Accession Number:

AD0271412

Title:

THE PRODUCTION AND WELDING OF HEAVY TI-13V-11CR-3A1 TITANIUM ALLOY PLATE

Descriptive Note:

Corporate Author:

TITANIUM METALS CORP OF AMERICA TORONTO OHIO

Personal Author(s):

Report Date:

1961-11-17

Pagination or Media Count:

1.0

Abstract:

IT WAS DEMONSTRATED THAT TWO-INCH THICK Ti-13V11Cr-3Al plate could be welded in open air by an automatic inert gas metal-arc welding process without excessive contamination. A mixture ofA and He was the most effective gas for the welding torch. The use of matching filler material in the weld resulted in severe cracking. A 500 F pre-heat eliminated gross cracking, but there was still evidence of micro-cracking in the weld. The use of dissimilar filler materials Ti-6Al4V and Ti-8Al-1Mo-1V without preheat produced crack-free welds. A weld made with commercially pure Ti filler developed longitudinal cracks. All the welds tested for mechanical properties were radiographed. There was no evidence of porosity, internal cracking, or other defects. In general, the heat affected zones of the welds exhibited tensile and impact strengths equivalent to those of the base metal, but ductilities were slightly lower. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE