Comparative study on the initial oxidation behavior of conventional and nanocrystalline MCrAlY coatings - effect of microstructure evolution and dynamic mechanisms
Source abstract
Abstract
Two MCrAlY coatings with the same nominal composition but different microstructures are prepared by magnetron sputtering (MS) and arc ion plating (AIP). Their oxidation at 1000°C led to very different results. The relatively coarse grained AIP coating formed a duplex-layer scale, consisting of external θ-Al 2O 3 and internal α-Al 2O 3, with small amounts of NiCr 2O 4 . Severe surface undulation was accompanied by the development of numerous cracks and voids. Aluminum depletion transformed the AIP coating from β to γ, causing volume shrinkage, promoting scale spallation and leading to premature failure. In contrast, the nanocrystalline MS coating was less degraded due to its columnar crystal structure and high-density of grain boundaries which provided rapid Al diffusion. Oxidation of this coating was characterized by a faster θ-Al 2O 3 to α-Al 2O 3 transformation and formation of an exclusive α-Al 2O 3 scale, protecting the surface.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · Advanced ceramic materials synthesis · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (70)
Show source-provided references
1. Thermal barrier coatings for gas-turbine engine applications10.1126/science.1068609 ↗
2. Materials design for the next generation thermal barrier coatings10.1146/annurev.matsci.33.011403.113718 ↗
3. Progress update on failure mechanisms of advanced thermal barrier coatings: a review10.1016/j.porgcoat.2015.09.019 ↗
4. Thermal barrier coatings technology: critical review, progress update, remaining challenges and prospects10.1179/1743280413Y.0000000019 ↗
5. Thermal-barrier coatings for more efficient gas-turbine engines10.1557/mrs.2012.232 ↗
6. Advanced structural ceramics in aerospace propulsion10.1038/nmat4687 ↗
7. Alumina scale formation: a new perspective
8. On the growth of Al2O3 scales10.1016/j.actamat.2013.07.024 ↗
9. Promoting exclusive α-Al2O3 growth upon high-temperature oxidation of NiCrAl alloys: experiment versus model predictions10.1016/j.actamat.2004.12.014 ↗
10. Effect of partial oxygen pressure on the initial stages of high-temperature oxidation of γ-NiCrAl alloys10.1179/mht.2003.037 ↗
11. Modelling the thermal oxidation of ternary alloys - compositional changes in the alloy and the development of oxide phases10.1016/S1359-6454(03)00381-1 ↗
12. Pt effect on early stage oxidation behaviour of Pt-diffused γ-Ni/γ′-Ni3Al coatings10.1016/j.actamat.2020.03.013 ↗
13. Initial oxidation of Ni-based superalloy and its dynamic microscopic mechanisms: the interface junction initiated outwards oxidation10.1016/j.actamat.2021.116991 ↗
14. On the microstructure of the initial oxide grown by controlled annealing and oxidation on a NiCoCrAlY bond coating10.1007/s11085-005-8532-6 ↗
15. Oxidation behaviour of sputter-deposited Ni-Cr-Al micro-crystalline coatings10.1016/S1359-6454(97)00346-7 ↗
16. Microprocesses in nickel accompanying metal dusting10.1016/j.actamat.2007.09.010 ↗
17. Transient-alumina transformations during the oxidation of magnetron-sputtered CoCrAl nanocrystalline coatings10.1023/A:1026015101783 ↗
18. Characterization of a cyclic displacement instability for a thermally grown oxide in a thermal barrier system10.1016/S1359-6454(01)00071-4 ↗
19. Morphology of oxide scales formed on chromium-silicon alloys at high temperatures10.1016/j.corsci.2020.109023 ↗
20. Characterization and understanding of residual stresses in a NiCoCrAlY bond coat for thermal barrier coating application10.1016/j.actamat.2015.04.053 ↗
21. Early stages of scale formation during oxidation of γ/γ′ strengthened single crystal ternary Co-base superalloy at 900 °C10.1016/j.corsci.2018.02.020 ↗
22. Development of a pre-oxidation treatment to improve the adhesion between thermal barrier coatings and NiCoCrAlY bond coatings10.1007/s11085-006-9036-8 ↗
23. The role of Cr in promoting protective alumina scale formation by γ-based Ti-Al-Cr alloys — I. Compatibility with alumina and oxidation behavior in oxygen10.1016/S1359-6454(96)00362-X ↗
24. The role of Cr in promoting protective alumina scale formation by γ-based Ti-Al-Cr alloys — II. Oxidation behavior in air10.1016/S1359-6454(96)00361-8 ↗
25. Thermally grown Al2O3 on a H2-annealed Fe3Al alloy: stress evolution and film adhesion10.1016/j.actamat.2007.06.018 ↗
26. Transient oxidation of single-crystal β-NiAl10.1007/BF02653930 ↗
27. Protective Al2O3 scale formation on NbAl3-base alloys10.1007/BF00938458 ↗
28. TEM studies of oxidized NiAl and Ni3Al cross sections10.1007/BF00666466 ↗
29. Microstructural study of the theta-alpha transformation in alumina scales formed on nickel-aluminides10.1179/mht.2000.011 ↗
30. The oxidation behavior of NiAl-I. Phase transformations in the alumina scale during oxidation of NiAl and NiAl-Cr Alloys10.1016/0010-938X(92)90002-K ↗
31. Theoretical analysis of the diffusion processes determining the oxidation rate of alloys10.1149/1.2779605 ↗
32. Reaktionstypen bei der oxydation von legierungen
