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Effect of an oxide dispersion on the hydrogen embrittlement of a Ni3Al base alloy

Published online by Cambridge University Press:  31 January 2011

G.M. Camus ,
D.J. Duquette  and
N.S. Stoloff
G.M. Camus
Affiliation:
Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, New York 12180–3590
D.J. Duquette
Affiliation:
Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, New York 12180–3590
N.S. Stoloff
Affiliation:
Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, New York 12180–3590
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Abstract

The susceptibility of a hot isostatically pressed Ni3AI, Cr, Zr alloy to hydrogen embrittlement has been studied. The base alloy and a second alloy containing 5 vol. % Y2O3 particles were tested by cathodically charging with hydrogen prior to or simultaneously with tensile testing. Embrittlement of both alloys was noted under both charging conditions, but was much more severe for simultaneous charging. Intergranular fracture due to hydrogen was noted in the base alloy, while the dispersoid-containing alloy failed along prior particle boundaries. The results are explained by a dislocation transport mechanism in which hydrogen is delivered to interior fracture sites by mobile dislocations. Much greater penetration of hydrogen is achieved under simultaneous charging conditions.

Type
Articles
Information
Journal of Materials Research , Volume 5 , Issue 5 , May 1990 , pp. 950 - 954
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

1Aoki, K. and Izumi, O., J. Jpn. Inst. Met. 43, 1190 (1979).CrossRefGoogle Scholar
2Liu, C.T. and Sikka, V., J. of Met. 38 (5), 19 (1986).Google Scholar
3Liu, C.T. and White, C. L., in High Temperature Ordered Intermetallic Alloys (Proc. Mater. Res. Soc. Symp.) (Materials Research Society, Pittsburgh, PA, 1985), Vol. 39, p. 355.Google Scholar
4Moore, B., Bose, A., German, R. M., and Stoloff, N. S., in High Temperature/High Performance Composites (Proc. Mater. Res. Soc. Symp.) (Materials Research Society, Pittsburgh, PA, 1988), Vol. 120, p. 51.Google Scholar
5Jany, J. S. C. and Koch, C. C., Scripta Metall. 22, 677 (1988).Google Scholar
6Povirk, G. L., Horton, J. A., McKamey, C. G., Tiegs, T. N., and Nutt, S. R., J. Mater. Sci. 23, 3945 (1988).CrossRefGoogle Scholar
7Kuruvilla, A. K. and Stoloff, N. S., Scripta Metall. 19, 83 (1985).CrossRefGoogle Scholar
8Masahashi, N., Takasugi, T., and Izumi, O., Metall. Trans. A 19A, 353 (1988).CrossRefGoogle Scholar
9Kuruvilla, A. K., Ashok, S., and Stoloff, N. S., Proc. 3rd Int. Congress on Hydrogen in Metals, Paris (Pergamon, 1982), Vol. 2, p. 629.Google Scholar
10Takasugi, T. and Izumi, O., Acta Metall. 34, 607 (1986).CrossRefGoogle Scholar
11Camus, G. M., Stoloff, N. S., and Duquette, D. J., Acta Metall. 37, 1497 (1989).CrossRefGoogle Scholar
12Bond, G. M., Robertson, I. M., and Birnbaum, H. K., Acta Metall. 37, 1407 (1989).CrossRefGoogle Scholar
13Liu, Y., Takasugi, T., Izumi, O., and Yamada, T., Acta Metall. 37, 507 (1989).CrossRefGoogle Scholar
14Ashok, S., Duquette, D. J., Stoloff, N. S., and Verpoort, C., Scripta Metall. 15, 1329 (1981).CrossRefGoogle Scholar
15McKamey, C. J., Povirk, G. L., Horton, J. A., Tiegs, T. N., and Ohriner, E. K., in High Temperature Ordered Intermetallic Alloys III (Proc. Mater. Res. Soc. Symp.) (Materials Research Society, Pittsburgh, PA, 1989), Vol. 133, p. 609.Google Scholar