Abstract
The solidification characteristics, such as the phase transformation temperature and partition coefficient, were investigated in four Ni-base single-crystal superalloys with varied contents of Re and Ru. Differential scanning calorimetry (DSC) analysis reveals that the liquidus and solidus temperatures decrease with increasing levels of Re additions. However, the Ru only has negligible influences on the liquidus and solidus temperatures. The partition coefficient of constituent elements is investigated by using the directional solidification followed quenching (DSQ) technique. Re is found to reduce the segregation of Re and W, whereas Ru only has negligible effects on the segregation of Re and W. For comparison, the matrix scanning is performed on the representative dendritic structures. With increasing withdrawal rate, Re and Ru additions show the stronger influences on segregation behavior of alloying elements, particularly for Al and Ta.
Similar content being viewed by others
References
R.C. Reed: The Superalloys, Cambridge University Press, Cambridge, United Kingdom, 2006, pp. 18–25.
P. Caron: in Superalloys 2000, T.M. Pollock, R.D. Kissinger, R.R. Bowman, K.A. Green, M. McLean, S. Olson, and J.J. Schirra, eds., TMS, Warrendale, PA, 2000, pp. 737–46.
W.Z. Wang, T. Jin, J.L. Liu, X.F. Sun, H.R. Guan, and Z.Q. Hu: Mater. Sci. Eng., A, 2008, vol. 479, pp. 148–56.
A. Mottura, N. Warnken, M.K. Miller, M.W. Finnis, and R.C. Reed: Acta Mater., 2010, vol. 58, pp. 931–42.
G.E. Fuchs: Mater. Sci. Eng., A, 2001, vol. 300, pp. 52–60.
M.V. Acharya and G.E. Fuchs: Mater. Sci. Eng., A, 2004, vol. 381, pp. 143–53.
S.G. Tian, M.G. Wang, T. Li, B.J. Quan, and J. Xie: Mater. Sci. Eng., A, 2010, vol. 527, pp. 5444–51.
Q. Feng, L.J. Carroll, and T.M. Pollock: Metall. Mater. Trans. A, 2006, vol. 37A, pp. 1949–62.
S. Tin, T.M. Pollock, and W. Murphy: Metall. Mater. Trans. A, 2001, vol. 32A, pp. 1743–53.
N. Tsuno, K. Kakehi, C.M.F. Rae, and R. Hashizume: Metall. Mater. Trans. A, 2010, vol. 40A, pp. 269–72.
R.A. Hobbs, L. Zhang, C.M.F. Rae, and S. Tin: Metall. Mater. Trans. A, 2008, vol. 39A, pp. 1014–25.
L.J. Carroll, Q. Feng, J.F. Mansfield, and T.M. Pollock: Metall. Mater. Trans. A, 2006, vol. 37A, pp. 2927–38.
A. Heckl, R. Rettig, and R.F. Singer: Metall. Mater. Trans. A, 2010, vol. 41A, pp. 202–11.
R.A. Hobbs, S. Tin, and C.M.F. Rae: Metall. Mater. Trans. A, 2005, vol. 36A, pp. 2761–73.
R.A. Hobbs, S. Tin, C.M. Rae, R.W. Broomfield, and C.J. Humphreys: in Superalloys 2004, K.A. Green, T.M. Pollock, H. Harada, T.E. Howson, R.C. Reed, J.J. Schirra, and S. Walston, eds., TMS, Warrendale, PA, pp. 819–25.
L. Zheng, S.S. Li, C.B. Xiao, D.Z. Tang, and C.Q. Gu: Key Eng. Mater., 2007, vols. 353–358, pp. 507–10.
L.B. Wang, R.Z. Chen, and Y.P. Wang: Aeronautical Mater., 1989, vol. 9, pp. 1–7.
M. Ganesan, D. Dye, and P.D. Lee: Metall. Mater. Trans. A, 2005, vol. 36A, pp. 2191–2204.
E.C. Caldwell, F.J. Fela, and G.E. Fuchs: in Superalloys 2004, K.A. Green, T.M. Pollock, H. Harada, T.E. Howson, R.C. Reed, J.J. Schirra, and S. Walston, eds., TMS, Warrendale, PA, pp. 811–18.
L. Liu, T.W. Huang, M.M. Zou, W.G. Zhang, J. Zhang, and H.Z. Fu: in Superalloys 2008, R.C. Reed, K.A. Green, P. Caron, T.P. Gabb, M.G. Fahrmann, E.S. Huron, and S.A. Woodard, eds., TMS, Warrendale, PA, pp. 287–93.
B.C Wilson, E.R. Cutler, and G.E. Fuchs: Mater. Sci. Eng., A, 2008, vol. 479, pp. 356–64.
X.B. Zhao, L. Liu, W.G. Zhang, G. Liu, J. Zhang, and H.Z. Fu: Mater. Lett., 2009, vol. 30, pp. 2635–38.
P. Auburtin, T. Wang, S.L. Cockcroft, and A. Mitchell: Metall. Mater. Trans. B, 2000, vol. 31B, pp. 801–11.
T.M. Pollock, W.H. Murphy, and E.H. Goldman: in Superalloys 1992, S.D. Antolovitch, R.W. Stusrud, R.A. MacKay, D.L. Anton, T. Khan, R.D. Kissinger, and D.L. Klarstrom, eds., TMS, Warrendale, PA, pp.125–34.
W.A. Tiller, K.A. Jackson, J.W. Rutter, and B. Chalmers: Acta Metall., 1953, vol. 1, pp. 428–37.
Acknowledgments
The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (Grant Nos. 50931004, 50827102, and 50771081), National Basic Research Program of China (Grant Nos. 2010CB631202 and 2011CB610406), National High Technology Research and Development Program (Grant No. 2007AA03Z552), and the fund of the State Key Laboratory of Solidification Processing in NWPU.
Author information
Authors and Affiliations
Corresponding author
Additional information
Manuscript submitted October 20, 2010.
Rights and permissions
About this article
Cite this article
Liu, G., Liu, L., Zhao, X. et al. Effects of Re and Ru on the Solidification Characteristics of Nickel-Base Single-Crystal Superalloys. Metall Mater Trans A 42, 2733–2741 (2011). https://doi.org/10.1007/s11661-011-0673-4
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11661-011-0673-4