NASA NTRS · 19920051242
Solidification processing of intermetallic Nb-Al alloys
Abstract
Several Nb-Al alloys, including single-phase NbAl3 and the eutectic of Nb2Al and NbAl3, were prepared either by nonconsumable arc melting in Ar or by zone processing in He following initial induction melting and rod casting, and the effect of the solidification route on the microstructure and room-temperature mechanical properties of these alloys was investigated. Automated control procedures and melt conditions for directional solidification of NbAl3 and the Nb2Al/Nb3Al eutectic were developed; high purity and stoichiometry were obtained. The effects of ternary additions of Ti and Ni are described.
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Smith, Preston P., Oliver, Ben F., Noebe, Ronald D.. 1992-05-01. Solidification processing of intermetallic Nb-Al alloys. https://ntrs.nasa.gov/citations/19920051242
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