High temperature isothermal oxidation behavior of electron beam melted multi-phase γ-TiAl alloy
Source abstract
Abstract
Abstract The γ-TiAl alloys fabricated by additive manufacturing have gathered significant attention in recent years due to their unique microstructural features and properties. However, the oxidation kinetics of additively manufactured γ-TiAl alloys have not been studied thoroughly. Herein, the TNM-B1 alloy was fabricated with the help of electron beam melting (EBM) for the first time and tested for 100 h over a temperature range of 800 °C-1000 °C; this was aimed at investigating its isothermal oxidation kinetics. Subsequently, the exposed samples were systematically analyzed to study the oxide scales, which was achieved with the help of X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). Spallation was observed at 900 °C and 1000 °C after an exposure of 30 h and 5 h, respectively. The results showed that the oxide comprises alternative layers of Al2O3, TiO2, and mixture phases. The oxidation resistance of the EBM-processed TNM-B1 alloy was observed to be superior to those of the conventionally processed TNM-B1 and other γ-TiAl alloys. Finally, the significance of a fine fully lamellar microstructure on the oxidation kinetics of TNM-B1 alloy was explained.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Intermetallics and Advanced Alloy Properties · High-Temperature Coating Behaviors · Nuclear Materials and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (89)
Show source-provided references
1. Advancement of compositional and microstructural design of intermetallic γ-TiAl based alloys determined by atom probe tomography10.3390/ma9090755 ↗
2. Microstructure and mechanical properties of gamma TiAl based alloys produced by combustion synthesis+compaction route10.1016/j.intermet.2008.08.007 ↗
3. Application of cast gamma TiAl for automobiles10.1016/S0966-9795(98)00060-0 ↗
4. Synthesizing gamma-TiAl alloys by reactive powder processing
5. Thermomechanical characterization of β-stabilized Ti–45Al–7Nb–0.4W–0.15B alloy10.1016/j.intermet.2011.03.021 ↗
6. Characterization of hot deformation behavior and processing maps of Ti–19Al–22Mo alloy10.1007/s12540-018-00237-4 ↗
7. Design, processing, microstructure, properties, and applications of advanced intermetallic TiAl alloys10.1002/adem.201200231 ↗
8. High-temperature oxidation behavior of multi-phase Mo-containing γ-TiAl-based alloys10.1016/j.intermet.2014.04.010 ↗
9. Physical metallurgy for wrought gamma titanium aluminides: microstructure control through phase transformations10.1016/j.intermet.2004.12.014 ↗
10. Characterization of an additive manufactured TiAl alloy-steel joint produced by electron beam welding10.3390/ma11010149 ↗
11. Effects of Al and heat treatment on the microstructure and hardness of Ti–Al synthesized via in situ melting using LENS10.3390/met9060623 ↗
12. Corrosion behavior of additively manufactured Ti-6Al-4V parts and the effect of post annealing
13. Microstructural response of β-stabilized Ti–6Al–4V manufactured by direct energy deposition10.1016/j.jallcom.2019.152021 ↗
14. A novel method to fabricate TiAl intermetallic alloy 3D parts using additive manufacturing10.1016/j.dt.2016.08.001 ↗
15. Characterization of titanium aluminide alloy components fabricated by additive manufacturing using electron beam melting10.1016/j.actamat.2009.11.032 ↗
16. Effect of building direction on the microstructure and tensile properties of Ti-48Al-2Cr-2Nb alloy additively manufactured by electron beam melting
17. Electron beam melting of Ti-48Al-2Nb-0.7Cr-0.3Si: feasibility investigation10.1016/j.intermet.2016.03.001 ↗
18. Microstructure of γ-titanium aluminide processed by selective laser melting at elevated temperatures10.1016/j.intermet.2015.07.005 ↗
19. Selective laser melting of an oxide dispersion strengthened (ODS) γ-TiAl alloy towards production of complex structures10.1016/j.matdes.2017.08.034 ↗
20. Effect of substrate preheating on the texture, phase and nanohardness of a Ti–45Al–2Cr–5Nb alloy processed by selective laser melting10.1016/j.scriptamat.2016.02.022 ↗
