh, T., 'Deformation of an extruded Nickel beryllide between room temperature and 820,' J. Mater. Res., 6, pp.2653-2658, 1991 https://doi.org/10.1557/JMR.1991.2653
  8. Bryant, A., Nuova, A., 'Crystallography of Mg2Si precipitates in Al-7.0Si-0.4Mg alloy,' Metallurgia, 42, pp.228-233, 1977
  9. Gupta, A. and Lloyd, D., 'Microstuructural study of continuous precipitation in Al alloys,' ICCA3, pp.21-26, 1992
  10. Lynch, J., Brown L. and Jacobs,M., 'Microanalysis of age-hardening precipitates in aluminium alloys,' Acta Metallurgica, 30, pp.1389-1393, 1982 https://doi.org/10.1016/0001-6160(82)90159-6
  11. Shool, S., SAE technical paper No. 900790, 1990
  12. Spear, R. and Gardner, G., 'Effect of Applied Pressure on Mechanical Properties of Squeeze Cast Al alloys Cast,' Prod., pp.1988-1992, 1972
  13. Chadwick, G., 'Proceeding of Conf. onMagnesium Technology,' Inst. Metal, London, pp.75-78, 1986
  14. Metals Handbook 9th ed., 2, ASM, pp.45-52, 1990
  15. Flemings, M., 'Solidfication Processing,' McGraw-Hill Book Company, pp.207-221, 1974
  16. Metals Handbook 9th ed., 2, ASM, pp.61-62, 1990
  17. Metals Handbook 9th ed., 2, ASM, pp.156-159, 1990
  18. Preston, G., proc. R. Soc., A167, pp.526-529, 1938 https://doi.org/10.1098/rspa.1938.0152
  19. Guinier, A., Ann. Physic, 12, pp.161-167, 1939
  20. Dutta, I. and Allen, S., 'Precipitation hardening of Al-Si-Mg alloy,' J. Mat. Sci. letter, 10(6), pp.323-327, 1991 https://doi.org/10.1007/BF00719697
  21. Porter, D. and Easterling, K., 'Phase Transformations in Metals and Alloys,' 2nd ed., Chapman & Hall, pp.307-311, 1992