Aluminum alloys and methods of making and use thereof
Disclosed herein are aluminum alloys and methods of making and use thereof.
1 . An aluminum alloy comprising:
from 0.3 to 1.5 wt % Fe;
from 0.2 to 16 wt % Ce;
from 0 to 2% Si; and
the balance comprising Al and optionally additional components;
wherein the ratio of Ce to Fe is 1.2 or more;
wherein the ratio of Ce to Fe being 1.2 or more suppresses formation of a Al 13 Fe 4 phase; and
wherein the aluminum alloy comprises a Al 10 FeCe 2 phase, which neutralizes the detrimental effect of Fe on the mechanical properties of the aluminum alloy.
2 . The aluminum alloy of claim 1 , wherein the aluminum alloy is substantially free of a Al 13 Fe 4 phase.
3 . The aluminum alloy of claim 1 , wherein the aluminum alloy comprises from 0.3 to 1 wt % Fe.
4 . The aluminum alloy of claim 1 , wherein the aluminum alloy comprises 0.2 to 9 wt % Ce.
5 . The aluminum alloy of claim 1 , wherein the aluminum alloy comprises from 0 to 0.5 wt % Si.
6 . The aluminum alloy of claim 1 , wherein the aluminum alloy is substantially free of Si.
7 . The aluminum alloy of claim 1 , wherein the aluminum alloy comprises from 0.3 to 1.5 wt % Fe; from 0.2 to 9 wt % Ce, from 0 to 2% Si; and the balance comprising Al and optionally additional components.
8 . The aluminum alloy of claim 1 , wherein the aluminum alloy comprises from 0.3 to 1 wt % Fe; from 0.2 to 2.5 wt % Ce; from 0 to 0.5% Si; and the balance comprising Al and optionally additional components.
9 . The aluminum alloy of claim 1 , wherein the aluminum alloy comprises 0.3 to 1 wt % Fe, 0.2 to 1.5 wt % Ce, and 0 to 0.5 wt % Si, and the balance comprising Al and optionally additional components.
10 . The aluminum alloy of claim 1 , wherein the AlCeSi phase is substantially absent from the aluminum alloy.
11 . The aluminum alloy of claim 1 , wherein the aluminum alloy further comprises Mn, Mg, Cu, Zn, or a combination thereof.
12 . The aluminum alloy of claim 1 , wherein the aluminum alloy further comprises from 0 to 1 wt % of one or more additional components.
13 . The aluminum alloy of claim 1 , wherein the aluminum alloy comprises from 0.3 to 1.5 wt % Fe; from 0.2 to 16 wt % Ce; from 0 to 2% Si; from 0 to 1 wt % Mn; from 0 to 1 wt % Mg; from 0 to 1 wt % Cu; from 0 to 1 wt % Zn; and the balance comprising Al.
14 . The aluminum alloy of claim 1 , wherein the aluminum alloy comprises from 0.3 to 1.5 wt % Fe; from 0.2 to 9 wt % Ce; from 0 to 2% Si; from 0 to 1 wt % Mn; from 0 to 1 wt % Mg; from 0 to 1 wt % Cu; from 0 to 1 wt % Zn; and the balance comprising Al.
15 . The aluminum alloy of claim 1 , wherein the aluminum alloy has:
a yield strength of from 55 MPa to 120 MPa;
an ultimate tensile strength of from 175 MPa to 250 MPa;
an elongation to failure of from 4% to 12%;
or a combination thereof.
16 . An object or article of manufacture comprising the aluminum alloy of claim 1 .
17 . A method of making the aluminum alloy of claim 1 , the method comprising:
heating a precursor aluminum alloy to a first temperature to melt the precursor aluminum alloy, thereby forming a molten precursor aluminum alloy; and
adding Ce to the molten precursor aluminum alloy;
thereby forming the aluminum alloy.