Accession Number:

AD0272102

Title:

MATERIAL, 4A1-3MO-1V TITANIUM ALLOY (FMS-0132) COMPRESSION YIELD STRENGTH, EFFECT OF STRETCHING AND SHORT TIME AGE, CYCLE ON

Descriptive Note:

Corporate Author:

GENERAL DYNAMICS/FORT WORTH TEX

Personal Author(s):

Report Date:

1962-01-17

Pagination or Media Count:

1.0

Abstract:

The effects of form-aging were determined on a single sheet of 0.040-in.- gage 4Al-3Mo-1V Ti alloy. Testing was on specimens that had received the standard age cycle, and on specimens stretched at 1075 and 1125 F. The times at 1075 and 1125 F were 7.5 and 15 min. Specimens were tested to determine the effects of these cycles on the tensile ultimate and yield strength, on the compressive yield strength in the longitudinal and transverse directions, and the notched tensile strength. The material subjected to the form aging cycle showed losses in strength of 10 to 15. The NSTS ratio increased from 0.8 to 0.9. The effects of the form-aging were, in most instances, larger at the longer exposure to elevated, form-aging temperatures. The greater scatter in test results occurred in the material given the 15 min stretching process at 1125 F, and may have been associated with the temperature control during stretching. Within any group of specimens, variations in plastic deformation produced during the form-aging cycle did not cause corresponding variations in mechanical properties. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE