Systems and methods for producing and using a metallic powder

Abstract

A metallic powder may be produced by coating nickel alloy particles with yttrium oxide. The nickel alloy particles may include at least 59 weight percent (wt %) nickel (Ni), 9.9 - 10 wt % cobalt (Co), 8.3 - 8.4 wt % chromium (Cr), 0.65-0.72 wt % molybdenum (Mo), 5.4 - 5.5 aluminum (Al), and 1.0 - 1.1 titanium (Ti). The metallic power may include 0.01 - 0.5 wt % yttrium (Y). An additive manufacturing process such as laser bed power fusion may be used to produce engine parts from the powder. The nickel alloy particles may be MARM 247 particles and the metallic powder may be MARM 247 particles coated with yttrium oxide. The engine parts produced from the metallic powder may outperform similar parts made from uncoated MARM 247 by experiencing less creep at high temperatures.

Description

Attorney Docket No. BEEHI-1037PCT Patent ApplicationSYSTEMS AND METHODS FOR PRODUCING AND USING A METALLIC POWDERCROSS REFERENCE TO RELATED APPLICATIONS

[0001] This patent application claims the priority and benefit of U.S. provisional patent application no. 63 / 700,093, titled “SYSTEMS AND METHODS FOR PRODUCING AND USING A METALLIC POWDER” filed on September 27, 2024. U.S. provisional patent application no. 63 / 700,093 is herein incorporated by reference in its entirety.TECHNICAL FIELD

[0002] The systems and methods relate to materials for additive manufacturing, 3D printing, and laser powder bed fusion (LPBF) additive manufacturing. The systems and methods also relate to nickel alloys such as MARM 247 and to coating nickel alloy particles with yttrium oxide (Y2O3) to produce a metallic powder for additively manufacturing engine parts.BACKGROUND

[0003] Advanced alloys have been used to make engine parts (e.g., combustion chambers of jet engines and rocket motors) that must withstand high temperatures without failing. MARM 247 is a nickel alloy that has been used for engine parts for at least 3 decades. One aspect of MARM 247 is that it is approximately 10 weight percent (wt %) cobalt (e.g., 9.9 - 10 wt %). Cobalt is known to be a gamma phase former in such alloys. More recent alloys include Cantor alloys such as GRX-810. The Cantor alloys may be at least 18 wt % Cobalt (Co). For example, GRX-810 is approximately 33 wt % Co. “Creep” is one of the failure modes experienced by engine parts. Creep occurs when volumes of the engine material may shift, or creep, relative to one another. GRX-810 was formulated to combat creep. System and methods for reducing creep in engine parts formed from MARM 247 and similar alloys are needed.Attorney Docket No. BEEHI-1037PCT Patent ApplicationBRIEF SUMMARY

[0004] The following summary is provided to facilitate an understanding of some of the innovative features unique to the examples disclosed and is not intended to be a full description. A full appreciation of the various aspects of the examples can be gained by taking the entire specification, claims, drawings, and abstract as a whole.

[0005] One aspect of the subject matter described in this disclosure can be implemented by a method. The method may include coating a plurality of MARM 247 particles with yttrium oxide to produce a metal powder configured for additive manufacturing of metal parts.

[0006] Another aspect of the subject matter described in this disclosure can be implemented by a method. The method may include coating a plurality of nickel alloy particles with yttrium oxide to produce a metal powder configured for additive manufacturing of metal parts, wherein the nickel alloy particles include at least 59 weight percent (wt %) nickel (Ni), 9.9 - 10 wt % cobalt (Co), 8.3 - 8.4 wt % chromium (Cr), 0.65-0.72 wt % molybdenum (Mo), 5.4 - 5.5 aluminum (Al), and 1.0 - 1.1 titanium (Ti).

[0007] Yet another aspect of the subject matter described in this disclosure can be implemented by a method. The method may include additively manufacturing an engine part from a metallic powder that includes nickel alloy particles coated with yttrium oxide, wherein the nickel alloy particles include at least 59 weight percent (wt %) nickel (Ni), 9.9 - 10 wt % cobalt (Co), 8.3 - 8.4 wt % chromium (Cr), 0.65-0.72 wt % molybdenum (Mo), 5.4 - 5.5 aluminum (Al), and 1.0 - 1.1 titanium (Ti).

