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Reduction of Freckle Defect in Single-Crystal Blade Root by Controlling Local Cooling Conditions

Abstract

The reduction of freckle defect in the single-crystal blade root by controlling local cooling conditions was investigated. Application of the IRBs technique increased the temperature gradient from about 10 to 21 K/cm, thus reducing PDAS in the root compared to the standard Bridgman process. Refinement of the microstructure and reduction of the curvature of the liquidus isotherm resulted in mitigation or elimination of freckle in the area near the root edge.

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References

  1. J. Cormier and Ch.-A. Gandin: in Nickel Base Single Crystals Across Length Scales, G. Cailletaud, J. Cormier, G. Eggeler, V. Maurel, and L. Nazé, eds., Elsevier, 2022, pp. 193–222.

  2. L. Yuan and P.D. Lee: Acta Mater., 2012, vol. 60, pp. 4917–26.

    CAS  Article  Google Scholar 

  3. D. Ma, Q. Wu, and A. Bührig-Polaczek: Metall. Mater. Trans. B, 2012, vol. 43B, pp. 344–53.

    Article  Google Scholar 

  4. N. Ren, J. Li, Ch. Panwisawas, M. Xia, H. Dong, and J. Li: J. Manuf. Process., 2022, vol. 77, pp. 219–28.

    Article  Google Scholar 

  5. N. Ren, Ch. Panwisawas, J. Li, M. Xia, H. Dong, and J. Li: Acta Mater., 2021, vol. 215, 117043.

    CAS  Article  Google Scholar 

  6. G. Reinhart, D. Grange, L. Abou-Khalil, N. Mangelinck-Noël, N.T. Niane, V. Maguin, G. Guillemot, C.-A. Gandin, and H. Nguyen-Thi: Acta Mater., 2020, vol. 194, pp. 68–79.

    CAS  Article  Google Scholar 

  7. C. Beckermann, J.P. Gu, and W.J. Boettinger: Metall. Mater. Trans. A, 2000, vol. 31A, pp. 2545–57.

    CAS  Article  Google Scholar 

  8. T.M. Pollock and W.H. Murphy: Metall. Mater. Trans. A, 1996, vol. 27A, pp. 1081–94.

    Article  Google Scholar 

  9. J.C. Ramirez and C. Beckermann: Metall. Mater. Trans A, 2003, vol. 34A, pp. 1525–36.

    CAS  Article  Google Scholar 

  10. D. Han, W. Jiang, J. Xiao, K. Li, Y. Lu, W. Zheng, S. Zhang, and L. Lou: J. Alloys Compd., 2019, vol. 805, pp. 218–28.

    CAS  Article  Google Scholar 

  11. Q. Li, J. Shen, L. Qin, and Y. Xiong: Mater. Character., 2017, vol. 130, pp. 139–48.

    CAS  Article  Google Scholar 

  12. R. Schadt, I. Wagner, J. Preuhs, and P.R. Sahm: Superalloys, 2000, vol. 2000, pp. 211–18.

    Google Scholar 

  13. D.X. Ma, B. Zhou, and A. Bührig-Polaczek: Adv. Mater. Res., 2011, vol. 278, pp. 428–33.

    CAS  Article  Google Scholar 

  14. F. Wang, Z. Wu, C. Huang, D. Ma, J. Jakumeit, and A. Bührig-Polaczek: Metall. Mater. Trans. A, 2017, vol. 48A, pp. 5924–39.

    Article  Google Scholar 

  15. J. Strickland, B. Nenchev, K. Tassenberg, S. Perry, G. Sheppard, H. Dong, R. Zhang, G. Burca, and N. D’Souza: Acta Mater., 2021, vol. 217, 117180.

    CAS  Article  Google Scholar 

  16. D. Szeliga, K. Kubiak, and J. Sieniawski: J. Mater. Process. Technol., 2016, vol. 234, pp. 18–26.

    CAS  Article  Google Scholar 

  17. D.X. Ma, Z.H. Dong, F. Wang, and H.B. Dong: Metall. Mater. Trans. A, 2020, vol. 51A, pp. 88–92.

    Article  Google Scholar 

  18. D. Szeliga: Int. Commun. Heat Mass Transf., 2020, vol. 118, 104868.

    CAS  Article  Google Scholar 

  19. D. Szeliga, K. Gancarczyk, and W. Ziaja: Adv. Eng. Mater., 2018, vol. 20, p. 1700973.

    Article  Google Scholar 

  20. D. Szeliga: Metall. Mater. Trans B, 2018, vol. 49B, pp. 2550–70.

    Article  Google Scholar 

  21. T.M. Pollock, W.H. Murphy, E.H. Goldman, D.L. Uram, and J.S. Tu: Superalloys, 1992, vol. 1992, pp. 125–34.

    Google Scholar 

  22. J.A. Dantzig and M. Rappaz: Solidification, EPFL Press, Lausanne, 2009, p. 590.

    Book  Google Scholar 

  23. N. Ren, J. Li, Ch. Panwisawas, M. Xia, H. Dong, and J. Li: Acta Mater., 2021, vol. 206, 116620.

    CAS  Article  Google Scholar 

  24. S. Karagadde, L. Yuan, N. Shevchenko, S. Eckert, and P.D. Lee: Acta Mater., 2014, vol. 79, pp. 168–80.

    CAS  Article  Google Scholar 

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Szeliga, D. Reduction of Freckle Defect in Single-Crystal Blade Root by Controlling Local Cooling Conditions. Metall Mater Trans A 53, 3224–3231 (2022). https://doi.org/10.1007/s11661-022-06752-9

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