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Rapid Solidification Joining of Intermetallics using Capacitor Discharge Welding

Published online by Cambridge University Press:  22 February 2011

R. D. Wilson ,
D. E. Alman  and
J. A. Hawk
R. D. Wilson
Affiliation:
U.S. Bureau of Mines, Albany Research Center, Albany, OR 97321
D. E. Alman
Affiliation:
U.S. Bureau of Mines, Albany Research Center, Albany, OR 97321
J. A. Hawk
Affiliation:
U.S. Bureau of Mines, Albany Research Center, Albany, OR 97321
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Abstract

Capacitor Discharge Welding (CDW) is a rapid solidification joining process capable of cooling rates greater than 106 K/s. The Bureau of Mines is investigating the CDW process as a method of joining TiAl, Fe3A1 and MoSi2. Experimental results show that the fusion zone of the CDW welds is less than 0.1 mm wide, is uniform in composition, and has a cellular solidification microstructure. This paper compares the CDW microstructure of several intermetallics to the microstructures obtained from the gas tungsten arc welding.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 364: Symposium L – High-Temperature Ordered Intermetallic Alloys–VI , 1994 , 237
Copyright
Copyright © Materials Research Society 1995

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