Accession Number:

AD0649187

Title:

ANALYSIS OF STRESS-CORROSION CRACKING OF TI-6AL-4V FUEL TANK MATERIAL IN METHYL ALCOHOL.

Descriptive Note:

Memorandum rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

• Meyn,D. A.
• Dahlberg,E. P.
• Beachem,C. D.

Report Date:

1967-01-01

Pagination or Media Count:

24.0

Abstract:

Material from a high yield strength 6Al-4V titanium alloy space vehicle fuel tank was found to be susceptible to stress-corrosion cracking in methyl alcohol by an unidentified cleavage mechanism. Cracks propagated in contact with methanol at plane strain stress intensities as low as 15 ksi in. The same material was found to be somewhat susceptible to cracking in distilled water, by the same mechanism, with a crack propagating at a plane strain stress intensity of about 30 ksi in. Author

Descriptors:

• (*TITANIUM ALLOYS
• STRESS CORROSION)
• (*CRACKS
• TITANIUM ALLOYS)
• CARBINOLS
• FUEL TANKS
• ALUMINUM ALLOYS
• VANADIUM ALLOYS
• CRACK PROPAGATION

Subject Categories:

• Properties of Metals and Alloys
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE