Superalloys compositions including at least one ternary intermetallic compound and applications thereof

Patent metadata

Field	Value
Publication number	US-11214851-B2
Application number	US-201615765952-A
Country	US
Kind code	B2
Filing date	Oct 28, 2016
Priority date	Nov 2, 2015
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

Embodiments disclosed herein related to superalloy compositions and applications using the same. The superalloy compositions disclosed herein including at least one ternary intermetallic compound having a general chemical composition of A Z [B X C Y ]. Base element A is selected from the group consisting of cobalt, iron, and nickel; and element B and element C are independently selected from different members of a group consisting 40 elements of the periodic table. Base element A, element B, and element C are each different elements. Z is about 2.1 to about 3.9. X and Y are about 0.1 to about 1.9. Additionally, the at least one ternary intermetallic compound of each of the superalloy compositions exhibits the face-centered cubic structure L1 2 . The at least one ternary intermetallic compound of each of the ternary superalloy compositions may exhibit a theoretical formation enthalpy and a decomposition energy less than Co 3 [Al, W].

First claim

What is claimed is:

1. A superalloy composition, comprising:
at least one ternary intermetallic compound exhibiting a calculated decomposition energy that is less than 66 meV/atom at T=0K and a calculated formation enthalpy at T=0K that is less than −127 meV, the at least one ternary intermetallic compound having chemical formula of A Z [B X C Y ];
wherein a base element A, an element B, and an element C are chosen such that the at least one ternary intermetallic compound is selected from the group consisting of Co Z [Re X Ti Y ], Co Z [Ta X V Y ], Fe Z [Ga X Si Y ], Ni Z [Al X Rh Y ], Ni Z [Al X Sb Y ], Ni Z [Al X Sc Y ], Ni Z [Au X Ta Y ], Ni Z [Be X Fe Y ], Ni Z [Be X Ga Y ], Ni Z [Be X Mn Y ], Ni Z [Be X Nb Y ], Ni Z [Be X Sb Y ], Ni Z [Be X Si Y ], Ni Z [Be X Ta Y ], Ni Z [Be X Ti Y ], Ni Z [Be X V Y ], Ni Z [Be X W Y ], Ni Z [Co X Sc Y ], Ni Z [Ga X Ir Y ], Ni Z [Ga X Nb Y ], Ni Z [Ga X Sb Y ], Ni Y [Ga X Ta Y ], Ni Z [Ga X Ti Y ], Ni Z [Ga X V Y ], Ni Z [Hf X Sc Y ], Ni Z [Hf X Zr Y ], Ni Z [In X Sb Y ], Ni Z [In X Ta Y ], Ni Z [In X V Y ], Ni Z [Ir X Si Y ], Ni Z [Nb X Pd Y ], Ni Z [Nb X Pt Y ], Ni Z [Nb X Sc Y ], Ni Z [Nb X Zn Y ], Ni Z [Pd X Ta Y ], Ni Z [Pt X Si Y ], Ni Z [Pt X Ta Y ], Ni Z [Pt X Ti Y ], Ni Z [Sb X Si Y ], Ni Z [Sb X Ti Y ], Ni Z [Sb X Zn Y ], Ni Z [Sc X Si Y ], Ni Z [Sc X Ta Y ], Ni Z [Sc X Ti Y ], Ni Z [Sc X V Y ], Ni Z [Sc X Zn Y ], Ni Z [Sc X Zr Y ], Ni Z [Sn X Sb Y ], Ni Z [Ta X Zn Y ], Ni Z [V X Zn Y ], Ni Z [W X Zn Y ], and Ni Z [Zn X Zr Y ];
Z is about 2.1 to about 3.9; and
X and Y are each about 0.1 to about 1.9.

2. The superalloy composition of claim 1 wherein the at least one ternary intermetallic compound is selected from the group consisting of Co Z [Re X Ti Y ], Co Z [Ta X V Y ], Fe Z [Ga X Si Y ], Ni Z [Al X Rh Y ], Ni Z [Au X Ta Y ], Ni Z [Be X Fe Y ], Ni Z [Be X Ga Y ], Ni Z [Be X Mn Y ], Ni Z [Be X Nb Y ], Ni Z [Be X Sb Y ], Ni Z [Be X Si Y ], Ni Z [Be X Ta Y ], Ni Z [Be X Ti Y ], Ni Z [Be X V Y ], Ni Z [Be X W Y ], Ni Z [Co X Sc Y ], Ni Z [Ga X Ir Y ], Ni Z [In X V Y ], Ni Z [Ir X Si Y ], Ni Z [Nb X Pd Y ], Ni Z [Nb X Pt Y ], Ni Z [Nb X Zn Y ], Ni Z [Pd X Ta Y ], Ni Z [Pt X Si Y ], Ni Z [Pt X Ta Y ], Ni Z [Pt X Ti Y ], Ni Z [Sb X Si Y ], Ni Z [Sb X Ti Y ], Ni Z [Sc X Zn Y ], Ni Z [Ta X Zn Y ], Ni Z [V X Zn Y ], Ni Z [W X Zn Y ], and Ni Z [Zn X Zr Y ].

3. The superalloy composition of claim 2 wherein the at least one ternary intermetallic compound is selected from the group consisting of Co Z [Ta X V Y ], Ni Z [Sb X Si Y ], and Ni Z [Sb X Ti Y ].

4. The superalloy composition of claim 2 wherein the at least one ternary intermetallic compound is selected from the group consisting of Co Z [Re X Ti Y ], Co Z [Ta X V Y ], Fe Z [Ga X Si Y ], Ni Z [Al X Rh Y ], Ni Z [Au X Ta Y ], Ni Z [Be X Fe Y ], Ni Z [Be X Ga Y ], and Ni Z [Be X Mn Y ].

