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Metallograpiuc Study of Gasar Porous Magnesium

Published online by Cambridge University Press:  10 February 2011

Chanman Park  and
Steven R. Nutt
Chanman Park
Affiliation:
University of Southern California, Department of Materials Science, Los Angeles, CA.
Steven R. Nutt
Affiliation:
University of Southern California, Department of Materials Science, Los Angeles, CA.
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Abstract

One of the promising techniques for making porous metals is the so-called GASAR process. In principle, the process affords considerable control over pore size, shape, and distribution. However, in practice, the pore microstructure is difficult to control, and a clearer understanding of microstructural evolution would be helpful. In this study, we undertake a detailed microstructural study of a porous Mg and AZ31 Mg alloy synthesized by the GASAR process. Microscopic studies demonstrated the presence of different pore size ranges. The pore distribution depended on the distance from the chill end of ingots. TEM observations revealed apparent crack lines (gas tracks) near the pores and ternary intermetallic phases in the alloy.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 521: Symposium R – Porous & Cellular Materials for Structural Applications , 1998 , 315
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1. Shapovalov, Vladimir I., MRS Bull. 19 (4), 24 (1994).Google Scholar
2. Patinaik, A., Sanday, S. C., Vold, C. L. and Aaronson, H. I., MRS Symp. Proc. 371, 371 (1995).Google Scholar
3. Simone, A. E. and Gibson, L. J., Acta Mater. 44 (4), 1437–1447 (1996).Google Scholar
4. Sequeira, W. P., Murray, M. T., Dunlop, G. L. and StJohn, D. H., in Automotive Alloys, edited by Das, Subodh K. (TMS, Pennsylvania, 1997), p. 169–183.Google Scholar
5. Polmear, I. J., Light Alloys; Metallurgy of the Light Metals (Edward Arnold Publishers, London, 1981) p. 138.Google Scholar
6. Ion, S. E., Humphreys, F. J. and White, S. H., Acta Metall. 30, 1909 (1982)Google Scholar
7. Thomas, G. and Goringe, M. J., Transmission Electron Microscopy of Materials, (John Wiley & Sons Publishers, New York, 1979) p. 92.Google Scholar
8. ASM Metals Reference Book; A handbook of data about metals and metalworking (American Society for Metals Publishers, Ohio, 1981) p. 406.Google Scholar