Abstract
A lotus-type porous carbon steel with cylindrical pores was fabricated by the continuous zone melting method in a pressurized mixture of hydrogen and helium gases. The porosity increases with increasing partial pressure of the hydrogen gas, while the pore diameter remains almost constant, independent of the pressure. The ultimate tensile strength of the specimen with cylindrical pores parallel to the tensile direction is lower than the estimated value, assuming that the strength is decreased in proportion to the decrease of the cross-sectional area of the specimen, while the yield strength is higher than the estimated value. The compressive yield strength is also higher than the estimated value. The increase in yield strength is considered to be due to precipitation strengthening. The tensile strength is increased by quenching and tempering, while the elongation decreases. Such mechanical properties are discussed in terms of the microstructural analysis.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Handbook of Cellular Metals—Production, Processing, Applications, H.P. Degischer and B. Kriszt, eds., Wiley-VCH Verlag GmbH, Weinheim, 2002.
V.A. Tracey: Int. J. Powder Metall. Powder Technol., 1976, vol. 12, pp. 25–35.
L. Albano-Muller: Powder Metall. Int., 1982, vol. 14, pp. 73–79.
M. Imabayashi, M. Ichimura, and Y. Kanno: Trans. JIM, 1983, vol. 24, pp. 93–100.
I. Svensson and H.S. Fredriksson: Proc. Int. Conf. Organised by the Applied Metallurgy and Metals Technology, Group of TMS, University of Warwick, Coventry, United Kingdom, 1980, pp. 376–80.
O. Knacke, H. Probst, and J. Wernekinck: Z. Metallkd., 1979, vol. 70, pp. 1–6.
L.V. Boiko, V.I. Shapovalov, and E.A. Chernykh: Metallurgiya, 1991, vol. 346, pp. 78–81.
A. Pattnaik, S.C. Sanday, C.L. Vold, and H.I. Aaronson: Mater. Res. Soc. Symp. Proc., 1995, vol. 371, pp. 371–76.
Y. Zheng, S. Sridhar, and K.C. Russel: Mater. Res. Soc. Symp. Proc., 1995, vol. 371, pp. 365–70.
H. Nakajima: Mater. Integration, 1999, vol. 12, pp. 37–44.
H. Nakajima, T. Ikeda, and S.K. Hyun: in Cellular Metals: Manufacture, Properties and Applications, J. Banhart, N. Fleck, and A. Mortensen, eds., Verlag MIT Publications, Berlin, 2003, pp. 191–202.
T. Ikeda, T. Aoki, and H. Nakajima: Metall. Mater. Trans. A, 2005, vol. 36A, pp. 77–86.
T. Ikeda, M. Tsukamoto, and H. Nakajima: Mater. Trans., 2002, vol. 43, pp. 2678–84.
Metal Data Book, The Japan Institute of Metals, Tokyo, 2004, p. 365.
S.K. Hyun and H. Nakajima: Mater. Lett., 2003, vol. 57, pp. 3149–54.
S.K. Hyun, T. Ikeda, and H. Nakajima: Sci. Tech. Adv. Mater., 2004, vol. 5, pp. 201–05.
S.K. Hyun, K. Murakami, and H. Nakajima: Mater. Sci. Eng., 2001, vol. A299, pp. 241–48.
M. Yu. Balshin: Dokl. Akad. Sci., USSR, 1949, vol. 67, p. 831.
A.R. Boccaccini, G. Ondracek, and E. Mombello: J. Mater. Sci. Lett., 1995, vol. 14, pp. 534–36.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kujime, T., Hyun, SK. & Nakajima, H. Fabrication of lotus-type porous carbon steel by the continuous zone melting method and its mechanical properties. Metall Mater Trans A 37, 393–398 (2006). https://doi.org/10.1007/s11661-006-0009-y
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11661-006-0009-y