33. High-temperature oxidation resistance of sputtered micro-grain superalloy K38G10.1007/BF00666917 ↗
34. Comparative study of oxidation and interdiffusion behavior of AIP NiCrAlY and sputtered nanocrystalline coatings on a nickel-based single-crystal superalloy10.1016/j.corsci.2015.05.062 ↗
35. Breakaway oxidation of a low-Al content nanocrystalline coating at 1000°C10.1016/j.surfcoat.2018.12.034 ↗
36. Microstructure and composition evolution of a single-crystal superalloy caused by elements interdiffusion with an overlay NiCrAlY coating on oxidation10.1016/j.jmst.2019.11.017 ↗
37. A novel single-phase γ′ nanocrystalline coating with high resistance to oxidation and scale rumpling yet mitigated interdiffusion with the alloy substrate10.1016/j.corsci.2021.109866 ↗
38. Diffusion of Ta and its influence on oxidation behavior of nanocrystalline coatings with different Ta, Y and Al contents10.1016/j.corsci.2017.07.017 ↗
39. Oxidation behavior of Al/Y co-modified nanocrystalline coatings with different Al content on a nickel-based single-crystal superalloy10.1016/j.corsci.2020.108700 ↗
40. Influence of sputtered nanocrystalline coating on oxidation and hot corrosion of a nickel-based superalloy M95110.1016/j.jmst.2014.01.001 ↗
41. Effects of surface finish of single crystal superalloy substrate on cyclic thermal oxidation of its nanocrystalline coating10.1016/j.corsci.2016.04.023 ↗
42. The effect of yttrium addition on oxidation of a sputtered nanocrystalline coating with moderate amount of tantalum in composition10.1016/j.apsusc.2016.01.088 ↗
43. Superior oxidation and spallation resistant NiCoCrAlY bond coat via homogenizing the yttrium distribution10.1016/j.corsci.2019.108145 ↗
44. Effect of surface curvature on oxidation of a MCrAlY coating10.1016/j.corsci.2019.108256 ↗
45. Effect of microstructure of a NiCoCrAlY coating fabricated by high-velocity air fuel on the isothermal oxidation10.1016/j.corsci.2019.108126 ↗
46. Effect of microstructure on early oxidation of MCrAlY coatings10.1016/j.actamat.2018.08.018 ↗
47. Investigation of TBCs on turbine blades by photoluminescence piezospectroscopy10.1016/j.actamat.2008.08.053 ↗
48. Temperature dependence of phase relationships in different types of MCrAlY-coatings10.1016/j.surfcoat.2007.06.044 ↗
49. The transition from the formation of mixed scales to the selective oxidation of the most-reactive component in the corrosion of single and two-phase binary alloys10.1007/BF00664498 ↗
50. Effect of reactive element oxide inclusions on the growth kinetics of protective oxide scales10.1016/j.actamat.2007.07.007 ↗
51. Tensile ductility of an AlCoCrFeNi multi-phase high-entropy alloy through hot isostatic pressing (HIP) and homogenization10.1016/j.msea.2015.08.078 ↗
52. Grain boundary width, energy and self-diffusion in nickel: effect of material purity10.1016/j.actamat.2013.05.010 ↗
53. A diffusional analysis of the oxidation of binary multiphase alloys10.1007/BF00664707 ↗
54. The influence of imperfections on the nucleation and propagation of buckling driven delaminations10.1016/S0022-5096(99)00050-2 ↗
55. Microstructure parameters affecting interfacial adhesion of thermal barrier coatings by the EB-PVD method10.1016/j.msea.2013.11.054 ↗
56. Observations and analyses of failure mechanisms in thermal barrier systems with two phase bond coats based on NiCoCrAlY10.1016/j.actamat.2003.11.025 ↗
57. The influence of the reactive element yttrium on the stress in alumina scales formed by oxidation10.1016/S1359-6454(96)00258-3 ↗
58. Y-Hf co-doped AlCoCrFeNi high-entropy alloy coating with superior oxidation and spallation resistance at 1100 °C10.1016/j.corsci.2021.109267 ↗
59. MCrAlY creep behaviour modelling by means of finite-element unit cells and self-consistent constitutive equations
60. High temperature stress and its influence on surface rumpling in NiCoCrAlY bond coat10.1016/j.actamat.2017.08.001 ↗
61. Sluggish diffusion in Co–Cr–Fe–Mn–Ni high-entropy alloys10.1016/j.actamat.2013.04.058 ↗
62. Understanding of failure mechanisms of the oxide scales formed on nanocrystalline coatings with different Al content during cyclic oxidation10.1016/j.actamat.2020.116576 ↗
63. Significantly improving the oxidation and spallation resistance of a MCrAlY alloy by controlling the distribution of yttrium10.1016/j.corsci.2019.03.051 ↗
64. Effect of alloyed Lu, Hf and Cr on the oxidation and spallation behavior of NiAl10.1016/j.corsci.2017.07.016 ↗
65. Effect of grit-blasting on the competitive growth between θ-Al2O3 and α-Al2O3 during the oxidation of β-(Ni,Pt)Al bond coat systems10.1016/j.matlet.2020.128288 ↗
66. Atom probe study of impurity segregation at grain boundaries in chromia scales grown in CO2 gas10.1016/j.corsci.2017.12.024 ↗
67. Modelling of phase equilibria in MCrAlY coating systems10.1016/j.surfcoat.2004.02.018 ↗
68. Influence of composition and phase distribution on the oxidation behaviour of NiCoCrAlY alloys10.4028/www.scientific.net/MSF.369-372.165 ↗
69. Crystal-structure and compression of ruby to 46 kbar10.1063/1.324598 ↗
70. Stress evolution in a Pt-diffused γ/γ' bond coat after oxidation10.1016/j.surfcoat.2014.02.065 ↗