Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-24T09:28:12.791Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of Co content on stacking fault energy in Ni–Co base disk superalloys

Published online by Cambridge University Press:  04 November 2011

Yong Yuan ,
Yuefeng Gu ,
Chuanyong Cui ,
Toshio Osada ,
Zhihong Zhong ,
Toshimitsu Tetsui ,
Tadaharu Yokokawa  and
Hiroshi Harada
Yong Yuan*
Affiliation:
High Temperature Materials Center, National Institute for Materials Science, Ibaraki 305-0047, Japan
Yuefeng Gu
Affiliation:
High Temperature Materials Center, National Institute for Materials Science, Ibaraki 305-0047, Japan
Chuanyong Cui
Affiliation:
High Temperature Materials Center, National Institute for Materials Science, Ibaraki 305-0047, Japan
Toshio Osada
Affiliation:
High Temperature Materials Center, National Institute for Materials Science, Ibaraki 305-0047, Japan
Zhihong Zhong
Affiliation:
High Temperature Materials Center, National Institute for Materials Science, Ibaraki 305-0047, Japan
Toshimitsu Tetsui
Affiliation:
High Temperature Materials Center, National Institute for Materials Science, Ibaraki 305-0047, Japan
Tadaharu Yokokawa
Affiliation:
High Temperature Materials Center, National Institute for Materials Science, Ibaraki 305-0047, Japan
Hiroshi Harada
Affiliation:
High Temperature Materials Center, National Institute for Materials Science, Ibaraki 305-0047, Japan
*
a)Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

The influence of Co content on stacking fault energy (SFE) of the γ matrix in four Ni–Co base superalloys, including newly developed alloys, has been studied by utilizing high-resolution transmission electron microscopy. The results indicated the SFE was not linear with Co content of the γ matrix. The lowest SFE could be attained at around 34.0 at.% Co. This effect was attributed to variation of electron holes, saturated Co content in the matrix, and the effect of Co on the partition coefficient of other alloying elements. A high density of twins was related to low SFE and could improve the mechanical properties.

Keywords

AlloyTransmission electron microscopyNi
Type
Articles
Information
Journal of Materials Research , Volume 26 , Issue 22 , 28 November 2011 , pp. 2833 - 2837
Copyright
Copyright © Materials Research Society 2011

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.)

