High strain damping method including a face-centered cubic ferromagnetic damping coating, and components having same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C23C-014/14
C23C-014/16
C23C-014/30
B32B-015/01
F01D-005/28
C23C-014/24
출원번호
US-0059549
(2013-10-22)
등록번호
US-9458534
(2016-10-04)
발명자
/ 주소
Shen, Mo-How Herman
출원인 / 주소
Shen, Mo-How Herman
대리인 / 주소
Dawsey, David J.
인용정보
피인용 횟수 :
3인용 특허 :
23
초록▼
A method to increase the damping of a substrate using a face-centered cubic ferromagnetic damping coating having high damping loss attributes when a strain amplitude is 500-2000 micro-strain, and/or maximum damping loss attributes that occurs when the strain amplitude is greater than 250 micro-strai
A method to increase the damping of a substrate using a face-centered cubic ferromagnetic damping coating having high damping loss attributes when a strain amplitude is 500-2000 micro-strain, and/or maximum damping loss attributes that occurs when the strain amplitude is greater than 250 micro-strain, and a turbine component having a face-centered cubic ferromagnetic damping coating.
대표청구항▼
1. A method to increase the damping of a substrate, comprising: a) creating a face-centered cubic damping material ingot comprising a face-centered cubic damping material;b) placing the face-centered cubic damping material ingot and the substrate in a vacuum chamber;c) heating the substrate at a fir
1. A method to increase the damping of a substrate, comprising: a) creating a face-centered cubic damping material ingot comprising a face-centered cubic damping material;b) placing the face-centered cubic damping material ingot and the substrate in a vacuum chamber;c) heating the substrate at a first layer temperature of 50-350 degrees Celsius;d) forming a vapor from the face-centered cubic damping material ingot;e) condensing the vapor on a surface of the substrate to create a first layer face-centered cubic ferromagnetic damping coating having a first grain size on the surface of the substrate;f) heating the substrate and the first layer face-centered cubic ferromagnetic damping coating to a second layer temperature that is at least 20% greater than the first layer temperature;g) condensing the vapor on at least a portion of the first layer face-centered cubic ferromagnetic damping coating to create a second layer face-centered cubic ferromagnetic damping coating having a second grain size different than the first grain size, resulted in a coated substrate;h) wherein a face-centered cubic ferromagnetic damping material test beam has a maximum first mode test beam system loss factor that occurs where the strain amplitude is greater than 250 micro-strain. 2. The method according to claim 1, wherein the face-centered cubic ferromagnetic damping material test beam has a first mode test beam system loss factor of at least 0.010 when the strain amplitude is 500-2000 micro-strain. 3. The method according to claim 1, wherein the first mode test beam system loss factor is greater than 0.010 throughout a consistent strain range that is at least 250 micro-strain wide, and wherein the consistent strain range begins above a 500 micro-strain level, and the first mode test beam system loss factor varies by no more than twenty-five percent throughout the consistent strain range. 4. The method according to claim 1, wherein the first mode test beam system loss factor is greater than 0.010 throughout a consistent strain range that is at least 500 micro-strain wide, and wherein the consistent strain range begins above a 500 micro-strain level, and the first mode test beam system loss factor varies by no more than fifty percent throughout the consistent strain range. 5. The method according to claim 1, wherein the first layer face-centered cubic ferromagnetic damping coating and the second layer face-centered cubic ferromagnetic damping coating have a low residual stress within a range of ±50 MPa without the coated substrate ever being subjected to an annealing temperature of above 700° C. for an annealing period of longer than 30 minutes. 6. The method according to claim 1, wherein the first mode test beam system loss factor of the coated substrate is at least 0.013 when the strain amplitude is 500-2000 micro-strain, and a maximum first mode test beam system loss factor occurs where the strain amplitude is greater than 500 micro-strain. 7. The method according to claim 1, wherein the maximum first mode test beam system loss factor occurs where the strain amplitude is greater than 1500 micro-strain. 