Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-26T05:04:12.809Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of W, Re, Cr, and Mo on microstructural stability of the third generation Ni-based single crystal superalloys

Published online by Cambridge University Press:  17 October 2016

Bo Wang ,
Jun Zhang ,
Taiwen Huang ,
Haijun Su ,
Zhuoran Li ,
Lin Liu  and
Hengzhi Fu
Bo Wang
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China
Jun Zhang*
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China
Taiwen Huang
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China
Haijun Su
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China
Zhuoran Li
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China
Lin Liu
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China
Hengzhi Fu
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, China
*
a)Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

The effects of W, Re, Cr, and Mo on microstructural stability, such as the morphology of γ′ phase and the topologically close-packed (TCP) phase precipitation are systematically investigated in eleven kinds of Ni-based single crystal superalloys containing certain amounts of Co, Al, and Ta. After heat treatment, all the designed alloys show different sizes of γ′ phases with typical cuboidal morphology occupying 75% of the total volume. With increasing Re content, the size of γ′ decreases obviously, while the size of γ′ decreases slightly with increasing Cr and Mo contents. Increasing W does not affect the size of γ′. As a result of thermal exposure at 1000 °C for 1000 h, some acicular, rod-like, and blocky TCP phases are precipitated in most alloys. It is noted that Mo and Re can strongly promote the precipitation of TCP phase, but W has no obvious effect on TCP phase precipitation. In addition, transmission electron microscope analysis indicates that these TCP phases are σ phase, μ phase, and R phase.

Keywords

alloymicrostructureNi
Type
Articles
Information
Journal of Materials Research , Volume 31 , Issue 21 , 14 November 2016 , pp. 3381 - 3389
Check for updates
Copyright
Copyright © Materials Research Society 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Contributing Editor: Mathias Göken

