TITANIUM SHEET ROLLING PROGRAM FOR TI-8A1-1MO-1V, TI-5A1-5SN-5ZR, AND TI-7A1-12ZR
Abstract
A laboratory evaluation of duplex annealed Ti8Al-1Mo-1V sheet showed that 1850 F (5 min) and air cooled (AC) + 1100 F (8 hr) provided an optimum combination of room-and elevated-temperature tensile, sub-zero temperature notch tensile, and creep properties. Contamination was found to extend to a depth of 0.002-0.0025 in., which is entirely commensurate with finish grinding and/or pickling procedures being used. A more extended study of the effect of finish annealing temperature on the creep-stability properties of Ti-5Al-5Sn-5Zr and Ti-7Al-12Zr sheets resulted in the selection of 1650 F (1/2 hr) AC as the optimum final annealing cycle for both alloys. Preliminary evaluation of welded Ti-5Al5Sn-5Zr and Ti-7Al-12Zr showed that good aswelded and welded-and-annealed properties can be achieved. Other laboratory investigations in progress include H studies and a more thorough evaluation of various elevated-and sub-zero temperature properties.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 31, 1961
- Accession Number
- AD0264815
Entities
People
- D. L. Day
- D. R. Mitchell
- H. D. Kessler