8. The method according to claim 1, further including a polishing step wherein majority of the surface area of the coated substrate has a surface roughness of less than 0.635 μm for Ra. 9. The method according to claim 1, wherein the coated substrate has a Vickers hardness of at least 250 HV. 10. The method according to claim 9, wherein the coated substrate has a Vickers hardness of at least 500 HV. 11. The method according to claim 1, further including a step of applying a separate erosion-resistant coating onto the second layer face-centered cubic ferromagnetic damping coating to create the coated substrate, wherein the first layer face-centered cubic ferromagnetic damping coating has a Vickers hardness of less than 300 HV, and wherein the erosion-resistant coating contains a composite ceramic material and increases the hardness of the coated substrate to a Vickers hardness of at least 500 HV. 12. The method according to claim 11, wherein the erosion-resistant coating is created from an erosion-resistant material bonded to at least a portion of the second layer face-centered cubic ferromagnetic damping coating to create the coated substrate. 13. The method according to claim 1, wherein the face-centered cubic damping material is selected from the group consisting of Co—Ni based face-centered cubic compositions, Co—Mn based face-centered cubic compositions, and Fe—Mn based face-centered cubic compositions. 14. The method of claim 13, wherein the face-centered cubic damping material is a Co—Ni based face-centered cubic composition having 20-40 weight % nickel. 15. The method of claim 13, wherein the face-centered cubic damping material is a Co—Mn based face-centered cubic composition having 15-26 weight % manganese. 16. The method of claim 13, wherein the face-centered cubic damping material is a Fe—Mn based face-centered cubic composition having 13-25 weight % manganese. 17. The method according to claim 1, wherein the first layer temperature is 275-350 degrees Celsius during the application of the face-centered cubic ferromagnetic damping coating. 18. The method according to claim 17, wherein the second layer temperature that is at least 50 degrees Celsius greater than the first layer temperature during the application of the second layer face-centered cubic ferromagnetic damping coating. 19. The method according to claim 18, wherein the second layer temperature is at least 100 degrees Celsius greater than the first layer temperature. 20. The method according to claim 18, wherein the second layer temperature is 20-100% greater than the first layer temperature. 21. The method according to claim 20, wherein the second layer temperature is 40%-100% greater than the first layer temperature. 22. The method according to claim 1, wherein the coated substrate has a first mode test beam system loss factor of at least 0.013 when the strain amplitude is 500-2000 micro-strain, and the maximum first mode test beam system loss factor occurs where the strain amplitude is greater than 1000 micro-strain. 23. The method according to claim 22, wherein the first mode test beam system loss factor is at least 0.020 where the strain amplitude is greater than 1250 micro-strain. 24. The method according to claim 1, wherein the substrate comprises a component of a turbine. 25. The method according to claim 1, wherein the combination of the first layer face-centered cubic ferromagnetic damping coating and the second layer face-centered cubic ferromagnetic damping coating has preferential high temperature damping properties characterized by a high temperature second mode coated beam system loss factor that increases from 500 micro-strain to 1000 micro-strain with a slope of greater than 0.00001, when tested at 500° F. 26. The method according to claim 25, wherein the combination of the first layer face-centered cubic ferromagnetic damping coating and the second layer face-centered cubic ferromagnetic damping coating has preferential high temperature damping properties characterized by a second mode coated beam system loss factor of at least 0.010 at 500 micro-strain and at least 0.020 at 1000 micro-strain, when tested at 650° F., and wherein the high temperature second mode coated beam system loss factor that increases from 500 micro-strain to 1000 micro-strain with a slope of greater than 0.00001, when tested at 650° F. 27. The method according to claim 26, wherein the combination of the first layer face-centered cubic ferromagnetic damping coating and the second layer face-centered cubic ferromagnetic damping coating has preferential high temperature damping properties characterized by a high temperature second mode coated beam system loss factor that increases from 500 micro-strain to 1000 micro-strain with a slope of greater than 0.00002, when tested at 650° F. 28. The method according to claim 1, further including the step of maintaining a first substrate region at a first region temperature and maintaining a second substrate region at a second region temperature during application of the first layer face-centered cubic ferromagnetic damping coating, wherein the first region temperature and the second region temperature are not equal, thereby producing different grain sizes and damping properties within the first layer face-centered ferromagnetic damping coating. 