References

REFERENCES

Reed, R.C., Tao, T., and Warnken, N.: Alloys-by-design: Application to nickel-based single crystal superalloys. Acta Mater. 57, 5898 (2009).Google Scholar
Guo, J.T.: The current situation of application and development of superalloys in the fields of energy industry. Acta Metall. Sin. 46, 513 (2010).Google Scholar
Caron, P.: High γ′ solvus new generation nickel-based superalloys for single crystal turbine blade applications. In Superalloys 2000, Pollock, T.M., Kissinger, R.D., Bowman, R.R., Green, K.A., Mclean, M., Oison, S., and Schirra, J.J. eds.; TMS: Warrendale, 2000; p. 737.Google Scholar
Hu, Z.Q., Liu, L.R., Jin, T., and Sun, X.F.: Development of the Ni-base single crystal superalloys. Aeroengine 31, 1 (2005).Google Scholar
Walston, S., Cetel, A., Mackay, R., O'Hara, K., Duhl, D., and Dreshfield, R.: Joint development of a fourth generation single crystal superalloy. In Superalloys 2004, Green, K.A., Pollock, T.M., Harada, H., Howson, T.E., Reed, R.C., Schirra, J.J., and Walston, S. eds.; TMS: Warrendale, 2004; p. 1.Google Scholar
Sato, A., Yeh, A.C., Kobayashi, T., Yokokawa, T., Harada, H., Murakumo, T., and Zhang, J.X.: Fifth generation Ni based single crystal superalloy with superior elevated temperature properties. Energy Mater. 2, 19 (2007).Google Scholar
Rae, C.M.F. and Reed, R.C.: The precipitation of topologically close-packed phases in rhenium-containing superalloys. Acta Mater. 49, 4113 (2001).Google Scholar
Karunaratne, M.S.A., Rae, C.M.F., and Reed, R.C.: On the microstructural instability of an experimental nickel-based single-crystal superalloy. Metall. Mater. Trans. A 32, 2409 (2001).Google Scholar
Acharya, M.V. and Fuchs, G.E.: The effect of long-term thermal exposures on the microstructure and properties of CMSX-10 single crystal Ni-base superalloys. Mater. Sci. Eng., A 381, 143 (2004).Google Scholar
Lavigne, O., Ramusat, C., Drawin, S., Caron, P., Boivin, D., and Pouchou, J.L.: Relationships between microstructural instabilities and mechanical behaviour in new generation nickel-based single crystal superalloys. In Superalloys 2004, Green, K.A., Pollock, T.M., Harada, H., Howson, T.E., Reed, R.C., Schirra, J.J., and Walston, S. eds.; TMS: Warrendale, 2004; p. 667.Google Scholar
Walston, W.S., O'Hara, K.S., Ross, E.W., Pollock, T.M., and Murphy, W.H.: René N6: Third generation single crystal superalloy. In Superalloys 1996, Kissinger, R.D., Deye, D.J., Anton, D.L., Cetel, A.D., Nathal, M.V., Pollock, T.M., and Woodford, D.A. eds.; TMS: Warrendale, 1996; p. 27.Google Scholar
Sato, A., Harada, H., Yen, A.C., Kawagishi, K., Kobayashi, T., Koizumi, Y., Yokokawa, T., and Zhang, J.X.: A 5th generation SC superalloy with balanced high temperature properties and processability. In Superalloys 2008, Reed, R.C., Green, K.A., Caron, P., Gabb, T.P., Fahrmann, M.G., Huron, E.S., and Woodard, S.A. eds.; TMS: Warrendale, 2008; p. 131.Google Scholar
Hobbs, R.A., Brewster, G.J., Rae, C.M.F., and Tin, S.: Evaluation of ruthenium-bearing single crystal superalloys—A design of experiments. In Superalloys 2008, Reed, R.C., Green, K.A., Caron, P., Gabb, T.P., Fahrmann, M.G., Huron, E.S., and Woodard, S.A. eds.; TMS: Warrendale, 2008; p. 171.Google Scholar
Hu, P.P., Chen, J.Y., Fen, Q., Chen, Y.H., Cao, L.M., and Li, X.H.: Effects of Mo on microstructure and stress-rupture property of Ni-based single crystal superalloys. Trans. Nonferr. Metal. Soc. 21, 332 (2011).Google Scholar
Ma, W.Y., Han, Y.F., Li, S.S., Zheng, Y.R., and Gong, S.K.: Effect of Mo content on the microstructure and stress rupture of a Ni base single crystal superalloy. Acta Metall. Sin. 42, 1191 (2006).Google Scholar
Cheng, K.Y., Jo, C.Y., Jin, T., and Hu, Z.Q.: Effect of Re on the precipitation behavior of μ phase in several single crystal superalloys. J. Alloys Compd. 536, 7 (2012).Google Scholar
Wang, W.Z., Jin, T., Liu, J.L., Sun, X.F., Guan, H.R., and Hu, Z.Q.: Role of Re and Co on microstructures and γ′ coarsening in single crystal superalloys. Mater. Sci. Eng., A 479, 148 (2008).Google Scholar
Tian, S.G., Qian, B.J., Li, T., Yu, L.L., Xie, J., and Wang, M.G.: Evolution and analysis of TCP phase in a single crystal nickel-based superalloy containing Re during aging. Rare Metals 30, 452 (2011).Google Scholar
Mackay, R.A., Gabb, T.P., Garg, A., Rogers, R.B., and Nathal, M.V.: Influence of composition on microstructural parameters of single crystal nickel-base superalloys. Mater. Charact. 70, 83 (2012).Google Scholar