[0008] In some implementations of the methods and devices, the metallic powder includes 0.01 - 0.5 wt % yttrium (Y). In some implementations of the methods and devices, the MARM 247 particles are formed of MARM 247 that includes at least 59 weight percent (wt %) nickel (Ni), 9.9 - 10 wt % cobalt (Co), 8.3 - 8.4 wt % chromium (Cr), 0.65-0.72 wt % molybdenum (Mo), 5.4 - 5.5 aluminum (Al), and 1.0 - 1.1 titanium (Ti). In some implementations of the methods and devices, the metallic powder includes 0.01 - 0.5 wt % yttrium (Y). In some implementations of the methods and devices, the method further includes additively manufacturing a jet engine part from the metal powder. In someAttorney Docket No. BEEHI-1037PCT Patent Application implementations of the methods and devices, the jet engine part is formed from an alloy that includes at least 59 wt % Ni, 9.9 - 10 wt % Co, 8.3 - 8.4 wt % Cr, 0.65-0.72 wt % Mo, 5.4 - 5.5 Al, 1.0 - 1.1 Ti, and 0.01 - 0.5 wt % Y. In some implementations of the methods and devices, coating the MARM 247 particles with yttrium oxide includes introducing the MARM 247 particles and a plurality of yttrium oxide nanoparticles into a chamber, and oscillating at least one wall of the chamber. In some implementations of the methods and devices, coating the MARM 247 particles with yttrium oxide includes introducing the MARM 247 particles and a plurality of yttrium oxide nanoparticles into a chamber, and rotating the chamber.

[0009] In some implementations of the methods and devices, the metallic powder includes 0.01 - 0.5 wt % yttrium (Y). In some implementations of the methods and devices, the method further includes additively manufacturing an engine part from the metal powder. In some implementations of the methods and devices, the engine part is formed from an alloy that includes at least 59 wt % Ni, 9.9 - 10 wt % Co, 8.3 - 8.4 wt % Cr, 0.65-0.72 wt % Mo, 5.4 - 5.5 Al, 1.0 - 1.1 Ti, and 0.01 - 0.5 wt % Y. In some implementations of the methods and devices, coating the nickel alloy particles with yttrium oxide includes introducing the nickel alloy particles and a plurality of yttrium oxide nanoparticles into a chamber, and oscillating or shaking at least one wall of the chamber. In some implementations of the methods and devices, coating the nickel alloy particles with yttrium oxide includes introducing the nickel alloy particles and a plurality of yttrium oxide nanoparticles into a chamber, and rotating the chamber.

[0010] In some implementations of the methods and devices, the metallic powder includes 0.01 - 0.5 wt % yttrium (Y). In some implementations of the methods and devices, the method further includes producing the metal powder by coating the nickel alloy particles with yttrium oxide. In some implementations of the methods and devices, the coating the nickel alloy particles with the yttrium oxide includes introducing the nickel alloy particles and a plurality of yttrium oxide nanoparticles into a chamber, and oscillating at least one wall of the chamber. In some implementations of the methods and devices, coating the nickel alloy particles with the yttrium oxide includes introducing the nickel alloy particles and a plurality of yttrium oxide nanoparticles into a chamber, and shaking or rotating the chamber. In some implementations of the methods and devices, the engine part includes 0.01 - 0.5 wt % yttrium (Y).Attorney Docket No. BEEHI-1037PCT Patent ApplicationBRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying figures, in which like reference numerals refer to identical or functionally similar elements throughout the separate views and which are incorporated in and form a part of the specification, further illustrate the examples and, together with the detailed description, serve to explain the examples disclosed herein.

[0012] FIG. 1 is a high level conceptual diagram illustrating an example of coating nickel alloy particles with yttrium oxide to produce a metallic powder configured for additive manufacturing of metal parts, according to some aspects.

[0013] FIG. 2 is a high level conceptual diagram illustrating an example of producing an engine part from a metallic powder of nickel alloy particles coated with yttrium oxide, according to some aspects.

[0014] FIG. 3 is a high-level conceptual figure of a laser powder bed fusion style 3D printer, according to some aspects.

[0015] FIG. 4 is a high-level flow diagram illustrating an example of a method for producing an additively manufactured jet engine part from MARM 247 particles coated in yttrium oxide, according to some aspects.

[0016] FIG. 5 is a high-level flow diagram illustrating an example of a method for coating a plurality of nickel alloy particles with yttrium oxide to produce a metal powder configured for additive manufacturing of metal parts, according to some aspects.

[0017] FIG. 6 is a high-level flow diagram illustrating an example of a method for producing an additively manufactured engine part from nickel alloy particles coated in yttrium oxide, according to some aspects.Attorney Docket No. BEEHI-1037PCT Patent ApplicationDETAILED DESCRIPTION

[0018] The particular values and configurations discussed in the following non-limiting examples can be varied and are cited merely to illustrate one or more examples and are not intended to limit the scope thereof.

[0019] Examples will now be described more fully hereinafter with reference to the accompanying drawings, in which illustrative examples are shown. The examples disclosed herein can be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these examples are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the examples to those skilled in the art. Like numbers refer to like elements throughout.

[0020] The terminology used herein is for the purpose of describing particular examples only and is not intended to be limiting. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprise" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0021] Throughout the specification and claims, terms may have nuanced meanings suggested or implied in context beyond an explicitly stated meaning. Likewise, the phrase “in one example” as used herein does not necessarily refer to the same example and the phrase “in another example” as used herein does not necessarily refer to a different example. It is intended that claimed subject matter include combinations of examples in whole or in part.

[0022] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted asAttorney Docket No. BEEHI-1037PCT Patent Application having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0023] It will be understood that particular examples described herein are shown by way of illustration and not as limitations to the claims. The principal aspects can be employed in various examples without departing from the scope of the claims. Those skilled in the art will recognize or be able to ascertain using no more than routine experimentation, numerous equivalents to the specific procedures described herein. Such equivalents are considered to be within the scope covered by the claims.

[0024] The use of the word “a” or “an” when used in conjunction with the term “comprising” in the claims and / or the specification may mean “one,” but it is also consistent with the meaning of “one or more,” “at least one,” and “one or more than one.” The use of the term “or” in the claims is used to mean “and / or” unless explicitly indicated to refer to alternatives only or the alternatives are mutually exclusive, although the disclosure supports a definition that refers to only alternatives and “and / or.” Throughout this application, the term “about” is used to indicate that a value includes the inherent variation of error for the device, the method being employed to determine the value, or the variation that exists among the study subjects.

[0025] As used in this specification and claim(s), the words “comprising” (and any form of comprising, such as “comprise” and “comprises”), “having” (and any form of having, such as “have” and “has”), “including” (and any form of including, such as “includes” and “include”) or “containing” (and any form of containing, such as “contains” and “contain”) are inclusive or open-ended and do not exclude additional, unrecited elements or method steps.

[0026] The term “or combinations thereof’ as used herein refers to all permutations and combinations of the listed items preceding the term. For example, “A, B, C, or combinations thereof’ is intended to include at least one of: A, B, C, AB, AC, BC, or ABC, and if order is important in a particular context, also BA, CA, CB, CBA, BCA, ACB, BAC, or CAB. Continuing with this example, expressly included are combinations that contain repeats of one or more item or term, such as BB, AAA, AB, BBC, AAABCCCC, CBBAAA, CABABB, and so forth. The skilled artisan willAttorney Docket No. BEEH1-1037PCT Patent Application understand that typically there is no limit on the number of items or terms in any combination, unless otherwise apparent from the context.

[0027] All the compositions and / or methods disclosed and claimed herein can be made and executed without undue experimentation in light of the present disclosure. While the compositions and methods have been described in terms of preferred embodiments, it will be apparent to those of skill in the art that variations may be applied to the compositions and / or methods and in the steps or in the sequence of steps of the method described herein without departing from the concept, spirit, and scope thereof. All such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the spirit, scope and concept defined by the appended claims.

[0028] Engines (e.g., jet engines, rocket motors, etc.) may include engine pails (e.g., combustion chambers, turbine blades, etc.) that withstand extremely high temperatures because higher temperatures may lead to higher efficiency or higher thrust. The temperatures may be limited by the material properties of the alloys used to produce the engine parts. As such, the development of alloys for engine parts has been an active area of research. One such alloy, MARM 247, was developed more than three decades ago. There are slightly different formulations of MARM 247. One formulation is reported as including the following elements by weight percent (wt %): 0.15 C, 8.37 Cr, 0.67 Mo, 5.42 Al, 1.01 Ti, 3.05 Ta, 9.92 W, 9.91 Co, 0.04 Nb, 0.015 Br, and 1.37 Hf with the balance being Ni. Another formulation is reported as including the following elements by wt %: FM Carbide: 8.3 Cr, Ni 59, 10 Co, 10 W, 5.5 Al, 1 Ti, 0.7 Mo, and 0.5 Fe.

