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Improvement in High Temperature Oxidation Resistance of Co-Al-W Based Superalloys

Published online by Cambridge University Press:  18 March 2015

Takahiko Ito ,
Shogo Ikeda  and
Katsushi Tanaka
Takahiko Ito
Affiliation:
Department of Mechanics, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
Shogo Ikeda
Affiliation:
Department of Mechanics, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
Katsushi Tanaka
Affiliation:
Department of Mechanics, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.
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Abstract

Oxidation tests of Cr containing Co-based superalloys with compositions of Co-20at.%Ni-9at.%Al-9at.%W-x at.%Cr (x = 2, 4, 6, 8 and 10) have been carried out at 1173 and 1273 K in air. Oxidation resistance is improved upon alloying with Cr not only at 1173 K but also at 1273 K. The weight gain of the 10at.%Cr alloy oxidized at 1173 K is similar to that of the 5th generation Ni-based superalloy of TMS-173. Alloying with Cr is efficient to improve oxidation resistance, however, the shape of γ’ precipitates is rounded and the alignment of the precipitates along the <100> direction becomes less pronounced upon alloying with Cr.

Keywords

Cooxidationstructural
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1760: Symposium YY – Advanced Structural and Functional Intermetallic-Based Alloys , 2015 , mrsf14-1760-yy02-02
Copyright
Copyright © Materials Research Society 2015 

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References

REFERENCES

Sato, J., Omori, T., Oikawa, K., Ohnuma, I., Kainuma, R., Ishida, K., Science 312, 90 (2006) .CrossRefGoogle Scholar
Miura, S., Ohkubo, K. and Mohri, T., Mater. Trans. 48, 2403 (2007).CrossRefGoogle Scholar
Suzuki, A., DeNolf, G.C., and Pollock, T.M., Scripta Mater. 56, 385 (2007).CrossRefGoogle Scholar
Tanaka, K., Ohashi, T., Kishida, K. and Inui, H., Appl. Phys. Lett. 91, 181907 (2007).CrossRefGoogle Scholar
Shinagawa, K., Omori, T., Sato, J., Oikawa, K., Ohnuma, I., Kainuma, R. and Ishida, K., Mater. Trans. 49, 1474 (2008).CrossRefGoogle Scholar
Suzuki, A. and Pollock, T.M., Acta Mater. 56, 1288 (2008).CrossRefGoogle Scholar
Osaki, M., Ueta, S., Shimizu, T., Omori, T. and Ishida, K., Denkiseikou 79, 197 (2008).Google Scholar
Chinen, H., Omori, T., Oikawa, K., Ohnuma, I., Kainuma, R. and Ishida, K., J. Phase Equi. Diffusion 30, 587 (2009).CrossRefGoogle Scholar
Kobayashi, S., Tsukamoto, Y., Takasugi, T., Chinen, H., Omori, T., Ishida, K. and Zaefferer, S., Intermetallics 17, 1085 (2009).CrossRefGoogle Scholar
Shinagawa, K., Omori, T., Oikawa, K., Kainuma, R. and Ishida, K., Scripta Mater. 61, 612 (2009).CrossRefGoogle Scholar
Pollock, T.M., Dibbern, J., Tsunekane, M., Zhu, J. and Suzuki, A., JOM 62, 58 (2010).CrossRefGoogle Scholar
Chen, M. and Wang, C.Y., Physics Letters A 374, 3238 (2010).CrossRefGoogle Scholar
Bauer, A., Neumeier, S., Pyczak, F. and Goken, M., Scripta Mater. 63, 1197 (2010).CrossRefGoogle Scholar
Ooshima, M., Tanaka, K., Okamoto, N.L., Kishida, K. and Inui, H., J. Alloys Comp. 508, 71 (2010).CrossRefGoogle Scholar
Inui, H., Oohashi, T., Okamoto, N.L., Kishida, K. and Tanaka, K., Mater. Sci. Forum 638-642, 1342 (2010).Google Scholar
Okamoto, N.L., Oohashi, T., Adachi, H., Kishida, K., Inui, H. and Veyssiere, P., Phil. Mag. 91, 3667 (2011).CrossRefGoogle Scholar
Klein, L., Bauer, A., Neumeier, S., Goken, M. and Virtanen, S., Corrosion Science 53, 2027 (2011).CrossRefGoogle Scholar
Klein, L., Shen, Y., Killian, M.S. and Virtanen, S., Corrosion Science 53, 2713 (2011).CrossRefGoogle Scholar
Kobayashi, S., Tsukamoto, Y. and Takasugi, T., Intermetallics 19, 1908 (2011).CrossRefGoogle Scholar
Tanaka, K., Ooshima, M., Tsuno, N., Sato, A. and Inui, H., Phil. Mag. 92, 4011 (2012).CrossRefGoogle Scholar
Titus, M.S., Suzuki, A., Pollock, T.M., Scripta Mater. 66, 574 (2012).CrossRefGoogle Scholar
Bauer, A., Neumeier, S., Pyczak, F., Singer, R.F. and Goken, M., Mater. Sci. Eng. A 550, 333 (2012).CrossRefGoogle Scholar
Meher, S., Yan, H.Y., Nag, S., Dye, D. and Banerjee, R., Scripta Mater. 67, 850 (2012).CrossRefGoogle Scholar
Omori, T., Oikawa, K., Sato, J., Ohnuma, I., Kattner, U.R., Kainuma, R. and Ishida, K., Intermetallics 32, 274 (2013).CrossRefGoogle Scholar
Klein, L., Killian, M.S. and Virtanen, S., Corrosion Science 69, 43 (2013).CrossRefGoogle Scholar
Vermaak, N., Mottura, A. and Pollock, T.M., Corrosion Science 75, 300 (2013).CrossRefGoogle Scholar
Zaplatynsky, I., Oxid. Metals, 11, 289 (1977).CrossRefGoogle Scholar