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Improvement of Elevated Temperature Material Properties in Intermetallic Compound Ni3Al

Published online by Cambridge University Press:  26 February 2011

Akitsugu Fujita ,
Tatsuki Matsumoto ,
Makoto Nakamura  and
Yorimasa Takeda
Akitsugu Fujita
Affiliation:
Nagasaki Research & Development Center, Mitsubishi Heavy Industries, Ltd., 1-1 Akunoura-machi, Nagasaki 850-91, Japan
Tatsuki Matsumoto
Affiliation:
Nagasaki Research & Development Center, Mitsubishi Heavy Industries, Ltd., 1-1 Akunoura-machi, Nagasaki 850-91, Japan
Makoto Nakamura
Affiliation:
Nagasaki Research & Development Center, Mitsubishi Heavy Industries, Ltd., 1-1 Akunoura-machi, Nagasaki 850-91, Japan
Yorimasa Takeda
Affiliation:
Nagasaki Research & Development Center, Mitsubishi Heavy Industries, Ltd., 1-1 Akunoura-machi, Nagasaki 850-91, Japan
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Abstract

Intermetallic compound Ni3Al(γ′) is one of the major constituents in Ni-base superalloys. But it is not used by itself for structural use because of its low ductility and low strength.

In the present study, the improvement of elevated temperature mechanical properties of Ni3Al intermetallic compound is pursued by addition of such elements as Fe, Ti, Cr, V, Nb, Ta, Mo, W, Zr and Hf. These results show that Ni 3AI which contains some elements substituting for Al has better mechanical properties and creep rupture properties than commercial Inconel 713C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 133: Symposium H – High-Temperature Ordered Intermetallic Alloys III , 1988 , 573
Copyright
Copyright © Materials Research Society 1989

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References

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