[0029] One of the issues experienced by engine parts such as those made of MARM 247 is called “creep”. Creep may occur when a solid material experiences a constant external force, resulting in a time-dependent change in its stress and deformation. Creep resistance is one of the factors that led to the formulation of MARM 247 and that has led to the development of more recent alloys such as the “Cantor alloys” such GRX-810. GRX-810 has been developed by the National Aeronautics and Space Administration (NASA). One GRX-810 composition is reported as including the following elements by wt %: 32 Co, 30 Cr 1.5 Re, and 0.003 B with the balance being Ni. A more recent composition GRX-810 composition is reported as including the following elements by wt %: 33 Co, 29 Cr, and 1.5 Re with the balance being Ni. An aspect of GRX-810 is that it is over 30% Co, which is known to be a gamma phase former in such alloys. Formation of the gamma phase is known to correlate withAttorney Docket No. BEEHI-1037PCT Patent Application properties such as creep resistance. Adding yttrium to GRX-810 has been shown to further increase creep resistance in additively manufactured parts.

[0030] MARM 247 is a well understood material because there are decades of experience in manufacturing engine parts from MARM 247. Many of those engine parts have been additively manufactured. Introducing yttrium into MARM 247 may result in an improved formulation with better creep resistance. Furthermore, producing parts from the improved formulation may be accomplished with no modification or little modification to existing long established and highly developed processes.

[0031] FIG. 1 is a high level conceptual diagram illustrating an example of coating nickel alloy particles 101 with yttrium oxide 106 to produce a metallic powder 104 configured for additive manufacturing of metal parts, according to some aspects. Nickel alloy particles 101, such as MARM- 247 particles and yttrium oxide (Y2O3) nanoparticles 102 may be combined in a mixing chamber 103 having mixing chamber walls 107 enclosing a volume. The nickel alloy particles 101 are formed of MARM 247 when the nickel alloy particles 101 are MARM 247 particles. Those practiced in the art arc familiar with purchasing, producing, or otherwise obtaining particles such as nickel alloy particles 101 and yttrium oxide nanoparticles 102. The mixing chamber may be rotated (e.g., spun by a motor), shaken, or oscillated (e.g., the motion of a paint mixer) to coat the nickel alloy particles 101 with yttrium oxide nanoparticles 102. The nickel alloy particles are coated with yttrium oxide as a result of rotating, shaking, or oscillating the mixing chamber, thereby forming a metallic powder 104 that may be used for additively manufacturing items such as engine parts. The metallic powder 104 may be nickel alloy 105 coated with yttrium oxide 106. In some examples, one or more walls of the chamber may be moved to thereby mix the coat the coating nickel alloy particles 101 with yttrium oxide 106. For example, the bottom of the chamber may be spun, oscillated, or shaken.

[0032] FIG. 2 is a high level conceptual diagram illustrating an example of producing an engine part 202 from a metallic powder 104 of nickel alloy particles coated with yttrium oxide, according to some aspects. The metallic powder 104 may be used by an additive manufacturing device 201 such as a laser powder bed fusion device, an electron beam powder bed fusion device, a direct energy deposition device, or one of the other 3D printers that produces pails from metallic powders.

[0033] FIG. 3 is a high-level conceptual figure of a laser powder bed fusion style 3D printer 300,Attorney Docket No. BEEHI-1037PCT Patent Application according to some aspects. A powder feeder 310 deposits powder 312 to produce a powder layer 305 in a powder bed 308. The powder layer that is deposited first can lie directly on the powder bed or on a substrate that may be placed in the powder bed before the powder layers are deposited. A beam scanner 301 can move a beam source 302 or steer an energy beam 311 that is produced by the beam source 302. The energy beam may be a laser beam, an electron beam, etc. The energy beam 311 produces a melt pool 304 where the energy beam 311 melts some of the powder in the powder bed 308. The melt pool 304 has a melt pool depth 303. The melt pool depth 303 is illustrated as being large enough to also melt some of the patterned layer 306 directly underneath the powder layer 305. In some implementations the melt pool can extend down through numerous underlying layers. The beam scanner moves the melt pool 304 in a path through the topmost powder layer to selectively melt some of the powder and thereby produce a patterned layer. The powder layer that is deposited first becomes the bottom patterned layer 307. A 3D object is printed by iteratively depositing a powder layer and using the energy beam to melt a pattern into that powder layer, thereby producing a patterned layer. The powder may be an alloy powder. A 3D printed object printed from an alloy powder is formed from the alloy. In an example, the powder is a MARM 247 powder coated with yttrium oxide to produce a metal powder that is 0.01 - 0.5 wt% yttrium (Y) resulting in a 3D printed part that is formed of the metal powder and has 0.01 - 0.5 wt% yttrium (Y).

