LOW-TEMPERATURE MECHANICAL PROPERTIES AND FRACTURE TOUGHNESS OF TI-6AL-6V-2SN.
Abstract
The mechanical properties of Ti-6Al-6V-2Sn have been evaluated in the temperature range from +200 to -269C. A commercial and an extra-low interstitial (ELI) grade of the alloy were studied in both the as-received and heattreated conditions. The ELI grade was heat treated to two different microstructures each havine a yield strength level from 170 to 180 ksi. The data show that fatigue cracks severely reduced the notch strength and resulted in lower K sub Ic values than when sharply machinenotched. The material treated at the higher solution temperature exhibited higher K sub Ic values than that heat treated at the lower solution temperature, despite the higher alpha-beta ratio of the latter condition. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1965
- Accession Number
- AD0620745
Entities
People
- Charles F. Hickey Jr.
- Thomas S. Desisto
Organizations
- United States Army Research Laboratory