TITANIUM SHEET ROLLING PROGRAM FOR TI-8A1-1MO-1V, TI-5A1-5SN-5ZR, AND TI-7A1-12ZR
Abstract
Tensile and bend properties were obtained on 30 pilot sheets of Ti-8Al-1Mo-1V alloy, which indicated t at mill annealing for 4 hr at 1450 deg F provides sub-standard creep resistance at 1000 deg F. Additional laboratory studies showed that a much better combination of properties is achieved by mill annealing for 8 hr at 1450 deg F. The 92 remaining sheets from the five 1600-lb heats were finish rolled from 1800 deg F and will be mill annealed at 1450 deg F (8 hr). Preliminary evaluation of the initial sheets of Ti-5Al-5Sn-5Zr and Ti-7Al-12Zr alloy was completed including notch and standard tensile properties at several different temperatures and 1000 deg F creep-stability studies. An optimum finish rolling temperature of 1750 deg F was esta lished for both alloys, b t additional studies are required before the optimum final annealing temperature can be selected. Melting of three 1700-lb ingots of each of Ti-5Al-5Sn-5Zr and Ti-7Al-12Zr alloys was scheduled for production.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 07, 1961
- Accession Number
- AD0264475
Entities
People
- D. L. Day
- H. D. Kessler