HCP MATERIALS OF ALUMINUM, TITANIUM, AND ZIRCONIUM, AND PRODUCTS MADE THEREFROM

1 . A composition of matter comprising:

29.0-42.4 wt. % Al;

41.2-59.9 wt. % Ti; and

10.3-24.1 wt. % Zr;

the balance being any optional incidental elements and impurities.

2 . The composition of matter of claim 1 , wherein the incidental elements comprise up to 0.15 wt. % carbon and up to 0.15 wt. % B.

3 . The composition of matter of claim 1 , wherein the composition of matter includes 32.3-38.5 wt. % Al, 45.8-54.5 wt. % Ti, and 11.5-21.9 wt. % Zr.

4 . An alloy body comprising:

29.0-42.4 wt. % Al;

41.2-59.9 wt. % Ti; and

10.3-24.1 wt. % Zr;

the balance being any optional incidental elements and impurities.

5 . The alloy body of claim 4 , wherein the alloy body is in the form of an aerospace or automotive component.

6 . The aerospace component of claim 5 , wherein the aerospace or automotive component is a turbine.

7 . The alloy body of claim 4 , wherein the alloy body is in the form of an additively manufactured product.

8 . A method comprising:

(a) using a feedstock in an additive manufacturing apparatus, wherein the feedstock comprises:

29.0-42.4 wt. % Al;

41.2-59.9 wt. % Ti; and

10.3-24.1 wt. % Zr;

(b) producing a metal product in the additive manufacturing apparatus using the feedstock.

9 . The method of claim 8 , wherein the feedstock comprises a powder feedstock, wherein the method comprises:

(a) dispersing a metal powder of the powder feedstock in a bed and/or spraying a metal powder of the powder feedstock towards or on a substrate;

(b) selectively heating a portion of the metal powder above its liquidus temperature, thereby forming a molten pool;

(c) cooling the molten pool, thereby forming a portion of the metal product, wherein the cooling comprises cooling at a cooling rate of at least 100° C. per second; and

(d) repeating steps (a)-(c) until the metal product is completed, wherein the metal product comprises a metal matrix, wherein the Al, Ti, and Zr make-up the matrix.

10 . The method of claim 8 , wherein the feedstock comprises a wire feedstock, wherein the method comprises:

(a) using a radiation source to heat the wire feedstock above its liquidus point, thereby creating a molten pool, wherein the molten pool comprises Al, Ti, and Zr;

(b) cooling the molten pool at a cooling rate of at least 1000° C. per second; and

(c) repeating steps (a)-(b) until the metal product is completed, wherein the metal product comprises a metal matrix, wherein the Al, Ti, and Zr make-up the matrix.

11 . The method of claim 8 , comprising: cooling at a rate sufficient to form at least one precipitate phase.

12 . The method of claim 11 , wherein the at least one precipitate phase comprises at least one of L1 0 and Al 2 Zr.

13 . The method of claim 12 , wherein the metal product comprises at least 0.5 vol. % of the precipitate phase.

14 . The method of claim 8 , comprising:

working the metal product.

15 . The method of claim 14 , wherein the metal product is a final additively manufactured body and wherein the working is working of the final additively manufactured body

16 . The method of claim 8 , wherein the producing step comprises:

first producing a portion of the metal product using the feedstock;

second producing another portion of the metal product using the feedstock;

wherein the working occurs at least after the first or second producing steps.

17 . The method of claim 16 , wherein the working occurs between the first producing step and the second producing step.

18 . The method of claim 16 , wherein the working comprises one or more of rolling, forging, extrusion and hot isostatic pressing.