Liu, L.R., Sun, L.J., and Zu, G.Q.: Effect of mass fraction of Re element on microstructure and properties of single crystal superalloy. J. Shenyang Univ. Technol. 35, 525 (2013).Google Scholar
Nathal, M.V., Maier, R.D., and Ebert, L.J.: The influence of cobalt on the microstructure of the nickel-base superalloy MAR-M247. Metall. Trans. A 13, 1775 (1982).Google Scholar
Nathal, M.V. and Ebert, L.J.: The influence of cobalt, tantalum, and tungsten on the microstructure of single crystal nickel-base superalloys. Metall. Trans. A 16, 1849 (1985).Google Scholar
Chen, J.Y., Zhao, B., Feng, Q., Cao, L.M., and Sun, Z.Q.: Effects of Ru and Cr on γ/γ′ microstructural evolution of Ni-based single crystal superalloys during heat treatment. Acta Metall. Sin. 46, 897 (2010).Google Scholar
Shi, L.P., Wang, W.B., Feng, Q., Wang, Y.L., and Chen, G.L.: Effects of high Ru and high Cr on the microstructural stability of Ni-base superalloys. J. Univ. Sci. Technol. B. 30, 1362 (2008).Google Scholar
Tan, X.P., Liu, J.L., Jin, T., Sun, X.F., and Hu, Z.Q.: Influence of Cr addition on microstructure of a 5% Re-containing single crystal nickel-based superalloy. Trans. Nonferr. Metal. Soc. 21, 1004 (2011).Google Scholar
Caron, P. and Khan, T.: Evolution of Ni-based superalloys for single crystal gas turbine blade applications. Aerosp. Sci. Technol. 3, 513 (1999).Google Scholar
Koizumi, Y., Koguchi, H., Yokokawa, T., Kobayashi, T., Osawa, M., Kimura, T., and Harada, H.: Effect of Ru additions on the TCP-phase formation and creep strength of a Ni-base single crystal superalloy. J. Jpn. Inst. Met. 68, 54 (2004).Google Scholar
Tan, X.P., Liu, J.L., Jin, T., Hu, Z.Q., Hong, H.U., Choi, B.G., Kim, I.S., Yoo, Y.S., and Jo, C.Y.: Effect of ruthenium on precipitation behavior of the topologically close-packed phase in a single-crystal Ni-based superalloy during high-temperature exposure. Metall. Mater. Trans. A 43, 3608 (2012).Google Scholar
Carroll, L.J., Feng, Q., Mansfield, J.F., and Pollock, T.M.: Elemental partitioning in Ru-containing nickel-base single crystal superalloys. Mater. Sci. Eng., A 457, 292 (2007).Google Scholar
Reed, R.C., Cox, D.C., and Rae, C.M.F.: Damage accumulation during creep deformation of a single crystal superalloy at 1150 °C. Mater. Sci. Eng., A 448, 88 (2007).Google Scholar
Popova, M.A., Kuznetsov, V.P., Lesnikov, V.P., Popov, N.A., and Konakova, I.P.: The structure and mechanical properties of single-crystal nickel alloys with Re and Ru after high-temperature holds. Mater. Sci. Eng., A 642, 304 (2015).Google Scholar
Nathal, M.V. and Ebert, L.J.: The influence of cobalt, tantalum, and tungsten on the elevated temperature mechanical properties of single crystal nickel-base superalloys. Metall. Trans. A 16, 1863 (1985).Google Scholar
Lifshitz, I.M. and Slyozov, V.V.: The kinetics of precipitation from supersaturated solid solutions. J. Phys. Chem. Solids 1–2, 35 (1961).Google Scholar
Wagner, C.: Theorie der altering von niederschlägen durch umlösen. Z. Elektrochem. 7–8, 581 (1961).Google Scholar
Karunaratne, M.S.A., Cox, D.C., Carter, P., and Reed, R.C.: Modelling of the microsegregation in CMSX-4 superalloy and its homogenization during heat treatment. In Superalloys 2000, Pollock, T.M., Kissinger, R.D., Bowman, R.R., Green, K.A., Mclean, M., Oison, S., and Schirra, J.J. eds.; TMS: Warrendale, 2000; p. 263.Google Scholar
Liu, G., Liu, L., Zhang, S.X., Yang, C.B., Zhang, J., and Fu, H.Z.: Effect of Re and Ru on microstructure and segregation of Ni-based single crystal superalloys. Acta Metall. Sin. 48, 845 (2012).Google Scholar
Tian, S.G., Wang, M.G., Li, T., Qian, B.J., and Xie, J.: Influence of TCP phase and its morphology on creep properties of single crystal nickel-based superalloys. Mater. Sci. Eng., A 527, 5444 (2010).Google Scholar
Murphy, H.J., Sims, C.T., and Beltran, A.M.: PHACOMP revisited. J. Metals 11, 47 (1968).Google Scholar
Morinaga, M., Yukawa, N., Adachi, H., and Ezaki, H.: New PHACOMP and its applications to alloy design. In Superalloys 1984, TMS: Warrendale, 1984; p. 523.Google Scholar
Chen, Z.Q., Han, Y.F., Zhong, Z.G., Wei, P.Y., and Yan, M.G.: New phase stability prediction method of nickel base single crystal superalloys. J. Aeronaut. Mater. 18, 13 (1998).Google Scholar
Wen, T., Li, J.G., Liu, L.R., Chen, L.J., and Jin, T.: Effect of long-term aging on microstructure evolution and stress rupture properties of Ni-based single crystal superalloy. Rare Met. Mater. Eng. 41, 230 (2012).Google Scholar
Qin, X.Z., Guo, J.T., Yuan, C., Yang, G.X., Zhou, L.Z., and Ye, H.Q.: μ-Phase behavior in a cast Ni- base superalloy. J. Mater. Sci. 44, 4840 (2009).Google Scholar