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Cyclic oxidation behavior of Cr-/Si-modified NiAlHf coatings on single-crystal superalloy produced by EB-PVD

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Abstract

The Cr-/Si-modified NiAlHf coatings were produced on single-crystal (SC) superalloy N5 by electron beam physical vapor deposition (EB-PVD). The cyclic oxidation behavior of the coatings at 1100 °C was investigated. The microstructures of the oxide scales grown on the coatings were characterized by scanning electron microscope (SEM) with energy-dispersive X-ray spectrum (EDX), electron probe micro-analyzer (EPMA) and X-ray diffraction (XRD). The effects of Cr and Si on the cyclic oxidation behavior of the NiAlHf coatings were discussed. The addition of Si to the NiAlHfCr coating not only reduces the oxidation rate but also enhances the oxide scale adherence. Owing to the addition of Si in the coating, the segregation of Cr and Mo beneath the oxide scale is effectively avoided, which contributes to enhancing oxide scale adherence.

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References

  1. Miracle DB. The physical mechanical properties of NiAl. Acta Metall Mater. 1993;41(3):649.

    Article  Google Scholar 

  2. Baker I. A review of the mechanical properties of B2 compounds. Mater Sci Eng A. 1995;192–193(1):1.

    Article  Google Scholar 

  3. Sivakumar R, Mordike BL. High temperature coatings for gas turbine blades: a review. Surf Coat Technol. 1989;37(2):139.

    Article  Google Scholar 

  4. Li HF, Tao SF, Zhou ZH, Sun LD, Hesnawi A, Gong SK. Element diffusion during fabrication of EB-PVD NiAl coating and its 1100 °C isothermal oxidation behavior (II). Surf Coat Technol. 2007;201(15):6589.

    Article  Google Scholar 

  5. Guo HB, Sun LD, Li HF, Gong SK. High temperature oxidation behavior of hafnium modified NiAl bond coat in EB-PVD thermal barrier coating system. Thin Solid Films. 2008;516(16):5732.

    Article  Google Scholar 

  6. Yu Z, Hass DD, Wadley HNG. NiAl bond coats made by a directed vapor deposition approach. Mater Sci Eng A. 2005;394(1–2):43.

    Article  Google Scholar 

  7. Liu PS, Liang KM, Gu SR. High-temperature oxidation behavior of aluminide coatings on a new cobalt-base superalloy in air. Corros Sci. 2001;43(7):1217.

    Article  Google Scholar 

  8. Pint BA, Wright IG, Lee WY, Zhang Y, Prüßner K, Alexander KB. Substrate and bond coat compositions: factors affecting alumina scale adhesion. Mater Sci Eng A. 1998;245(2):201.

    Article  Google Scholar 

  9. Pint BA. The oxidation behavior of oxide-dispersed β-NiAl: I. Short-term performance at 1200 °C. Oxid Met. 1998;49(5–6):531.

    Article  Google Scholar 

  10. Guo HB, Zhang T, Wang SX, Gong SK. Effect of Dy on oxide scale adhesion of NiAl coatings at 1200 °C. Corros Sci. 2011;53(6):2228.

    Article  Google Scholar 

  11. Guo HB, Li DQ, Peng H, Cui YJ, Gong SK. High-temperature oxidation and hot-corrosion behaviour of EB-PVD β-NiAlDy coatings. Corros Sci. 2011;53(3):1050.

    Article  Google Scholar 

  12. Barrett CA. Effect of 0.1 at.% zirconium on the cyclic oxidation resistance of β-NiAl. Oxid Met. 1988;30(5–6):361.

    Article  Google Scholar 

  13. Hindam H, Whittle DP. Microstructure, adhesion and growth kinetics of protective scales on metals and alloys. Oxid Met. 1982;18(5–6):245.

    Article  Google Scholar 

  14. Hou PY, Priimak K. Interfacial segregation, pore formation, and scale adhesion on NiAl alloys. Oxid Met. 2005;63(1–2):113.

    Article  Google Scholar 

  15. Leyens C, Wright IG, Pint BA. Hot corrosion of an EB-PVD thermal barrier coating system at 950 °C. Oxid Met. 2000;54(5–6):401.

    Article  Google Scholar 

  16. Sidhu TS, Agrawal RD, Prakash S. Hot corrosion of some superalloys and role of high-velocity oxy-fuel spray coatings-a review. Surf Coat Technol. 2005;198(1):441.

    Article  Google Scholar 

  17. He J, Luan Y, Guo HB, Peng H, Zhang YL, Zhang T, Gong SK. The role of Cr and Si in affecting high-temperature oxidation behavior of minor Dy doped NiAl alloys. Corros Sci. 2013;77:322.

    Article  Google Scholar 

  18. Bestor MA, Alfano JP, Weaver ML. Influences of chromium and hafnium additions on the microstructures of β-NiAl coatings on superalloy substrates. Intermetallics. 2011;19(11):1693.

    Article  Google Scholar 

  19. Pint BA, More KL, Wright IG. Effect of quaternary additions on the oxidation behavior of Hf-doped NiAl. Oxid Met. 2003;59(3–4):257.

    Article  Google Scholar 

  20. Zhang T, Guo H, Gong S, Xu HB. Effects of Dy on the adherence of Al2O3/NiAl interface: a combined first-principles and experimental studies. Corros Sci. 2013;66:59.

    Article  Google Scholar 

  21. Bai B, Guo HB, Peng H, Peng LQ, Gong SK. Cyclic oxidation and interdiffusion behavior of a NiAlDy/RuNiAl coating on a Ni-based single crystal superalloy. Corros Sci. 2011;53(9):2721.

    Article  Google Scholar 

Download references

Acknowledgments

This work was financially supported by the National Basic Research Program of China (Nos. 2012CB625100 and 2010CB631200) and the National Natural Science Foundation of China (No. 51231001).

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Correspondence to Hong-Bo Guo.

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Wang, L., Pan, LL., Peng, H. et al. Cyclic oxidation behavior of Cr-/Si-modified NiAlHf coatings on single-crystal superalloy produced by EB-PVD. Rare Met. 35, 396–400 (2016). https://doi.org/10.1007/s12598-015-0482-9

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  • DOI: https://doi.org/10.1007/s12598-015-0482-9

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