5. The superalloy composition of claim 2 wherein the at least one ternary intermetallic compound is selected from the group consisting of Ni Z [Be X Nb Y ], Ni Z [Be X Sb Y ], Ni Z [Be X Si Y ], Ni Z [Be X Ta Y ], Ni Z [Be X Ti Y ], Ni Z [Be X V Y ], Ni Z [Be X W Y ], Ni Z [Co X Sc Y ], and Ni Z [Ga X Ir Y ].

6. The superalloy composition of claim 2 wherein the at least one ternary intermetallic compound is selected from the group consisting of Ni Z [In X V Y ], Ni Z [Ir X Si Y ], Ni Z [Nb X Pd Y ], Ni Z [Nb X Pt Y ], Ni Z [Nb X Zn Y ], Ni Z [Pd X Ta Y ], Ni Z [Pt X Si Y ], Ni Z [Pt X Ta Y ], and Ni Z [Pt X Ti Y ].

7. The superalloy composition of claim 2 wherein the at least one ternary intermetallic compound is selected from the group consisting of Ni Z [Sb X Si Y ], Ni Z [Sb X Ti Y ], Ni Z [Sc X Zn Y ], Ni Z [Ta X Zn Y ], Ni Z [V X Zn Y ], Ni Z [W X Zn Y ], and Ni Z [Zn X Zr Y ].

8. The superalloy composition of claim 1 wherein the base element A, the element B, and the element C are chosen such that the at least one ternary intermetallic compound is selected from the group consisting of Ni 3 [In 0.5 Ta 0.5 ], Ni 3 [Nb 0.5 Sc 0.5 ], Ni 3 [Nb 0.5 Zn 0.5 ], Ni 3 [Sc 0.5 Ta 0.5 ], Ni 3 [Sc 0.5 Ti 0.5 ], Ni 3 [Sc 0.5 V 0.5 ], Ni 3 [Ta 0.5 Zn 0.5 ], Ni 3 [V 0.5 Zn 0.5 ], Ni 3 [W 0.5 Zn 0.5 ], Ni 3 [Al 0.5 Sb 0.5 ], Ni 3 [Ga 0.5 Nb 0.5 ], Ni 3 [Ga 0.5 Sb 0.5 ], Ni 3 [Ga 0.5 Ta 0.5 ], Ni 3 [Ga 0.5 Ti 0.5 ], Ni 3 [Ga 0.5 V 0.5 ], Ni 3 [In 0.5 Sb 0.5 ], Ni 3 [Sn 0.5 Sb 0.5 ], and Ni 3 [Sb 0.5 Zn 0.5 ].

9. The superalloy composition of claim 1 wherein the base element A, the element B, and the element C are chosen such that the at least one ternary intermetallic compound is selected from the group consisting of Ni Z Hf X Sc Y , Ni Z Hf X Zr Y , and Ni Z Sc X Ti Y .

10. The superalloy composition of claim 1 wherein the base element A, the element B, and the element C are chosen such that the at least one ternary intermetallic compound is selected from the group consisting of Ni Z Sc X Si Y , Ni Z Al X Sc Y , Ni Z Sc X Zr Y , and Ni Z Sc X Ta Y .

11. The superalloy composition of claim 1 wherein Z is about 3.

12. The superalloy composition of claim 11 wherein each of X and Y is about 0.5.

13. The superalloy composition of claim 11 wherein a sum of X and Y is about 1.

14. The superalloy composition of claim 11 wherein a sum of X and Y is less than about 1.

15. The superalloy composition of claim 11 wherein a sum of X and Y is greater than about 1.

16. The superalloy composition of claim 1 wherein the at least one ternary intermetallic compound exhibits a calculated density at T=0K of about 9.0 g/cm 3 to about 11 g/cm 3 .

17. The superalloy composition of claim 1 wherein the at least one ternary intermetallic compound exhibits a calculated density at T=0K of about 7.2 g/cm 3 to about 9 g/cm 3 .

18. The superalloy composition of claim 1 wherein the calculated formation enthalpy at T=0K of the at least one ternary intermetallic compound is less than about −200 meV.

19. The superalloy composition of claim 1 wherein the calculated decomposition energy of the at least one ternary intermetallic compound is less than about 30 meV/atom at T=0K.

20. The superalloy composition of claim 1 further comprising a plurality of phases, the plurality of phases including a first phase that forms a substantially continuous matrix and a second phase that is a precipitate in the first phase, the first phase is different than the second phase; and
one of the first phase or the second phase includes the at least one ternary intermetallic compound.

21. The superalloy composition of claim 20 , wherein the second phase exhibits a crystal structure mismatch with the first phase that is about 0% to about 5%.

Assignees

• Univ Brigham Young

Inventors

• Nyshadham Chandramouli
• Hansen Jacob E
• Hart Gus L W

Classifications

• C22C19/002

  with copper as the next major constituent · CPC title

• C22C19/005

  with Manganese as the next major constituent · CPC title

• C22C19/007

  with a light metal (alkali metal Li, Na, K, Rb, Cs; earth alkali metal Be, Mg, Ca, Sr, Ba, Al Ga, Ge, Ti) or B, Si, Zr, Hf, Sc, Y, lanthanides, actinides, as the next major constituent · CPC title

• C22C19/00

  Alloys based on nickel or cobalt · CPC title

• C22C19/05

  with chromium · CPC title