FRACTURE RESISTANCE CHARACTERISTICS OF Ti-6Al-2Mo AND Ti-6Al-4V IN 3 IN. THICK SECTIONS
Abstract
The fracture resistance properties of Ti-6Al-2Mo (6-2) and Ti-6Al-4V (6-4) alloys in 3 in. (7.6 cm) rolled plate section were investigated using the Dynamic Tear (DT) test and fracture mechanics tests, together with associated Ratio Analysis Diagram (RAD) procedures. The subject materials were low-oxygen (O2 < 0.08 wt percent) alloys rolled from 12,000 lb. (5450 kg) ingots; the 6-2 alloy was beta forged and beta rolled from 2050F (1120C) while the 6-4 alloy was beta forged at 2050F (1120C) and alpha-beta rolled at 1750F (970C). Full- thickness DT tests and standard 1 in. DT tests of specimens at plate surface and center locations of both plates in the as-rolled condition revealed considerable anisotropy with respect to fracture resistance for both plates. A high degree of variation of toughness properties through the thickness of the as-rolled plates was also recorded.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1970
- Accession Number
- AD0711586
Entities
People
- C. N. Freed
- R. W. Huber
- R. W. Judy Jr.
- Robert J. Goode
Organizations
- United States Naval Research Laboratory