Skip to main content Accessibility help

Hydrogen Embrittlement of Ni3Al at Various Hydrogen Contents and Strain Rates

  • Huaxin Li (a1) and T. K. Chaki (a1)


Hydrogen embrittlement has been studied in continuous cast sheet of a Ni 3 Alalloy (NI 77.83 AL 21.73 ZR 0.34 B 0.1), known as IC-50, after introducing various amounts of hydrogen cathodically. The elongation and UTS decreased with the increasing content of hydrogen. When tensile-tested at a strain rate of 5.8 × 10−5 s−1, the elongation decreased from 32.7% for no charging to 1.9% for 330 min of charging with 50 mA cm−2 current. The yield stress, however, did not change. When tested at a higher strain rate of 5.8 × 10−3 s−1, the embrittlement was less, but the yield stress increased with the hydrogen content. With increasing hydrogen content the fracture mode changed from dimpled to intergranular and cleavage modes.



Hide All
[1] Copley, S. M. and Kear, B. H., Trans. The Metall. Soc. – AIME, 239, 977 (1967).
[2] Liu, C. T., in High-Temperature Ordered Intermetallic Alloys II, edited by Stoloff, N. S., Koch, C. C., Liu, C. T., and Izumi, O. (Materials Research Society, Pittsburgh, 1987), p. 355.
[3] Aoki, K. and Izumi, O., Nippon Kinzoku Gakkaishi, 43, 1190 (1979).
[4] Liu, C. T., White, C. L., and Horton, J. A., Acta Metall., 33, 213 (1985)
[5] Chaki, T. K., Philos. Mag. Lett., 61, 5 (1990); 63, 123 (1991).
[6] Chaki, T. K., in High-Temperature Ordered Intermetallic Alloys IV, edited by Johnson, L. A., Pope, D. P., and Stiegler, J. O. (Materials Research Society, Pittsburgh, 1991), p. 769.
[7] Kuruvilla, A. K. and Stoloff, N. S., Scripta Metall., 19, 83 (1985).
[8] Bond, G. M., Robertson, I. M., and Birnbaum, H. K., Acta Metall., 37, 1407 (1989).
[9] Wan, X. J., Zhu, J. H., and Jing, K. L., Scripta Metall. Mater., 26, 479 (1992).
[10] Shutt, R. C. and Fink, D. A., Welding Journal, 64, 19 (1985).

Related content

Powered by UNSILO

Hydrogen Embrittlement of Ni3Al at Various Hydrogen Contents and Strain Rates

  • Huaxin Li (a1) and T. K. Chaki (a1)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.