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Capacitor Discharge and Flash Welding of Sic-Reinforced High Temperature Al Alloys

Published online by Cambridge University Press:  15 February 2011

D. S. Schwartz ,
J. H. Devletian ,
S. J. Chen  and
J. Gould
D. S. Schwartz
Affiliation:
McDonnell Douglas Corporation, m/c 111-1041, PO Box 516, St. Louis, MO 63166-0516
J. H. Devletian
Affiliation:
Oregon Graduate Inst., Dept. of Materials Sci. and Engineering, Beaverton, OR 97006-1999
S. J. Chen
Affiliation:
Oregon Graduate Inst., Dept. of Materials Sci. and Engineering, Beaverton, OR 97006-1999
J. Gould
Affiliation:
Edison Welding Inst., 1100 Kinnear Rd., Columbus, OH 43212
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Abstract

Discontinuously reinforced Al alloys (DRAs) are difficult to join using conventional fusion welding techniques due to inhomogeneous redistribution of the reinforcements and reaction between molten Al and SiC. Two specialized welding techniques, capacitor discharge welding and flash welding, were assessed as possible ways to avoid these problems. Using these techniques, welds were made with two DRAs: 8009/SiC/llp and 2009/SiC/15w. Capacitor discharge welding resulted in the formation of Al-carbides in the weld zones, but flash welding produced satisfactory joints in both DRAs.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 314: Symposium R – Joining and Adhesion of Advanced Inorganic Materials , 1993 , 163
Copyright
Copyright © Materials Research Society 1993

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References

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