THE MANUFACTURE OF TI-7A1-12ZR SHEETS
Abstract
AFTER AIR ANNEALING. Creep tests were conducted on 0.040 in. sheet heat treated at 1450 to 1800 F for 20 min. The results of tensile tests showed that the greater annealed ductility (16.3%) resulted from heat treating at 1600 F, while the greatest exposed ductility (15.25%) occurred after heat treating at 1550 F. Metallographic studies revealed that recrystallization was occurring at annealing temperatures up to at least 1450 F. Above this temperature, grain growth was evident. Creep tests showed that 0.040 sheet exhibited its best creep strength when annealed above 1550 F, and its best ductility after creep when annealed at 1550 to 1600 F; 1575 was selected as the most satisfactory annealing temperature. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1961
- Accession Number
- AD0264780
Entities
People
- J.k. Dietzel
- S.r. Seagle