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A combined experimental and first-principle study on the effect of plasma surface Ta–W co-alloying on the oxidation behavior of γ-TiAl at 900 °C

  • Dongbo Wei (a1), Fengkun Li (a2), Shuqin Li (a2), Shiyuan Wang (a2), Feng Ding (a2), Hongxuan Liang (a2), Yuqin Yan (a2) and Pingze Zhang (a2)...

Abstract

Ta–W co-alloying was realized by double glow plasma surface metallurgy technology, and their effects on high-temperature oxidation behavior of γ-TiAl were studied. Ta–W co-alloying coating was composed of a deposited layer and interdiffusion layer. The results of isothermal oxidation experiment indicated that a compact mixed oxide film of Ta and W was formed on the sample. The interdiffusion layer reduced the oxygen intrusion that improved the high-temperature oxidation resistance of γ-TiAl. The effects of Ta–W co-alloying on oxygen adsorption energy and electronic structure of γ-TiAl(111) were analyzed by first-principle calculation. The results showed that the optimal adsorption sites of O atoms changed from fcc-Al to hcp-Ti and hcp-Al, indicating that Ta–W co-alloying inhibited the diffusion of O. The electronic structure analysis of γ-TiAl(111) after Ta–W alloying indicated the affinity of Ti and O was inhibited, which resulted in decreased TiO2 in the oxide film.

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Corresponding author

a)Address all correspondence to these authors. e-mail: weidongbo@nuaa.edu.cn

References

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1.Helleiner, G.K.: Research and development of advanced new type titanium alloys for aeronautical applications. Aerosp. Sci. Technol. 25, 158177 (2012).
2.Yoshihara, M. and Kim, Y.W.: Oxidation behavior of gamma alloys designed for high temperature applications. Intermetallics 13, 952958 (2005).
3.Yamaguchi, M., Inui, H., and Ito, K.: High-temperature structural intermetallics. Acta Mater. 48, 307322 (2000).
4.Maurice, V., Despert, G., Zanna, S., Josso, P., Bacos, M-P., and Marcus, P.: XPS study of the initial stages of oxidation of α-TiAl and γ-TiAl intermetallic alloys. Acta Mater. 55, 33153325 (2007).
5.Mishin, Y. and Herzig, C.: Diffusion in the Ti–Al system. Acta Mater. 48, 589623 (2000).
6.Haanappel, V.A.C., Clemens, H., and Stroosnijder, M.F.: The high temperature oxidation behaviour of high and low alloyed TiAl-based intermetallics. Intermetallics 10, 293305 (2002).
7.Kim, Y.W.: Intermetallic alloys based on gamma titanium aluminide. JOM 41, 2430 (1989).
8.Wang, J., Kong, L., Wu, J., Li, T., and Xiong, T.: Microstructure evolution and oxidation resistance of silicon-aluminizing coating on γ-TiAl alloy. Appl. Surf. Sci. 356, 827836 (2015).
9.Brady, M.P., Brindley, W.J., Smialek, J.L., and Locci, I.E.: The oxidation and protection of gamma titanium aluminides. JOM 48, 4650 (1996).
10.Djanarthany, S., Viala, J.C., and Bouix, J.: An overview of monolithic titanium aluminides based on Ti3Al and TiAl. Mater. Chem. Phys. 72, 301319 (2001).
11.Zhang, X.J., Li, Q., Zhao, S.Y., Gao, C.X., Wang, L., and Zhang, J.: Improvement in the oxidation resistance of a γ-TiAl-based alloy by sol–gel derived Al2O3 film. Appl. Surf. Sci. 28, 223232 (2009).
12.Mishin, Y. and Herzig, C.: Diffusion in the Ti–Al system. Acta Mater. 48, 589623 (2000).
13.Shanabarger, M.R.: Comparative study of the initial oxidation behavior of a series of titanium–aluminum alloys. Appl. Surf. Sci. 134, 179186 (1998).
14.Brady, M.P., Brindley, W.J., Smialek, J.L., and Locci, I.E.: The oxidation and protection of gamma titanium aluminides. J. Miner. Met. Mater. Soc. 48, 4650 (1996).
15.Mitoraj, M., Godlewska, E., Heintz, O., Geoffroy, N., Fontana, S., and Chevalier, S.: Scale composition and oxidation mechanism of the Ti–46Al–8Nb alloy in air at 700 and 800 °C. Intermetallics 19, 3947 (2011).
16.Vojtěch, D., Popela, T., Kubásek, J., Maixner, J., and Novák, P.: Comparison of Nb- and Ta-effectiveness for improvement of the cyclic oxidation resistance of TiAl-based intermetallics. Intermetallics 19, 493501 (2011).
17.Zhao, C.Y., Wang, X., and Wang, F.H.: First-principles study of Nb doping effect on the diffusion of oxygen atom in γ-TiAl. Adv. Mater. Res. 304, 148153 (2011).
18.Song, J., Zhang, P.Z., Wei, D.B., Wei, X-F., and Wang, Y.: Isothermal oxidation behavior and microstructure of plasma surface Ta coating on γ-TiAl. Mater. Charact. 98, 5459 (2014).
19.Mitoraj, E.M.: Oxidation of Ti–46Al–8Ta in air at 700 and 800 °C under thermal cycling conditions. Intermetallics 34, 112121 (2013).
20.Pflumm, R., Friedle, S., and Schütze, M.: Oxidation protection of γ-TiAl-based alloys—A review. Intermetallics 56, 114 (2015).
21.Brotzu, A., Felli, F., and Pilone, D.: Effect of alloying elements on the behaviour of TiAl-based alloys. Intermetallics 54, 176180 (2014).
22.Kartavykh, A.V., Gorshenkov, M.V., Tcherdyntsev, V.V., and Podgorny, D.A.: On the state of boride precipitates in grain refined TiAl-based alloys with high Nb content. J. Alloys Compd. 586, S153S158 (2014).
23.Lin, J.P., Zhao, L.L., Li, G.Y., Zhang, L.Q., Song, X.P., Ye, F., and Chen, G.L.: Effect of Nb on oxidation behavior of high Nb containing TiAl alloys. Intermetallics 19, 131136 (2011).
24.Popela, T., Vojtěch, D., Vogt, J-B., and Michalcová, A.: Structural, mechanical and oxidation characteristics of siliconized Ti–Al–X (X = Nb, Ta) alloys. Appl. Surf. Sci. 307, 579588 (2014).
25.Popela, T. and Vojtěch, D.: Characterization of pack-borided last-generation TiAl intermetallics. Surf. Coat. Technol. 209, 9096 (2012).
26.Loretto, M.H., Wu, Z., Chu, M.Q., Saage, H., Hu, D., and Attallah, M.M.: Deformation of microstructurally refined cast Ti46Al8Nb and Ti46Al8Ta. Intermetallics 23, 111 (2012).
27.Lapin, J., Pelachová, T., Witusiewicz, V.T., and Dobročka, E.: Effect of long-term ageing on microstructure stability and lattice parameters of coexisting phases in intermetallic Ti–46Al–8Ta alloy. Intermetallics 19, 121124 (2011).
28.Yuanyuan, L., Weidong, Z., Zhengping, X., Xiaonan, M., Yingli, Y., Jinping, W., and Hangbiao, S.: Microstructure, mechanical properties and oxidation behavior of a hot-extruded Ti Al containing Ta. Rare Metal Mater. Eng. 44, 02820287 (2015).
29.Ding, X., Shen, Y., Wang, X., Tan, Y, and Wang, F.G.: Influence of W, Cr on the high-temperature oxidation resistance of four α-Ti Al based alloys with high Nb content. Rare Metal Mater. Eng. 33, 543547 (2011).
30.Liu, Z., Lin, J., and Chen, G.: Effect of the addition W on the microstructure and mechanical properties for high-Nb TiAl alloy. Trans. Mater. Heat Treat. 22, 713 (2011).
31.Chen, Y-Y., Hung, S-B., Wang, C-J., Wei, W-C., and Lee, J-W.: High temperature electrical properties and oxidation resistance of V–Nb–Mo–Ta–W high entropy alloy thin films. Surf. Coat. Technol. 375, 854863 (2019).
32.Hong, L.I., Liu, L., Wang, S., and Ye, H.Q: First-principles study of oxygen atom adsorption on γ-TiAl(111) surface. Acta Metall. Sin. 42, 897902 (2006).
33.Liu, S.Y., Shang, J.X., Wang, F.H., and Zhang, Y.: Surface segregation of Si and its effect on oxygen adsorption on a γ-TiAl(111) surface from first principles. J. Phys.: Condens. Matter 21, 225005 (2009).
34.Dan, L.I., Zhang, G.Y., Liang, T., Chu, R., and Zhu, S.L.: First-principles study on the influence of alloying when oxygen absorption on the surface of γ-TiAl(111). J. Shenyang Norm. Univ. (2011).
35.Xu, Z. and Xiong, F.F.: Plasma Surface Metallurgy (Springer, Singapore, 2017).

Keywords

A combined experimental and first-principle study on the effect of plasma surface Ta–W co-alloying on the oxidation behavior of γ-TiAl at 900 °C

  • Dongbo Wei (a1), Fengkun Li (a2), Shuqin Li (a2), Shiyuan Wang (a2), Feng Ding (a2), Hongxuan Liang (a2), Yuqin Yan (a2) and Pingze Zhang (a2)...

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