columbus · Effects of Purity Level on the Mechanical Properties of 7000-Series Aluminums

Effects of Purity Level on the Mechanical Properties of 7000-Series Aluminums

Title: Effects of Purity Level on the Mechanical Properties of 7000-Series Aluminums
Date: 1980
Index Abstract: Coming Soon
Photo Quality: Incomplete
Report Number: AFWAL TR 80-4079
Creator: Petrak, G. J.
Corporate Author: Materials Laboratory
Date Issued: 1980-10-01
Extent: 58
Identifier: ADA092592
Distribution Classification: 1
Contract: Laboratory Research - No Contract
DoD Project: 2418
DoD Task: 241807
DTIC Record Exists: No
Distribution Change Authority Correspondence: None
Abstract: The effect of purity level on the mechanical properties of high strength aluminum alloys was studied. Seven extrusions, representing three alloys, were tested for their mechanical properties. Three extrusions were 7049-T73511, one was 7050-T73511, and the remaining were 7075-T73511. The 7049 and 7075 extrusions were manufactured in three purity levels, indexed to iron and silicon. When going from high purity to low purity, the following observations were made; the tensile strength dropped slightly, the fracture toughness fell dramatically and fatigue and fatigue crack growth rate properties were not affected in a systematic manner. Stress corrosion cracking tests showed there does not appear to be a corrosion problem for any of the materials of purity levels.
Report Availability: Full text available by request
Provenance: IIT
Type: report
Format: 58 pages ; 28 cm.