Hostname: page-component-5c6d5d7d68-7tdvq Total loading time: 0 Render date: 2024-08-17T15:40:02.307Z Has data issue: false hasContentIssue false
  • English
  • Français

The Influence of Second-Phase Dispersion on Environmental Embrittlement of Ni3(Si, Ti) Alloys

Published online by Cambridge University Press:  10 February 2011

T. Takasugi  and
S. Hanada
T. Takasugi
Affiliation:
Institute for Materials Research, Tohoku University, Katahira 2–1–1, Aoba-ku, Sendai, 980–8577, Japan
S. Hanada
Affiliation:
Institute for Materials Research, Tohoku University, Katahira 2–1–1, Aoba-ku, Sendai, 980–8577, Japan
Get access

Abstract

Some quaternary Ni3(Si, Ti) alloyed with transition elements V, Nb, Zr and Hf was prepared beyond their maximum solubility limits to investigate the effect of second-phase dispersion on moisture-induced embrittlement. V-added Ni3(Si, Ti) alloy contained ductile fcc-type Ni solid solution as the second-phase, while Nb-, Zr- and Hf-added Ni3(Si, Ti) alloys contained hard dispersion compounds as the second-phase. V- and Nb-added Ni3(Si, Ti) alloys did not display reduced tensile elongation in air, indicating that their second phases have the effect of suppressing the moisture-induced embrittlement. Possible mechanisms for the beneficial effect by the second phase on the moisture-induced embrittlement of V- and Nb-added Ni 3(Si, Ti) alloys are discussed in association with hydrogen behavior and deformation property in the constituent phases or at matrix/second-phase interface.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 552: Symposium KK – High-Temperature Ordered Intermetallic Alloys VIII , 1998 , KK6.5.1
Copyright
Copyright © Materials Research Society 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Takasugi, T. and Izumi, O., Acta metall., 34, 607 (1986).CrossRefGoogle Scholar
2. Liu, C. T. and Oliver, W. C., Scripta metall.et mater., 25, 1933 (1991).Google Scholar
3. Liu, C. T., Scripta metall et mater., 27, 25 (1992).Google Scholar
4. Takasugi, T., Suenaga, H. and Izumi, O., J. of Mater. Sci., 26, 1179 (1991).Google Scholar
5. Takasugi, T. and Yoshida, M., J. of Mater. Sci., 26, 3032 (1991).CrossRefGoogle Scholar
6. Ma, C. L., Takasugi, T. and Hanada, S., Scripta metall.et mater., 32, 1025 (1995).Google Scholar
7. Ma, C. L., Takasugi, T. and Hanada, S., Scripta materialia, 34, 1131 (1996).Google Scholar
8. Ma, C. L., Takasugi, T. and Hanada, S., Scripta materialia, 34, 1633 (1996).CrossRefGoogle Scholar
9. Takasugi, T. and Hanada, S., to be published.Google Scholar
10. Takasugi, T., Critical Issues in the Development of High Temperature Structural Materials, edited by Stoloff, N., Duquette, D. J. and Giamei, A. F., The Minerals, Metals and Materials Society, Warrendale, PA, p. 399, (1993).Google Scholar
11. Liu, C. T., 6th Int. Symp. Intermetallic Compounds - Structure and Mechanical Properties, edited by Izumi, O., JIM, p.703, (1991).Google Scholar
12. Nishimura, C., Hirano, T. and Amano, M., Scripta metall. et mater., 29, 1205 (1993).Google Scholar
13. Takasugi, T. and Hanada, S., to be published.Google Scholar