Hostname: page-component-77c89778f8-cnmwb Total loading time: 0 Render date: 2024-07-19T22:14:13.592Z Has data issue: false hasContentIssue false

Strength and Ductility of Ni3Al Alloyed with Boron and Substitutional Elements

Published online by Cambridge University Press:  22 February 2011

K. Ishikawa
Affiliation:
Graduate School, Tohoku University, present address: Hitachi Ltd., Hitachi 316, Japan
K. Aoki
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980–77, Japan.
T. Masumoto
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980–77, Japan.
Get access

Abstract

The effect of simultaneous alloying of boron (B) and the substitutional elements M on mechanical properties of Ni3Al was investigated by the tensile test at room temperature. The yield strength of Ni3Al+B increases by alloying with M except for Fe and Ga. In particular, it increases by alloying with Hf, Nb, W, Ta, Pd and Si. The fracture strength of Ni3Al+B increases by alloying with Pd, Ga, Si and Hf, but decreases with the other elements. Elongation of Ni3Al+B increases by alloying with Ga, Fe and Pd, but decreases with other elements. Hf and Pd is the effective element for the increase of the yield strength and the fracture strength of Ni3Al+B, respectively. Alloying with Hf leads to the increases of the yield strength and the fracture strength of Ni3Al+B, but to the lowering of elongation. On the other hand, alloying with Pd improves all mechanical properties, i.e. the yield strength, the fracture strength and elongation. On the contrary, alloying with Ti, V and Co leads to the lowering of mechanical properties of Ni3Al+B. The reason why ductility of Ni3Al+B is reduced by alloying with some elements M is discussed.

Type
Research Article
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

1. Aoki, K. and Izumi, O., J.Jpn.Inst.Met.,23,1190(1979).Google Scholar
2. Taub, A.I., Huang, S.C. and Chang, K.M., Metall.Trans.,15A,399(1987).Google Scholar
3. Liu, C.T., White, C.L. and Horton, J.A., Acta Metall., 33,213(1985).Google Scholar
4. Guard, R.W. and Westbrook, J.H., Trans. Metall.Soc.AIME,215,807(1959).Google Scholar
5. Ochiai, S., Oya, Y. and Suzuki, T., Acta Metall., 32,289(1984).Google Scholar
6. Rawlings, R.D. and Stanton-Bevan, A.E., J.Mater.Sci.,10,505(1975).Google Scholar
7. Ochiai, S., Mishima, Y., Yodogawa, M. and Suzuki, T., Trans.Jpn.Int. Met., 27, 32 (1986).Google Scholar
8. Aoki, K., Ishikawa, K. and Masumoto, T., Mater.Sci.Eng.A(1995) in press.Google Scholar
9. Aoki, K., Mater.Trans.Jpn.Inst.Met.,31,970(1990).Google Scholar
10. Chiba, A., Hanada, S. and Watanabe, S.,ActaMetall. ,39,1799(1991)Google Scholar