Overview
Al 7475-T7351 is a controlled toughness alloy developed by Alcoa Laboratories for sheet and plate applications that require a combination of high strength, superior fracture toughness and resistance to fatigue crack propagation. More information on fatigue life cycle data can be found on:
Al 7475-T7351 chemical decomposition is shown on Table 1.
Table 1: Chemical Composition Limits for Al 7475-T7351 alloy [1] (WT. %)
| element
|
[weight %]
|
| Si |
max 0.10%
|
| Fe |
max 0.12%
|
| Cu |
1.2-1.9%
|
| Mn |
max 0.06%
|
| Mg |
1.9-2.6%
|
| Cr |
0.18-0.25%
|
| Zn |
5.2-6.2%
|
| Ti |
max 0.06%
|
| Others, each |
max 0.05%
|
| Others, total |
max 0.15%
|
| Aluminium |
remainder
|
Tensile stress-strain data (Fig.1 and 2)
 Figure 1. Typical tensile stress-strain curves at temperature for 7475-T7351 aluminum alloy plate (longitudinal) [1] |
 Figure 2. Typical tensile stress-strain curves at temperature for 7475-T7351 aluminum alloy plate (transverse) [1] |
Compression stress-strain data (Fig.3 and 4)
 Figure 3. Typical compressive stress-strain and tangent modulus curves at temperature for 7475-T7351 aluminum alloy plate (longitudinal) [1] |
 Figure 4. Typical compressive stress-strain and tangent modulus curves at temperature for 7475-T7351 aluminum alloy plate (transverse) [1] |
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Omar L. Deel, Paul E. Ruff, and H. Mindlin, ENGINEERING DATA ON NEW AEROSPACE STRUCTURAL MATERIALS, Battelle Columbus Laboratories, June 1975
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