Accession Number:

AD0255012

Title:

RESEARCH AND DEVELOPMENT IN HIGH STRENGTH HEAT RESISTANT ALLOYS

Descriptive Note:

Corporate Author:

WESTINGHOUSE ELECTRIC CORP PITTSBURGH PA

Personal Author(s):

Report Date:

1961-02-27

Pagination or Media Count:

1.0

Abstract:

A total of ten 6-lb Ta alloy ingots have been vacuum arc melted successfully using ac power. These ingots and six others previously melted with dc power were extruded at temperatures up to 1700 C in a Dynapak high energy rate machine. Thirteen of these ingots were extruded with excellent results, one hung up in the die, and two broke up completely when passing through the die. Four extrusions were rolled to 0.100-in.thick strip in stainless steel cans at 1200 C. Tensile test specimens from the strip are being tested at room, elevated and sub-zero temperatures. Metallographic and hardness data on the Ta-Zr and Ta-Hf binary systems were correlated and preliminary conclusions drawn. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE