 |
|
|
 |
|
 |
| |
Welcome to ProQuest-CSA, your Guide to Discovery. ProQuest-CSA helps researchers worldwide find and manage relevant information in their field. If you're a member of an academic institution you may have access to CSA Illumina. Please contact your library to find out. |
|
 |
|
 |
|
Strengthening in the new aluminum alloy AA 6069
Kassner, M E | Bergsma, S C | Li, X | Wall, M A
Materials Science and Engineering A (Switzerland). Vol. 254, no.
1-2, pp. 112-118. 15 Oct. 1998
AA 6069, a new aluminum alloy, has been developed for application
in hot and cold extrusion and forging. The nominal composition is
0.85% Si, 0.25% Fe, 0.70% Cu, 1.35% Mg, 0.20% Cr, and 0.15% V.
Average T6 properties of the ingot without hot or cold deformation
are 410 MPa ultimate tensile strength, 375 MPa yield strength, and
12% elongation. Average properties after hot and/or cold extrusion
in the T6 condition range from 394-476 MPa ultimate tensile
strength, 353-448 MPa yield strength, and 14-20% elongation. This
alloy also has favorable fatigue, corrosion-fatigue,
stress-corrosion, and sustained load cracking properties due to a
combination of composition, high solidification rate, thermal and
mechanical processing, and T6 practice. Careful TEM, SEM, optical
metallography, and EDS were used to characterize the precipitation
features and the basis for improved mechanical properties over
alloys such as 6061-T6.
 Descriptors: Aluminum base alloys | Alloy development | Extrusions | Mechanical
properties | Forgings | Strain hardening | Precipitation hardening | Tensile strength | Processing effects | Yield strength | Elongation | Fatigue strength | Stress corrosion cracking | Extrusion | Precipitation heat treatment
|
|
|
|
