Accession Number:

AD0255011

Title:

RESEARCH AND DEVELOPMENT IN HIGH STRENGTH HEAT RESISTANT ALLOYS

Descriptive Note:

Corporate Author:

WESTINGHOUSE ELECTRIC CORP PITTSBURGH PA

Personal Author(s):

Report Date:

1960-12-30

Pagination or Media Count:

1.0

Abstract:

Problems associated with the Phase II scale-up of Ta-base alloys continued to receive most of the attention. 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 dc power source. The hot rolling studies on 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 C. Additional data were obtained on the elevated temperature hardness of several tantalum-base alloys. Machinability experiments on tungsten ingots gave good results, and conditioning of these ingots no longer presents a major problem. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE