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

Patent metadata

Field	Value
Publication number	US-2019112690-A1
Application number	US-201615765952-A
Country	US
Kind code	A1
Filing date	Oct 28, 2016
Priority date	Nov 2, 2015
Publication date	Apr 18, 2019
Grant date	—

Abstract

Embodiments disclosed herein related to superalloy compositions and applications using the same. The superalloy compositions disclosed herein including at least one ternary intermelallic 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 clement 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 intermelallic 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

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 ] where; 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 [Nb X V Y ], 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 [Al X Ta Y ], Ni Z [Al X W 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 9 , Ni Z [Be X Nb Y ], Ni Z [Be X Sb Y ], Ni Z [Be X Si Y ], Ni Z [Be XC 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 k ], Ni Z [Hf X Si Y ], Ni Z [Hf X Ti Y ], Ni Z [Hf X Sc Y ], Ni Z [Hf X Si 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 [Mn X Sb 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 [Si X Sn Y ], Ni Z [Si X Ti Y ], Ni Z [Si X Zr Y ], Ni Z [Sn X Sb Y ], Ni Z [Ta X Zn Y ], Ni Z [Ti X Zr 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 [Nb X V Y ], 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 Tay], 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 [Hf X Si Y ], Ni Z [In X V Y ], Ni Z [Ir X Si Y ], Ni Z [Mn X Sb 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 Tay], 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 [Si X Sn 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 [Nb X V Y ], Co Z [Ta X V Y ], Ni Z [Hf X Si Y ], Ni Z [Mn X Sb 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 [Nb X V Y ], 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 . (canceled)

6 . 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 ], [ [and] ] 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 ], and Ni Z [Hf X Si Y ].

7 . (canceled)

8 . 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 [Mn X Sb 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 ].

9 . (canceled)

10 . 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 [Si X Sn 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 ].

11 . (canceled)

12 . 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 [Al 0.5 Ta 0.5 ], Ni 3 [Al 0.5 W 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 ].

13 . 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 Ti Y , Ni Z Hf X Sc Y , Ni Z Hf X Zr Y , Ni Z Si X Ti Y , Ni Z Sc X Ti Y , and Ni Z Hf X Si Y .

14 . (canceled)

15 . 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 Al X Ta Y , Ni Z Sc X Si Y , Ni Z Si X Zr Y , Ni Z Al X Sc Y , Ni Z Ti X Zr Y , Ni Z Sc X Zr Y and Ni Z Sc X Ta Y .

16 - 26 . (canceled)

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

28 . The superalloy composition of claim 27 wherein each of X and Y is about 0.5.

29 . The superalloy composition of claim 27 wherein a sum of X and Y is about 1.

30 . The superalloy composition of claim 27 wherein a sum of X and Y is less than about 1.

31 . The superalloy composition of claim 27 wherein a sum of X and Y is greater than about 1.

32 . 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 .

33 . 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 .

34 . (canceled)

35 . (canceled)

36 . 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.

37 . (canceled)

38 . (canceled)

39 . 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.

40 . 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.

41 . The superalloy composition of claim 40 , wherein the second phase exhibits a crystal structure mismatch with the first phase that i

Assignees

• Univ Brigham Young

Inventors

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

Classifications

• C22C19/07

  based on cobalt · CPC title

• C22C19/03 Primary

  based on nickel · CPC title

• C22C38/02

  containing silicon · CPC title

• C22C30/00

  Alloys containing less than 50% by weight of each constituent · CPC title

• C22C38/002

  containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60 · CPC title