VACUUM ARC MELTING OF EXPERIMENTAL REFRACTORY METALS,

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Abstract:

Vacuum arc melting of experimental refractory metals at the Experimental Metals Processing Facility is summarized. The influence of fur nace design modifications and melt variables on electrode melt rates is shown. Minor additions of oxygen and titanium to tungsten electrodes reduce the melt rate and additions of carbon and zirconium cause no significant change in melt rate. Increased melting current also increases electrode consumption rate. In general, coarser macrostructures are associated with slower melt rates. Author

Author(s):
Inouye, S.
Author Organization(s):
AIR FORCE ROCKET PROPULSION LAB EDWARDS AFB CALIF
Supplementary Note:
Report on Metallic Materials.
Annotation:
Vacuum arc melting of experimental refractory alloys. Furnace design and performance; effects rting materials and furnace variables on ingot structure.
Pagination:
0022

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
RTD-TDR-63-4089
Task Number(s):
735101
Project Number(s):
7351
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*REFRACTORY METAL ALLOYS, MELTING, VACUUM, TUNGSTEN, ADDITIVES, OXYGEN, CARBON, ZIRCONIUM, ELECTRODES, GRANULES, MOLYBDENUM, NIOBIUM, RHENIUM ALLOYS, CARBON ALLOYS, BORON ALLOYS, HAFNIUM
Report Date:
1963 Nov 01