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Degradation Properties of Refractory MoNbTaVW High-Entropy Alloys with Simultaneous Si/Al Pack Cementation Coatings Under High-Temperature Flame Tests

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Abstract

This paper aims to improve the oxidation resistance of MoNbTaVW (at%) refractory high-entropy alloys after flame tests at 1350 ℃ with Si/Al pack cementation coatings. After the Si/Al pack cementation coatings were applied, a coating layer of about 80 μm with a sequence of Si-rich layer (silicide)/interdiffusion layer/Al-rich layer (aluminide)/Al diffusion layer was formed. After the flame tests at 1350 °C for 20 min, the uncoated specimens formed composite oxides of Nb2O5 (s), Ta2O5 (s), and V2O5 (s) with porosity of MoO3 (g) and WO3 (g) with a weight gain. On the other hand, the Si/Al coated specimens were composed of Si-rich layer (silicide)/interdiffusion layer/Al-rich layer (aluminide)/Al diffusion layer. After the flame tests, SiO2 and Al2O3 ceramic protective layers were formed on the surface and prevented additional oxidation. The oxidation behaviors of MoNbTaVW alloys and the Si/Al pack cementation coated alloys were discussed with microstructures and phase development.

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References

  1. K. S. Choi, et al., Growth kinetics and isothermal oxidation behavior of a Si pack cementation-coated Mo-Si-B alloy. Appl. Surf. Sci. 489, 2019 (668).

    Article  CAS  Google Scholar 

  2. K. S. Choi, Y. J. Kim, M. K. Kim, S. Y. Lee, S. Lee, and J. S. Park, Oxidation behavior of MoSi2-Coated TZM alloys during isothermal exposure at high temperatures. Coatings 8, 2018 (218).

    Article  Google Scholar 

  3. B. P. Bewlay, M. R. Jackson, P. R. Subramanian, and J. C. Zhao, A review of very-high-temperature Nb-silicide–based composites. Metall. Mater. Trans. A 34, 2003 (2043).

    Article  Google Scholar 

  4. J. C. Cheng, S. H. Yi, and J. S. Park, Oxidation behaviors of Nb-Si-B ternary alloys at 1100 °C under ambient atmosphere. Intermetallics 23, 2012 (12).

    Article  CAS  Google Scholar 

  5. J. S. Park, J. M. Kim, and H. Y. Kim, Oxidation and mechanical behaviors of two phase (Mo+T2(Mo5SiB2)) and three phase (Mo+T2(Mo5SiB2)+Mo3Si) alloys at 1073 K and 1373 K. Prakt. Metallogr. 50, 2013 (107).

    Article  CAS  Google Scholar 

  6. O. N. Senkov, D. B. Miracle, and K. J. Chaput, Development and exploration of refractory high entropy alloys-A review. J. Mater. Res. 33, 2018 (3092).

    Article  CAS  Google Scholar 

  7. O. N. Senkov, G. B. Wilks, D. B. Miracle, C. P. Chuang, and P. K. Liaw, Refractory high-entropy alloys. Intermetallics 18, 2010 (1758).

    Article  CAS  Google Scholar 

  8. O. N. Senkov, G. B. Wilks, J. M. Scott, and D. B. Miracle, Mechanical properties of Nb25Mo25Ta25W25 and V20Nb20Mo20Ta20W20 refractory high entropy alloys. Intermetallics 19, 2011 (698).

    Article  CAS  Google Scholar 

  9. R. Sakidja, F. Rioult, J. Werner, and J. H. Perepezko, Aluminum pack cementation of Mo-Si-B alloys. Scr. Mater. 55, 2006 (903).

    Article  CAS  Google Scholar 

  10. R. J. Ackermann and E. G. Rauh, A thermodynamic study of the tungsten-oxygen system at high temperatures. J. Phys. Chem. 67, 1963 (2596).

    Article  CAS  Google Scholar 

  11. K. N. Marushkin, et al., Sublimation thermodynamics of tungsten trioxide. J. Chem. Thermodynamics 17, 1985 (245).

    Article  CAS  Google Scholar 

  12. J. S. Park, R. Sakidja, and J. H. Perepezko, Coating designs for oxidation control of Mo–Si–B alloys. Scr. Mater. 46, 2002 (765).

    Article  CAS  Google Scholar 

  13. J. H. Perepezko and R. Sakidja, Oxidation-resistant coatings for ultra-high-temperature refractory Mo-based alloys. JOM 62, 2010 (13).

    Article  CAS  Google Scholar 

  14. S. Majumdar, Formation of MoSi2 and Al doped MoSi2 coatings on molybdenum base TZM (Mo–0.5Ti–0.1Zr–0.02C) alloy. Surf. Coat. Technol. 206, 2012 (3393).

    Article  CAS  Google Scholar 

  15. J. Cheng, S. Yi, and J. S. Park, Simultaneous coating of Si and B on Nb–Si–B alloys by a halide activated pack cementation method and oxidation behaviors of the alloys with coatings at 1100 ℃. J. Alloys Compd. 644, 2015 (975).

    Article  CAS  Google Scholar 

  16. C. W. Tsi, K. C. Sung, K. Kasai, and H. Murakami, Isothermal oxidation of aluminized coatings on high-entropy alloys. Entropy 18, 2016 (376).

    Article  Google Scholar 

  17. J. Pang, W. Wang, and C. Zhou, Microstructure evolution and oxidation behavior of B modified MoSi2 coating on Nb–Si based alloys. Corros. Sci. 105, 2016 (1).

    Article  CAS  Google Scholar 

  18. D. Schliephake, C. Gombola, A. Kauffmann, M. Heilmaier, and J. H. Perepezko, Enhanced oxidation resistance of Mo–Si–B–Ti alloys by pack cementation. Oxid. Met. 88, 2017 (267).

    Article  CAS  Google Scholar 

  19. J. H. Perepezko, High temperature environmental resistant Mo-Si-B based coatings. Int. J. Refract. Hard Met. 71, 2018 (246).

    Article  CAS  Google Scholar 

  20. S. Majumdar and I. G. Sharma, Oxidation behavior of MoSi2 and Mo(Si, Al)2 coated Mo-05Ti-01Zr-002C alloy. Intermetallics 19, 2011 (541).

    Article  CAS  Google Scholar 

  21. S. R. Levine and R. M. Caves, Thermodynamics and kinetics of pack aluminide coating formation on IN-100. J. Electrochm. Soc. 121, 1974 (1051).

    Article  CAS  Google Scholar 

  22. K. Yoshimi, S. Nakatani, T. Suda, S. Hanada, and H. Habazaki, Oxidation behavior of Mo5SiB2-based alloy at elevated temperatures. Intermetallics 10, 2002 (407).

    Article  CAS  Google Scholar 

  23. S. Paswan, R. Mitra, and S. K. Roy, Isothermal oxidation behaviour of Mo–Si–B and Mo–Si–B–Al alloys in the temperature range of 400–800 ℃. J. Mater. Sci. Eng. A 424, 2006 (251).

    Article  Google Scholar 

  24. W. Yang, K. Choi, K.-H. Baik, Y. Kim, S. Lee, J. Kim, J. Lee, and J. S. Park, Oxidation behaviors of Si/Al pack cementation coated Mo–3Si–1B alloys at various temperatures. Met. Mater. Int. 27, 2021 (914).

    Article  CAS  Google Scholar 

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Acknowledgements

The financial support of Hanbat National University in 2020 (Contract No. 202003230001) is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Hanbat National University, Daejeon, 34158, Republic of Korea

    Wonchul Yang, Kwangsu Choi, Chansik Choi & Joon Sik Park

  2. Department of Materials Science and Metallurgical Engineering, Kyungpook National University, Daegu, 41566, Republic of Korea

    Kwangsu Choi

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  1. Wonchul Yang
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  2. Kwangsu Choi
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  4. Joon Sik Park
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Yang, W., Choi, K., Choi, C. et al. Degradation Properties of Refractory MoNbTaVW High-Entropy Alloys with Simultaneous Si/Al Pack Cementation Coatings Under High-Temperature Flame Tests. Oxid Met 96, 557–569 (2021). https://doi.org/10.1007/s11085-021-10072-5

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