RESEARCH AND DEVELOPMENT IN HIGH STRENGTH HEAT RESISTANT ALLOYS. Interim Report No. 15 for period October 27 through December 26, 1960

Technical Report · Fri Dec 30 04:00:00 EST 1960

OSTI ID:4833597

Feild, Jr, A L

Problems associated with the Phase II scale-up of Tabase alloys continued to receive most of the attention dur-ing this report period. Improved methods of preparing alloy mixtures in consumable electrode form were developed, both for initial blending stages and for the actual pressing and sintering operations. Several more Ta alloy ingots were prepared by arc melting, using a d- c power source. The hot rolling studies of a number of cast sheet bar Ta alloy compositions were completed. The results of this work were not encouraging and indicated that direct rolling of cast structures in the alloy compositions involved did not appear feasible at the rolling temperature used (1200 deg C). Additional data were obtained on the elevated temperature hardness of several Ta- base alloys. Machinability experiments on W ingots gave good results, and conditioning of these ingots no longer presents a major problem. (auth)

• Research Organization: Westinghouse Electric Corp. Research Labs., Pittsburgh
• NSA Number: NSA-16-000513
• OSTI ID: 4833597
• Report Number(s): AD-255011
• Country of Publication: United States
• Language: English

Related Subjects

ALLOYS
CASTING
CURRENTS
ELECTRIC ARCS
ELECTRODES
FABRICATION
HARDNESS
HEAT RESISTING METALS
HOT WORKING
MACHINING
MECHANICAL PROPERTIES
MELTING
METALS, CERAMICS, AND OTHER MATERIALS
MIXING
PREPARATION
PRESSURE
RODS
ROLLING
SHEETS
SINTERING
TABLES
TANTALUM ALLOYS
TUNGSTEN