29. The method according to claim 28, wherein the second region temperature that is at least 25° C. greater than the first region temperature. 30. The method according to claim 28, wherein the second region temperature is at least 20% greater than the first region temperature. 31. The method according to claim 30, wherein the second region temperature is 40%-100% greater than the first region temperature. 32. A method to increase the damping of a substrate, comprising: a) creating a face-centered cubic damping material ingot comprising a face-centered cubic damping material selected from the group consisting of Co—Ni based face-centered cubic compositions having 20-40 weight % nickel, Co—Mn based face-centered cubic compositions having 15-26 weight % manganese, and Fe—Mn based face-centered cubic compositions having 13-25 weight % manganese;b) placing the face-centered cubic damping material ingot and the substrate in a vacuum chamber;c) heating the substrate to a first layer temperature of 50-350 degrees Celsius;d) forming a vapor from the face-centered cubic damping material ingot;e) condensing the vapor on a surface of the substrate to create a first layer face-centered cubic ferromagnetic damping coating having a first grain size on the surface of the substrate;f) heating the substrate and the first layer face-centered cubic ferromagnetic damping coating to a second layer temperature that is at least 25 degrees Celsius greater than the first layer temperature; andg) condensing the vapor on at least a portion of the first layer face-centered cubic ferromagnetic damping coating to create a second layer face-centered cubic ferromagnetic damping coating having a second grain size different than the first grain size. 33. The method according to claim 32, wherein the second grain size is larger than the first grain size. 34. The method according to claim 33, wherein the second layer temperature is at least 20% greater than the first layer temperature. 35. The method according to claim 34, wherein the second layer temperature is 40%-100% greater than the first layer temperature. 36. The method according to claim 34, wherein the second layer temperature is greater than 500 degrees Celsius. 37. The method according to claim 34, wherein a coated beam test specimen has a second mode coated beam system loss factor of at least 0.010 at 500 micro-strain and at least 0.020 at 1000 micro-strain and increases from 500 micro-strain to 1000 micro-strain with a slope of greater than 0.00001 when tested at 650° F. 38. The method according to claim 32, wherein the first layer face-centered cubic ferromagnetic damping coating and the second layer face-centered cubic ferromagnetic damping coating have low residual stress within a range of ±50 MPa without being subjected to an annealing temperature of above 700° C. for an annealing period of longer than 30 minutes. 39. The method according to claim 32, wherein the substrate comprises a component of a turbine. 40. A method to increase the damping of a substrate, comprising: a) creating a face-centered cubic damping material ingot comprising a face-centered cubic damping material selected from the group consisting of Co—Ni based face-centered cubic compositions having 20-40 weight % nickel, Co—Mn based face-centered cubic compositions having 15-26 weight % manganese, and Fe—Mn based face-centered cubic compositions having 13-25 weight % manganese;b) placing the face-centered cubic damping material ingot and the substrate in a vacuum chamber;c) heating a first portion of the substrate to a first layer temperature of 50-350 degrees Celsius and a second portion of the substrate to a second layer temperature that is at least 20% greater than the first layer temperature;d) forming a vapor from the face-centered cubic damping material ingot; ande) condensing the vapor on at least a portion of the first portion and a portion of the second portion to create a first layer face-centered cubic ferromagnetic damping coating on a portion of the first portion having a first grain size, and a second layer face-centered cubic ferromagnetic damping coating on a portion of the second portion having a second grain size different than the first grain size. 41. The method according to claim 40, wherein the second layer temperature is 40%-100% greater than the first layer temperature. 42. The method according to claim 39, wherein the substrate comprises a component of a turbine.
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