Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-29T09:22:42.507Z Has data issue: false hasContentIssue false
  • English
  • Français

Micro- and Crystal-Structural Observations of Al-Rich Nb and Al-Rich Ti Alloys

Published online by Cambridge University Press:  01 January 1992

K. Mizuuchi ,
Y. Okanda ,
M. Kitamura ,
C.V. Cooper ,
A.F. Giamei  and
H.R.P. Inoue
K. Mizuuchi
Affiliation:
Osaka Municipal Technical Research Institute, Osaka, 536, Japan
Y. Okanda
Affiliation:
Osaka Municipal Technical Research Institute, Osaka, 536, Japan
M. Kitamura
Affiliation:
Electrical and Electronic Engineering, Utsunomiya Univ., Utsunomiya 321, Japan
C.V. Cooper
Affiliation:
United Technologies Research Center, East Hartford, CT 06108
A.F. Giamei
Affiliation:
United Technologies Research Center, East Hartford, CT 06108
H.R.P. Inoue
Affiliation:
Materials Science and Engineering, Univ. of Washington, Seattle, WA 98195.
Get access

Abstract

Microstructural observations, phase identification, and hardness measurements of several ternary and quaternary A13Nb− and A13Ti-based alloys containing Ni or Fe have been carried out after homogenization at 1100°C. An L12 phase is formed in an (A1,Fe)3Ti-based alloy when a small amount of Nb is added. Conversely, in Al-Nb-Ni alloys whose compositions are based on Al3Nb, no L12 phase has been detected. In this case, alloys are either three-phase(B2, DO22 and Laves) or two-phase(B2 and Laves). The absence of the Ll2 phase formation in AlgNb-based alloys containing Ni is attributed to limited solubility of Ni in the Al3Nb compound. Rapidly solidified and slowly cooled specimens have also been analyzed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 1191
Copyright
Copyright © Materials Research Society 1995

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] Inoue, H.R.P., Cooper, C.V., Favrow, L.H., Hamada, Y., and Wayman, C.M., Mat. Rec. Soc. Symp. Proc., 213, 493 (1991).Google Scholar
[2] Inoue, H.R.P., Kitamura, M., Wayman, C.M., and Chen, H., Philos. Mag. Letters, 63, 345 (1991).Google Scholar
[3] Mizuuchi, K., Okanda, Y., and Ohnaka, I., J. Japan Inst. Metals, 55, 874 (1991).Google Scholar
[4] Seibold, A., Zeitshrift fur Metallkunde, 72, 712 (1981).Google Scholar
[5] Pak, H.R., Wayman, C.M., Favrow, L.H., Cooper, C.V., and , J.S.L. Pak, Mat. Res. Soc. Symp. Proc, 186, 357 (1991).Google Scholar
[6] Benjamin, J.S., Giessen, B.C., and Grant, N.J., Met. Trans. AIME, 236, 224 (1966).Google Scholar
[7] Ishida, T., Kainuma, R., Ueno, N., and Nisizawa, Metall. Trans., 22A, 441 (1991).Google Scholar