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Improvement of Room Temperature Ductility of Ni3Al by Unidirectional Solidification

Published online by Cambridge University Press:  26 February 2011

Toshiyuki Hirano
Affiliation:
Nat.Res. Inst. for Metals, 1–2–1, Sengen, Tsukuba, Ibaraki 305, Japan
Sea-Sung Chung
Affiliation:
Res. Lab. of Precision Machinery and Electronics, Tokyo Inst. of Tech., 4259 Nagatsuta, Midori-ku, Yokohama 227, Japan
Yoshinao Mishima
Affiliation:
Res. Lab. of Precision Machinery and Electronics, Tokyo Inst. of Tech., 4259 Nagatsuta, Midori-ku, Yokohama 227, Japan
Tomoo Suzuki
Affiliation:
Dept. of Metall. Eng., Tokyo Inst. Tech., Ookayama, Meguroku, Tokyo 152, Japan
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Abstract

We present the new promising method to improve the ductility of intermetallic compound, Ni3Al. Stoichiometric and Alrich Ni3A1 were unidirectionally grown at the growth rate of 24 mm/h by a floating zone method (FZ-UDS). The stoichiometric Ni3Al had a columnar-grained and single phase structure, whereas the Al-rich Ni3Al had a Ni3Al matrix with martensite-like precipitates. These alloys exhibited a large tensile elongation along the growth direction at room temperature. Fracture mode is a complete transgranular fracture in the stoichiometric Ni 3Al alloy, and a mixture of transgranular fracture of the matrix and cleavage of the martensite-like precipitates with cracking at the phase boundary in the Al-rich Ni3Al alloys.

Type
Research Article
Copyright
Copyright © Materials Research Society 1991

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References

Aoki, K. and Izumi, O., J.Jpn.Inst. Metals, 43, 1190 (1979).CrossRefGoogle Scholar
Liu, C.T., White, C.L., and Horton, J.A., Acta metall., 33, 213 (1985).CrossRefGoogle Scholar
Takasugi, T., Izumi, O., and Masahashi, N., Acta metall., 33, 1259 (1985).CrossRefGoogle Scholar
4. Noguchi, O., Oya, Y., and Suzuki, T., Met.Trans.A, 12A, 1647 (1981).CrossRefGoogle Scholar
5. Hirano, T., Acta metall.mater., 38, 2667 (1990).CrossRefGoogle Scholar
6. Nourbakhsh, S. and Chen, P., Acta metall., 37, 1573 (1989).CrossRefGoogle Scholar
7. Hirano, T., (unpublished).Google Scholar

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