SEDL / STP / STP432-EB / STP33628S

Biaxial Properties of Titanium Alloys at Cryogenic Temperatures

Frederick, SF
Section chief, and research engineer, Douglas Aircraft Co., Santa Monica, Calif.

Corn, DL
Section chief, and research engineer, Douglas Aircraft Co., Santa Monica, Calif.

Pages: 9    Published: Jan 1968

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Abstract

The biaxial properties of Ti-6Al-4V and Ti-5Al-2.5Sn were determined at -423 F. Texture strengthening was found to be operative at this temperature, but the magnitude of the increase in strength over uniaxial properties could not be predicted from tension-test techniques for measuring texture strengthening. The strengths of welded joints in Ti-6Al-4V at -423 F were found to be equal to that of the textured parent metal. The dependence of texture strengthening on temperature, strain, and stress state is discussed.