Microstructural and weldability evaluation of 310TaN
- Univ. of Tennessee, Knoxville, TN (United States)
- Oak Ridge National Lab., TN (United States)
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.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- OSTI ID:
- 458964
- Report Number(s):
- ORNL/FMP-96/1; CONF-9605167-; ON: DE97050349; TRN: 97:001933-0033
- Resource Relation:
- Conference: 10. annual conference on fossil energy materials, Knoxville, TN (United States), 14-16 May 1996; Other Information: PBD: Aug 1996; Related Information: Is Part Of Proceedings of the tenth annual conference on fossil energy materials; Cole, N.C.; Judkins, R.R. [comps.]; PB: 551 p.
- Country of Publication:
- United States
- Language:
- English
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