21. The optimisation of processing parameters and characterisation of microstructure of direct laser fabricated TiAl alloy components10.1016/S0261-3069(99)00091-6 ↗
22. Microstructure and phase evolution in γ-TiAl/Ti2AlNb dual alloy fabricated by direct metal deposition10.1016/j.intermet.2018.12.008 ↗
23. In-situ synthesis of titanium aluminides by direct metal deposition10.1016/j.jmatprotec.2016.08.031 ↗
24. Selective electron beam melting of NiTi: microstructure, phase transformation and mechanical properties10.1016/j.msea.2018.12.023 ↗
25. Heat treatment of laser metal deposited TiAl TNM alloy10.1016/j.intermet.2018.02.002 ↗
26. Selective laser melting of a beta-solidifying TNM-B1 titanium aluminide alloy10.1016/j.jmatprotec.2014.04.002 ↗
27. High strength and ductility of electron beam melted β stabilized γ-TiAl alloy at 800°C10.1016/j.msea.2019.03.114 ↗
28. Oxidation behavior of gamma alloys designed for high temperature applications10.1016/j.intermet.2004.12.007 ↗
29. High-temperature oxidation behavior of TiAl-based alloys fabricated by spark plasma sintering10.1016/j.jallcom.2008.11.134 ↗
30. Oxidation protection of γ-TiAl-based alloys – a review10.1016/j.intermet.2014.08.002 ↗
31. Effects of grain sizes on the oxidation behavior of Ni-based alloy 230 and N10.1016/j.jallcom.2018.04.173 ↗
32. High temperature oxidation behaviour of TiAl–Cr–Nb–Mo alloys10.1016/j.intermet.2013.07.023 ↗
33. Role of alloying elements during thermocyclic oxidation of β/γ-TiAl alloys at high temperatures10.1016/j.jallcom.2016.08.259 ↗
34. Microstructural evolution and high-temperature oxidation mechanisms of a titanium aluminide based alloy10.1016/j.actamat.2018.02.013 ↗
35. Features of intermetallic alloy TNM-B1 high-temperature oxidation10.1007/s11041-016-0001-0 ↗
36. Oxidation behavior of protective Ti-Al-Cr based coatings applied on the γ-TiAl alloys Ti-48-2-2 and TNM-B110.1016/j.surfcoat.2018.05.067 ↗
37. Metal additive manufacturing: a review10.1007/s11665-014-0958-z ↗
38. Experimental studies and thermodynamic simulations of phase transformations in Ti-(41-45)Al-4Nb-1Mo-0.1B alloys10.1557/proc-1128-u03-06 ↗
39. High temperature oxidation behavior and research status of modifications on improving high temperature oxidation resistance of titanium alloys and titanium aluminides: a review10.1016/j.jallcom.2016.06.212 ↗
40. Phase equilibria and diffusion paths in the Ti–Al–O–N system10.1016/S0925-8388(00)01409-2 ↗
41. Isothermal oxidation behavior of powder metallurgy beta gamma TiAl–2Nb–2Mo alloy10.1016/j.intermet.2011.05.027 ↗
42. TEM investigation of the oxide scale of Ti–4610.1016/j.intermet.2006.10.014 ↗
43. Anada · 1994
44. Microstructure, mechanical properties, hot deformation and oxidation behavior of Ti–45Al–5.4V–3.6Nb–0.3Y alloy10.1016/j.jallcom.2010.03.118 ↗
45. Isothermal oxidation behavior of TiAl-Nb-W-B-Y alloys with different lamellar colony sizes10.1016/S1875-5372(16)30142-4 ↗
46. Isothermal oxidation behaviour of TiAl–Cr–Nb–B alloys produced by induction melting10.1016/j.intermet.2012.03.008 ↗
47. High-temperature oxidation behavior of TiAl-based alloys fabricated by spark plasma sintering10.1016/j.jallcom.2008.11.134 ↗
48. Oxidation behaviour of gamma titanium aluminides with or without protective coatings10.1179/1743280414Y.0000000034 ↗
49. Isothermal oxidation behavior of TiAl intermetallics with different oxygen contents10.1016/S1003-6326(19)64961-7 ↗
50. The effect of microstructure on the oxidation behaviour of TiAl-based intermetallics10.1016/0010-938X(93)90276-M ↗
51. Optimizing high-temperature oxidation behaviors of high-Nb-containing TiAl alloys by addition of boron10.1016/j.corsci.2020.108971 ↗
52. Tuning microstructures and improving oxidation resistance of Nb-Si based alloys via electron beam surface melting10.1016/j.corsci.2019.108281 ↗
53. Effect of laser shock processing on oxidation resistance of laser additive manufactured Ti6Al4V titanium alloy10.1016/j.corsci.2020.108655 ↗
54. Thermodynamic aspects of TiAl and TiSi2 oxidation: the Al-Ti-O and Si-Ti-O Phase diagrams10.1007/BF00666500 ↗
