Aluminum alloy products
The aluminum alloy product of an embodiment of the present invention includes a pair of outer regions and an inner region positioned between the outer regions. A first concentration of eutectic forming alloying elements in the inner region is less than a second concentration of eutectic forming alloying elements in each of the outer regions. Further, the aluminum alloy product has a delta r value of 0 to 0.10. The delta r value is calculated as follows: Absolute Value [(r_L+r_LT−2*r_45)/2] and the r_L is an r value in a longitudinal direction of the aluminum alloy product, the r_LT is an r value in a transverse direction of the aluminum alloy product, and the r_45 is an r value in a 45 degree direction of the aluminum alloy product.
1. An aluminum alloy strip comprising:
a pair of outer regions and
an inner region positioned between the outer regions;
wherein a first concentration of eutectic forming alloying elements in the inner region is less than a second concentration of eutectic forming alloying elements in each of the outer regions;
wherein the aluminum alloy strip comprises an aluminum alloy, wherein the aluminum alloy is selected from the group consisting of 2xxx, 6xxx, and 7xxx series alloys;
wherein the aluminum alloy strip has a delta r value of 0 to 0.10;
wherein the delta r value is calculated as follows:
Absolute Value [( r _ L+r _ LT −2* r _45)/2]
wherein r_L is an r value in a longitudinal direction of the aluminum alloy strip;
wherein r_LT is an r value in a transverse direction of the aluminum alloy strip; and
wherein r_45 is an r value in a 45 degree direction of the aluminum alloy strip.
2. The aluminum alloy strip of claim 1 , wherein a temper of the aluminum alloy strip is selected from the group consisting of T4, T43, and O temper.
3. The aluminum alloy strip of claim 2 , wherein the temper of the aluminum alloy strip is T4.
4. The aluminum alloy strip of claim 2 , wherein the temper of the aluminum alloy strip is T43.
5. The aluminum alloy strip of claim 1 , wherein the aluminum alloy is a 6xxx series alloy.
6. The aluminum alloy strip of claim 1 , wherein the aluminum alloy is a 6022 aluminum alloy.
7. The aluminum alloy strip of claim 1 , wherein the delta r value is 0 to 0.07.
8. The aluminum alloy strip of claim 1 , wherein the delta r value is 0 to 0.05.
9. The aluminum alloy strip of claim 1 , wherein the inner region comprises globular dendrites.