Microstructural and weldability evaluation of 310TaN [electronic resource].

Published:: Oak Ridge, Tenn. : Oak Ridge National Laboratory, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: pages 445-454 : digital, PDF file
Additional Creators:: Oak Ridge National Laboratory and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Excellent weldability and good microstructural stability of 310TaN, in terms of the formation and growth of secondary phases at elevated temperature, was revealed in this investigation. The interganular stress corrosion resistance of 310TaN is superior to modified 800H and 310HCbN evaluated previously due to the fact that TaC, TaN and Ta(C,N) particles are more stable compared to Nb-rich or Ti-rich carbides, nitrides and carbonitrides presented in the other advanced alloys. Using resistance spot welding technique for which extremely fast cooling is a characteristic, it was found that a very minor amount of gain boundary liquation takes place during welding thermal cycling. The limited grain boundary liquation is of the eutectic type i.e., a low tendency to weld HAZ hot cracking.

Report Numbers:

E 1.99:ornl/fmp--96/1
E 1.99: conf-9605167--
conf-9605167--
ornl/fmp--96/1

Subject(s):

Materials Science

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Note:

Published through SciTech Connect.
08/01/1996.
"ornl/fmp--96/1"
" conf-9605167--"
"DE97050349"
10. annual conference on fossil energy materials, Knoxville, TN (United States), 14-16 May 1996.
Swindeman, R.W.; Lundin, C.D.; Qiao, C.Y.P.

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