55. The influence of cooling rate during alloy casting on the oxidation behaviour of TiAl-based intermetallics10.1007/BF00365194 ↗
56. The influence of the alloy microstructure on the oxidation behavior of Ti–46Al–1Cr–0.2Si alloy10.1023/A:1004534830767 ↗
57. Enhanced oxidation resistance of TiAlNbCr processed by isothermal forging10.1016/j.jallcom.2019.152174 ↗
58. High temperature corrosion mechanisms of certain new TiAl-based intermetallic alloys in an aggressive H2/H2O/H2S environment at 850°C10.1016/j.corsci.2006.10.037 ↗
59. Fundamentals of TiAl-Oxidation—a critical review
60. Mechanism of isothermal oxidation of the intel-metallic TiAl and of TiAl alloys10.1007/BF00665663 ↗
61. Effect of Sn addition on the high-temperature oxidation behavior of high Nb-containing TiAl alloys10.1016/j.corsci.2020.108449 ↗
62. TEM investigations of the early stages of TiAl oxidation10.1007/BF01050799 ↗
63. (S)TEM study of different stages of Ti–45Al–8Nb–0.2W–0.2B–0.02Y alloy oxidation at 900°C10.1016/j.corsci.2007.11.013 ↗
64. The effect of niobium ion implantation on the oxidation behavior of aγ-TiAl-based intermetallic10.1007/BF01046882 ↗
65. Effects of Nb addition on oxidation behavior of TiAl10.1016/0966-9795(95)94254-C ↗
66. Effect of niobium on the oxidation behavior of TiAl10.1557/JMR.2007.0188 ↗
67. The influence of near service environmental conditions on the corrosion and LCF behaviour of a beta-stabilized γ-TiAl alloy10.1016/j.corsci.2020.108885 ↗
68. Influence of the alloy grain size on the oxidation behaviour of PM2000 alloy10.1016/S0010-938X(01)00182-2 ↗
69. The effect of nanocrystallization on the selective oxidation and adhesion of Al2O3 scales10.1007/BF01670500 ↗
70. The role of secondary oxide inclusions (“pegs”) on the spalling resistance of oxide films10.1016/S1359-6454(00)00081-1 ↗
71. Effect of Mo addition on the oxidation behavior of TiAl intermetallic compound10.2320/matertrans1989.36.533 ↗
72. 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 ↗
73. Effect of silicon and niobium on oxidation resistance of TiAl intermetallics
74. Oxidation behaviour of Ag-containing TiAl-based intermetallics10.1016/j.intermet.2004.04.040 ↗
75. Effect of Cr, Nb, Mn, V, W and Si on high temperature oxidation of TiAl alloys10.1007/BF03027458 ↗
76. The effect of yttrium addition on the oxidation resistance of EPM TiAl-based intermetallics10.1016/S1359-6462(03)00134-9 ↗
77. The halogen effect in the oxidation of intermetallic titanium aluminides10.1016/S0010-938X(01)00062-2 ↗
78. Improvement of the oxidation behaviour of TiAl-alloys by treatment with halogens10.1016/j.intermet.2005.11.032 ↗
79. Oxidation resistant coatings in combination with thermal barrier coatings on γ-TiAl alloys for high temperature applications10.1016/j.surfcoat.2006.07.248 ↗
80. Oxidation behaviour of gamma titanium aluminides with or without protective coatings10.1179/1743280414Y.0000000034 ↗
81. Effects of surface modification on isothermal oxidation behavior of HVOF-sprayed NiCrAlY coatings10.1016/S1002-0071(12)60052-5 ↗
82. A study of aluminide coatings on TiAl alloys by the pack cementation method10.1016/S0921-5093(02)00197-1 ↗
83. High temperature oxidation protection of γ-titanium aluminide using (Cr,Al)ON coatings deposited by high-speed physical vapor deposition10.1016/j.surfcoat.2017.09.071 ↗
84. An investigation of surface nanocrystallization mechanism in Fe induced by surface mechanical attrition treatment10.1016/S1359-6454(02)00310-5 ↗
85. Effect of shot-peening on the oxidation of alloy 800H exposed to supercritical water and cyclic oxidation10.1016/j.corsci.2008.04.008 ↗
86. Effect of shot-peening on the oxidation behaviour of boiler steels10.1007/s11085-011-9250-x ↗
87. New surface treatment using shot blast for improving oxidation resistance of TiAl-base alloys10.1016/S0921-5093(01)01585-4 ↗
88. Thermal growth of exclusive alumina scale on a TiAl based alloy: shot peening effect10.1016/j.corsci.2018.08.024 ↗
89. Microstructural refinement and improvement of mechanical properties and oxidation resistance in EPM TiAl-based intermetallics with yttrium addition10.1016/S1359-6454(02)00006-X ↗