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Diffusion Brazing NiAl with Self-Generated Filler Metal

Published online by Cambridge University Press:  01 January 1992

Thomas J. Moore  and
Joseph M. Kalinowski
Thomas J. Moore
Affiliation:
NASA - Lewis Research Center, MS 49-3, Cleveland, OH 44135
Joseph M. Kalinowski
Affiliation:
Sverdrup Technology, 2001 Aerospace Pkwy, MS 49-3, Brook Park, OH 44142
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Abstract

Conventional fusion welding procedures are not likely to be useful for joining NiAl because of its poor low temperature ductility. Thus, the potential use of this material could be limited. This study was designed to demonstrate the feasibility of using a diffusion brazing process to fabricate NiAl components. A unique feature of this process is the development of self-generated filler metal through elevated temperature vacuum exposure. Butt joints were made in extruded bar and joint quality was evaluated using metallographic techniques. Sound joints, which were produced with complete grain growth across the braze interface, were indistinguishable from the base metal. Thus, the feasibility of diffusion brazing NiAl was established.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 1173
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

1. Darolia, R., JOM 43, 44–49, March(1991).Google Scholar
2. Anton, D. L., Shah, D. M., Duhl, D. N., & Giamei, A.F., JOM 41, 12–17, September (1989).Google Scholar
3. Pattee, H. E., High Temperature Brazing, Welding Research Council Bulletin No. 187, (1973).Google Scholar
4. Rechtein, J. J., et al. , J. Applied Physics 38, 8(1967).Google Scholar
5. Jacobi, H., and Stahl, R., J. Phys. Chem. Solids 34, 1737–1748, (1973). Pergamon Press.Google Scholar