[0034] FIG. 4 is a high-level flow diagram illustrating an example of a method 400 for producing an additively manufactured jet engine part from MARM 247 particles coated in yttrium oxide, according to some aspects. At block 401 , MARM 247 particles are coated with yttrium oxide to produce a metal powder configured for additive manufacturing of metal parts. The MARM-247 may include at least 59 weight percent (wt %) nickel (Ni); 9.9 - 10 wt % cobalt (Co); 8.3 - 8.4 wt % chromium (Cr); 0.65-0.72 wt % molybdenum (Mo); 5.4 - 5.5 aluminum (Al); and 1.0 - 1.1 titanium (Ti). The metallic powder may be 0.01 - 0.5 wt % yttrium (Y). At block 402, a jet engine part may be additively manufactured from the metal powder. The jet engine part may be at least 59 weight percent (wt %) nickel (Ni); 9.9 - 10 wt % cobalt (Co); 8.3 - 8.4 wt % chromium (Cr); 0.65-0.72 wt % molybdenum (Mo); 5.4 - 5.5 aluminum (Al); 1.0 - 1.1 titanium (Ti); and 0.01 - 0.5 wt % yttrium (Y).

[0035] FIG. 5 is a high-level flow diagram illustrating an example of a method 500 for coating a plurality of nickel alloy particles with yttrium oxide to produce a metal powder configured for additiveAttorney Docket No. BEEHI-1037PCT Patent Application manufacturing of metal parts, according to some aspects. At block 501, nickel alloy particles and yttrium oxide nano particles may be introduced into a chamber. The nickel alloy particles may include at least 59 weight percent (wt %) nickel (Ni); 9.9 - 10 wt % cobalt (Co); 8.3 - 8.4 wt % chromium (Cr); 0.65-0.72 wt % molybdenum (Mo); 5.4 - 5.5 aluminum (Al); and 1.0 - 1.1 titanium (Ti). At block 502, the chamber may be rotated or shaken or at least on wall of the chamber may be shaken or oscillated to coat the nickel alloy particles with yttrium oxide, thereby forming the metallic powder. The metallic powder may be 0.01 - 0.5 wt % yttrium (Y).

[0036] FIG. 6 is a high-level flow diagram illustrating an example of a method for producing an additively manufactured engine part from nickel alloy particles coated in yttrium oxide 600, according to some aspects. At block 601, a metal powder may be produced by coating the nickel alloy particles with yttrium oxide by, for example, introducing nickel alloy particles and yttrium oxide nanoparticles into a chamber and then oscillating, rotating, or shaking at least one wall of the chamber to thereby coat the nickel alloy particles with yttrium oxide. The metallic powder may be 0.01 - 0.5 wt % yttrium (Y). At block 602, an engine part may be additively manufactured from the metallic powder that includes nickel alloy particles coated with yttrium oxide, wherein the nickel alloy particles include: at least 59 weight percent (wt %) nickel (Ni); 9.9 - 10 wt % cobalt (Co); 8.3 - 8.4 wt % chromium (Cr); 0.65-0.72 wt % molybdenum (Mo); 5.4 - 5.5 aluminum (Al); and 1.0 - 1.1 titanium (Ti).

Claims

Attorney Docket No. BEEHI-1037PCT Patent ApplicationCLAIMSWhat is claimed is:

1. A method comprising coating a plurality of MARM 247 particles with yttrium oxide to produce a metal powder configured for additive manufacturing of metal pails.