References

REFERENCES

1.An, X.H., Han, W.Z., Huang, C.X., Zhang, P., Yang, G., Wu, S.D., and Zhang, Z.F.: High strength and utilizable ductility of bulk ultrafine-grained Cu–Al alloys. Appl. Phys. Lett. 92, 201915 (2008).CrossRefGoogle Scholar
2.Ebrahimi, F., Ahmed, Z., and Li, H.: Effect of stacking fault energy on plastic deformation of nanocrystalline face-centered cubic metals. Appl. Phys. Lett. 85, 3749 (2004).CrossRefGoogle Scholar
3.Cui, C.Y., Gu, Y.F., Harada, H., and Sato, A.: Microstructure and yield strength of UDIMET 720Li alloyed with Co-16.9 wt pct Ti. Metall. Mater. Trans. A 36, 2921 (2005).Google Scholar
4.Cui, C.Y., Gu, Y.F., Ping, D.H., Fukuda, T., and Harada, H.: Phase constituents and compressive yield stress of Ni-Co base alloys. Mater. Trans. 49, 424 (2008).CrossRefGoogle Scholar
5.Gu, Y.F., Fukuda, T., Cui, C., Harada, H., Mitsuhashi, A., Yokokawa, T., Fujioka, J., Koizumi, Y., and Kobayashi, T.: Comparison of mechanical properties of TMW alloys, new generation of cast-and-wrought superalloys for disk applications. Metall. Mater. Trans. A 40, 3047 (2009).CrossRefGoogle Scholar
6.Gu, Y.F., Cui, C., Harada, H., Fukuda, T., Ping, D., Mitsuhashi, A., Kato, K., Kobayashi, T., and Fujioka, J.: Development of Ni-Co-base alloys for high-temperature disk applications, in Proceedings of the Eleventh International Symposium on Superalloys (Pennsylvania, PA, September 14–18, 2008, The Minerals, Metals and Materials Society, USA, 2008), p. 53.Google Scholar
7.Yuan, Y., Gu, Y.F., Cui, C.Y., Osada, T., Yokokawa, T., and Harada, H.: A novel strategy for the design of advanced engineering alloys—strengthening turbine disk superalloys via twinning structures. Adv. Eng. Mater. 13, 296 (2011).CrossRefGoogle Scholar
8.Yu, Q., Shan, Z.W., Li, J., Huang, X., Xiao, L., Sun, J., and Ma, E.: Strong crystal size effect on deformation twinning. Nature 463, 335 (2010).CrossRefGoogle ScholarPubMed
9.Rath, B.B., Imam, M.A., and Pande, C.S.: Nucleation and growth of twin interfaces in fcc metals and alloys. Mater. Phys. Mech. 1, 61 (2000).Google Scholar
10.Blewitt, T.H., Coltman, P.R., and Redman, J.K.: Low-temperature deformation of copper single crystals. J. Appl. Phys. 28, 651 (1957).CrossRefGoogle Scholar
11.Gray, G.T. III: Deformation twinning in Al-4.8 wt% Mg. Acta Metall. 36, 1745 (1988).CrossRefGoogle Scholar
12.Zheng, J.G., Li, Q., Liu, Z.G., Feng, D., and Frommeyer, G.: Complex stacking fault energy of Cr-alloyed γ-TiA1. Phys. Lett. A 196, 125 (1994).CrossRefGoogle Scholar
13.Qin, L.C., Li, D.X., and Kuo, K.H.: An HRTEM study of the defects in ZnS. Philos. Mag. A 53, 543 (1986).CrossRefGoogle Scholar
14.Zhang, Z.L., Sigle, W., and Kurtz, W.: HRTEM and EELS study of screw dislocation cores in SrTiO3. Phys. Rev. B 69, 144103 (2004).CrossRefGoogle Scholar
15.Hebert, R.J., Perepezko, J.H., Rösner, H., and Wilde, G.: Dislocation formation during deformation-induced synthesis of nanocrystals in amorphous and partially crystalline amorphous Al88Y7Fe5 alloy. Scr. Mater. 54, 25 (2006).CrossRefGoogle Scholar
16.Zhou, S.J., Preston, D.L., Lomdahl, P.S., and Beazley, D.M.: Large-scale molecular dynamics simulations of dislocation intersection in Copper. Science 279, 1525 (1998).CrossRefGoogle ScholarPubMed
17.Aerts, E., Delavignette, P., Siems, R., and Amelinckx, S.: Stacking fault energy in silicon. J. Appl. Phys. 33, 3078 (1962).CrossRefGoogle Scholar
18.Feng, C. and Kang, B.S.J.: A transparent indenter measurement method for mechanical property evaluation. Exp. Mech. 46, 91 (2006).CrossRefGoogle Scholar
19.Lee, J.A.: Effects of the density of states on the stacking fault energy and hydrogen embrittlement of transition metals and alloys, in Proceedings of the 2008 International Hydrogen Conference (Grand Teton Natl. Park, WY, September 7–10, 2008), p. 678.Google Scholar
20.Nie, X.L., Wang, R.H., Ye, Y.Y., Zhou, Y.M., and Wang, D.S.: Calculations of stacking fault energy for fcc metals and their alloys based on an improved embedded-atom method. Solid State Commun. 96, 729 (1995).CrossRefGoogle Scholar
21.Xie, X.S., Chen, G.L., Mchugh, P.J., and Tien, J.K.: Including stacking fault energy into the resisting stress model for creep of particle strengthened alloys. Scr. Metall. 16, 483 (1982).Google Scholar
22.Yang, Z.A., Xiao, Y.T., and Shi, C.X.: The role of cobalt in the high temperature creep of γ′-strengthened nickel-based superalloys. Mater. Sci. Eng., A 101, 65 (1988).Google Scholar
23.Harris, I.R., Dillamore, I.L., Smallman, R.E., and Beeston, B.E.P.: The influence of d-band structure on stacking fault energy. Philos. Mag. 14, 325 (1966).CrossRefGoogle Scholar
24.Pauling, L.: The nature of the interatomic forces in metals. Phys. Rev. 54, 899 (1938).CrossRefGoogle Scholar
25.Yu, X.X. and Wang, C.Y.: The effect of alloying elements on the dislocation climbing velocity in Ni: A first-principles study. Acta Mater. 57, 5914 (2009).CrossRefGoogle Scholar
26.Barrows, R.G. and Newkirk, J.B.: A modified system for predicting σ formation. Metall. Trans. 3, 2889 (1972).CrossRefGoogle Scholar
27.Ogwu, A.A. and Davies, T.J.: Effect of the electronic state, stoichiometry and ordering energy on the ductility of transition metal-based intermetallics. J. Mater. Sci. 28, 847 (1993).CrossRefGoogle Scholar
28.Schulthess, T.C., Turchi, P.E.A., Gonis, A., and Nieh, T.G.: Systematic study of stacking fault energies of random Al-based alloys. Acta Mater. 46, 2215 (1998).CrossRefGoogle Scholar