2. The method of claim 1, wherein the metallic powder includes 0.01 - 0.5 wt % yttrium (Y).

3. The method of claim 1 , wherein the MARM 247 particles are formed of MARM 247 that includes: at least 59 weight percent (wt %) nickel (Ni),9.9 - 10 wt % cobalt (Co),8.3 - 8.4 wt % chromium (Cr),0.65-0.72 wt % molybdenum (Mo),5.4 - 5.5 aluminum (Al), and1.0 - 1.1 titanium (Ti).

4. The method of claim 3, wherein the metallic powder includes 0.01 - 0.5 wt % yttrium (Y).

5. The method of claim 1 , further including additively manufacturing a jet engine part from the metal powder.

6. The method of claim 5, wherein the jet engine part is formed from an alloy that includes at least 59 wt % Ni, 9.9 - 10 wt % Co, 8.3 - 8.4 wt % Cr, 0.65-0.72 wt % Mo, 5.4 - 5.5 Al, 1.0 - 1.1 Ti, and 0.01 - 0.5 wt % Y.

7. The method of claim 1, wherein coating the MARM 247 particles with the yttrium oxide includes: introducing the MARM 247 particles and a plurality of yttrium oxide nanoparticles into a chamber; andAttorney Docket No. BEEH1-1037PCT Patent Application oscillating at least one wall of the chamber.

8. The method of claim 1, wherein coating the MARM 247 particles with the yttrium oxide includes: introducing the MARM 247 particles and a plurality of yttrium oxide nanoparticles into a chamber; and rotating the chamber.

9. A method comprising: coating a plurality of nickel alloy particles with yttrium oxide to produce a metal powder configured for additive manufacturing of metal parts, wherein the nickel alloy particles include: at least 59 weight percent (wt %) nickel (Ni),9.9 - 10 wt % cobalt (Co),8.3 - 8.4 wt % chromium (Cr),0.65-0.72 wt % molybdenum (Mo),5.4 - 5.5 aluminum (Al), and1.0 - 1.1 titanium (Ti).

10. The method of claim 9, wherein the metallic powder includes 0.01 - 0.5 wt % yttrium (Y).

11. The method of claim 10, further including additively manufacturing an engine part from the metal powder.

12. The method of claim 11, wherein the engine part is formed from an alloy that includes at least 59 wt % Ni, 9.9 - 10 wt % Co, 8.3 - 8.4 wt % Cr, 0.65-0.72 wt % Mo, 5.4 - 5.5 Al, 1.0 - 1.1 Ti, and 0.01 - 0.5 wt % Y.

13. The method of claim 9, wherein coating the nickel alloy particles with the yttrium oxide includes: introducing the nickel alloy particles and a plurality of yttrium oxide nanoparticles into a chamber; andAttorney Docket No. BEEH1-1037PCT Patent Application oscillating or shaking at least one wall of the chamber.

14. The method of claim 9, wherein coating the nickel alloy particles with the yttrium oxide includes: introducing the nickel alloy particles and a plurality of yttrium oxide nanoparticles into a chamber; and rotating the chamber.

15. A method comprising : additively manufacturing an engine part from a metallic powder that includes nickel alloy particles coated with yttrium oxide, wherein the nickel alloy particles include: at least 59 weight percent (wt %) nickel (Ni),9.9 - 10 wt % cobalt (Co),8.3 - 8.4 wt % chromium (Cr),0.65-0.72 wt % molybdenum (Mo),5.4 - 5.5 aluminum (Al), and1.0 - 1.1 titanium (Ti).

16. The method of claim 15, wherein the metallic powder includes 0.01 - 0.5 wt % yttrium (Y).

17. The method of claim 15, further including producing the metal powder by coating the nickel alloy particles with yttrium oxide.

18. The method of claim 17, wherein coating the nickel alloy particles with the yttrium oxide includes: introducing the nickel alloy particles and a plurality of yttrium oxide nanoparticles into a chamber; and oscillating at least one wall of the chamber.

19. The method of claim 17, wherein coating the nickel alloy particles with the yttrium oxide includes:Attorney Docket No. BEEH1-1037PCT Patent Application introducing the nickel alloy particles and a plurality of yttrium oxide nanoparticles into a chamber; and shaking or rotating the chamber.

20. The method of claim 15, wherein the engine part includes 0.01 - 0.5 wt % yttrium (Y).

21. A metallic powder comprising : nickel alloy particles coated with yttrium oxide, the metallic powder configured for use by an additive manufacturing device that forms 3D objects from the metallic powder.

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