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Investigation on precipitation phenomena and mechanical properties of Ni–25Cr–20Co alloys aged at high temperature

Published online by Cambridge University Press:  25 September 2018

Limin Wei*
Affiliation:
Material Research Institute of Harbin Boiler Co., Ltd., Harbin 150046, China; and State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers, Harbin 150046, China
Shuo Wang
Affiliation:
Material Research Institute of Harbin Boiler Co., Ltd., Harbin 150046, China; and State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers, Harbin 150046, China
Quan Yang
Affiliation:
Material Research Institute of Harbin Boiler Co., Ltd., Harbin 150046, China; and State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers, Harbin 150046, China
Yi Cheng
Affiliation:
Material Research Institute of Harbin Boiler Co., Ltd., Harbin 150046, China; and State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers, Harbin 150046, China
Shuping Tan
Affiliation:
Material Research Institute of Harbin Boiler Co., Ltd., Harbin 150046, China; and State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers, Harbin 150046, China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

The evolution of carbides and the coarsening behavior of L12 ordered γ′ phase in Ni–25Cr–20Co alloys aged for varying time from 1000 to 5000 h at 700 and 750 °C were discussed in this paper. The mechanical properties of the alloys after aging were also discussed. Due to the changing of predominated resistance factor, a few of the γ′ precipitates’ shape changed from spherical to cuboidal after aging at 750 °C for 3000 h. The sizes and volume fraction of the γ′ precipitates were measured after aging at both temperatures. The experimentally determined temporal exponent of the γ′ coarsening indicated that the coarsening kinetics is in accordance with both models: the classical matrix diffusion LSW model and the trans-interface diffusion-controlled model. Additionally, the coarsening rate of the γ′ precipitates is dominated by the diffusion coefficients of Nb based on the classical LSW model. Furthermore, the yield strength curves of the alloys aged at 700 °C showed different trends at both test temperatures which is related to the influence of γ′ coarsening on the critical resolved shear stress.

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Copyright © Materials Research Society 2018 

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References

REFERENCES

Blum, R. and Vanstone, R.W.: Materials development for boilers and steam turbines operating at 700 DGC. In PARSONS 2003: Sixth International Charles Parsons Turbine Conference, Strang, A. ed., (Institute of Materials, Minerals, and Mining, London, U.K., 2003); p. 489.Google Scholar
Viswanathan, R., Coleman, K., and Rao, U.: Materials for ultra-supercritical coal-fired power plant boilers. Int. J. Pressure Vessels Piping 83, 778 (2006).CrossRefGoogle Scholar
Viswanathan, R., Henry, J.F., Tanzosh, J., Stanko, G., Shingledecker, J., Vitalis, B., and Purgert, R.: US program on materials technology for ultra-supercritical coal power plants. J. Mater. Eng. Perform. 14, 281 (2005).CrossRefGoogle Scholar
Zhao, S., Xie, X., Smith, G.D., and Patel, S.J.: Research and improvement on structure stability and corrosion resistance of nickel-base superalloy INCONEL alloy 740. Mater. Des. 27, 1120 (2006).CrossRefGoogle Scholar
Zhao, S., Xie, X., Smith, G.D., and Patel, S.J.: Gamma prime coarsening and age-hardening behaviors in a new nickel base superalloy. Mater. Lett. 58, 1784 (2004).CrossRefGoogle Scholar
Evans, N.D., Maziasz, P.J., Swindeman, R.W., and Smith, G.D.: Microstructure and phase stability in INCONEL alloy 740 during creep. Scr. Mater. 51, 503 (2004).CrossRefGoogle Scholar
Wang, J., Dong, J., Zhang, M., and Xie, X.: Hot working characteristics of nickel-base superalloy 740H during compression. Mater. Sci. Eng., A 566, 61 (2013).CrossRefGoogle Scholar
Yan, C., Zheng dong, L., Godfrey, A., Wei, L., and Yu qing, W.: Microstructure evolution and mechanical properties of Inconel 740H during aging at 750 °C. Mater. Sci. Eng., A 589, 153 (2014).CrossRefGoogle Scholar
Bechetti, D.H., DuPont, J.N., De Barbadillo, J.J., Baker, B.A., and Watanabe, M.: Microstructural evolution of INCONEL alloy 740H fusion welds during creep. Metall. Mater. Trans. A 46, 739 (2015).CrossRefGoogle Scholar
Sims, C.T., Stoloff, N.S., and Hagel, W.C.: Superalloys II (Wiley, New York, 1987).Google Scholar
Fahrmann, M., Hermann, W., Fahrmann, E., Boegli, A., Pollock, T.M., and Sockel, H.G.: Determination of matrix and precipitate elastic constants in (γ–γ′) Ni-base model alloys and their relevance to rafting. Mater. Sci. Eng., A 260, 212 (1999).CrossRefGoogle Scholar
Gornostyrev, Y.N., Kontsevoi, O.Y., Khromov, K.Y., Katsnelson, M.I., and Freeman, A.J.: The role of thermal expansion and composition changes in the temperature dependence of the lattice misfit in two-phase γ/γ′ superalloys. Scr. Mater. 56, 81 (2007).CrossRefGoogle Scholar
Lifshitz, I.M. and Slyozov, V.V.: The kinetics of precipitation from supersaturated solid solutions. J. Phys. Chem. Solids 19, 35 (1961).CrossRefGoogle Scholar
Wagner, C.: Theory of precipitate change by redissolution. Z. Elektrochem. 65, 581 (1961).Google Scholar
Voorhees, P.T. and Glicksman, M.E.: Solution to the multi-particle diffusion problem with applications to Ostwald ripening—I. Theory. Acta Metall. 32, 2001 (1984).CrossRefGoogle Scholar
Enomoto, Y., Tokuyama, M., and Kawasaki, K.: Finite volume fraction effects on Ostwald ripening. Acta Metall. 34, 2119 (1986).CrossRefGoogle Scholar
Muralidharan, G. and Chen, H.: Coarsening kinetics of coherent γ′ precipitates in ternary Ni-based alloys: The Ni–Al–Si system. Sci. Technol. Adv. Mater. 1, 51 (2000).CrossRefGoogle Scholar
Ardell, A.J. and Ozolins, V.: Trans-interface diffusion-controlled coarsening. Nat. Mater. 4, 309 (2005).CrossRefGoogle ScholarPubMed
Mishin, Y.: Atomistic modeling of the γ and γ′-phases of the Ni–Al system. Acta Mater. 52, 1451 (2004).CrossRefGoogle Scholar
Wimmel, J. and Ardell, A.J.: Coarsening kinetics and microstructure of Ni3Ga precipitates in aged Ni–Ga alloys. J. Alloys Compd. 205, 215 (1994).CrossRefGoogle Scholar
Kim, D. and Ardell, A.J.: Coarsening behavior of Ni3Ga precipitates in Ni–Ga alloys: Dependence of microstructure and kinetics on volume fraction. Metall. Mater. Trans. A 35, 3063 (2004).CrossRefGoogle Scholar
Ardell, A.J.: Microstructure and coarsening kinetics of Ni3Ge precipitates in aged NiGe alloys. Mater. Sci. Eng., A 183, 169 (1994).Google Scholar
Meshkinpour, M. and Ardell, A.J.: Role of volume fraction in the coarsening of Ni3Si precipitates in binary Ni–Si alloys. Mater. Sci. Eng., A 185, 153 (1994).CrossRefGoogle Scholar
Cho, J.H. and Ardell, A.J.: Coarsening of Ni3Si precipitates at volume fractions from 0.03 to 0.30. Acta Mater. 46, 5907 (1998).CrossRefGoogle Scholar
Ardell, A.J., Kim, D., and Ozolins, V.: Ripening of L12 Ni3Ti precipitates in the framework of the trans-interface diffusion-controlled theory of particle coarsening. Z. Metallkd. 97, 295 (2006).CrossRefGoogle Scholar
Ardell, A.J.: Trans-interface-diffusion-controlled coarsening of γ′ precipitates in ternary Ni–Al–Cr alloys. Acta Mater. 61, 7828 (2013).CrossRefGoogle Scholar
Ardell, A.J.: Trans-interface-diffusion-controlled coarsening in ternary alloys. Acta Mater. 61, 7749 (2013).CrossRefGoogle Scholar
Tiley, J., Viswanathan, G.B., Srinivasan, R., Banerjee, R., Dimiduk, D.M., and Fraser, H.L.: Coarsening kinetics of γ′ precipitates in the commercial nickel base superalloy René 88 DT. Acta Mater. 57, 2538 (2009).CrossRefGoogle Scholar
Meher, S., Nag, S., Tiley, J., Goel, A., and Banerjee, R.: Coarsening kinetics of γ′ precipitates in cobalt-base alloys. Acta Mater. 61, 4266 (2013).CrossRefGoogle Scholar
Adobe Photoshop CS2, version 9.0, Adobe systems incorporated, 2005.Google Scholar
Fovea ProSoftware, reindeer graphics, 2003.Google Scholar
Russ, J. and Dehoff, R.: Practical Stereology (Kluwer Academic, Plenum Publishers, Dordrecht, New York, 2000); p. 213.CrossRefGoogle Scholar
Parratt, L.G.: Probability and experimental errors in science; an elementary survey (Wiley, New York, 1961); p. 129.Google Scholar
Qiu, Y.Y.: Coarsening kinetics of γ′ precipitates in Ni–Al and Ni–Al–Mo alloys. J. Mater. Sci. 31, 4311 (1996).CrossRefGoogle Scholar
Khan, S., Singh, J.B., and Verma, A.: Precipitation behaviour of γ′ phase in alloy 693. Mater. Charact. 119, 24 (2016).CrossRefGoogle Scholar
Yoo, Y.S., Yoon, D.Y., and Henry, A.M.: The effect of elastic misfit strain on the morphological evolution of γ′-precipitates in a model Ni-base superalloy. Met. Mater. Int. 1, 47 (1995).Google Scholar
Vaithyanathan, V. and Chen, L.Q.: Coarsening of ordered intermetallic precipitates with coherency stress. Acta Mater. 50, 4061 (2002).CrossRefGoogle Scholar
Grosdidier, T., Hazotte, A., and Simon, A.: Precipitation and dissolution processes in γ/γ′ single crystal nickel-based superalloys. Mater. Sci. Eng., A 256, 183 (1998).CrossRefGoogle Scholar
Trillo, E.A. and Murr, L.E.: A TEM investigation of M23C6 carbide precipitation behaviour on varying grain boundary misorientations in 304 stainless steels. J. Mater. Sci. 33, 1263 (1998).CrossRefGoogle Scholar
Kaneko, K., Fukunaga, T., Yamada, K., Nakada, N., Kikuchi, M., Saghi, Z., Barnard Jon, S., and Midgley, P.A.: Formation of M23C6-type precipitates and chromium-depleted zones in austenite stainless steel. Scr. Mater. 65, 509 (2011).CrossRefGoogle Scholar
Qin, X.Z., Guo, J.T., Yuan, C., Hou, J.S., Zhou, L.Z., and Ye, H.Q.: Long-term thermal exposure responses of the microstructure and properties of a cast Ni-base superalloy. Mater. Sci. Eng., A 543, 121 (2012).CrossRefGoogle Scholar
Li, X., Saunders, N., and Miodownik, A.P.: The coarsening kinetics of γ′ particles in nickel-based alloys. Metall. Mater. Trans. A 33, 3367 (2002).CrossRefGoogle Scholar
Minamino, Y., Jung, S.B., Yamane, T., and Hirao, K.: Diffusion of cobalt, chromium, and titanium in Ni3Al. Metall. Mater. Trans. A 23, 2783 (1992).CrossRefGoogle Scholar
Sparke, B., James, D.W., and Leak, G.M.: Lattice diffusion in gamma-iron. J. Iron Steel Inst. 203, 152 (1965).Google Scholar
Ardell, A.J.: Non-integer temporal exponents in trans-interface diffusion-controlled coarsening. J. Mater. Sci. 51, 6133 (2016).CrossRefGoogle Scholar
Hoshino, K., Rothman, S.J., and Averback, R.S.: Tracer diffusion in pure and boron-doped Ni3Al. Acta Metall. 36, 1271 (1988).CrossRefGoogle Scholar
Shi, Y., Frohberg, G., and Wever, H.: Diffusion of 63Ni and 114mIn in the γ′-phase Ni3Al. Phys. Status Solidi A 152, 361 (1995).CrossRefGoogle Scholar
Campbell, C.E.: Assessment of the diffusion mobilites in the γ′ and B2 phases in the Ni–Al–Cr system. Acta Mater. 56, 4277 (2008).CrossRefGoogle Scholar
Semiatin, S.L., Kramb, R.C., Turner, R.E., Zhang, F., and Antony, M.M.: Analysis of the homogenization of a nickel-base superalloy. Scr. Mater. 51, 491 (2004).CrossRefGoogle Scholar
Hwang, J.Y., Banerjee, R., Tiley, J., Srinivasan, R., Viswanathan, G.B., and Fraser, H.L.: Nanoscale characterization of elemental partitioning between gamma and gamma prime phases in René 88 DT nickel-base superalloy. Metall. Mater. Trans. A 40, 24 (2009).CrossRefGoogle Scholar
Brown, L.M., Ham, R.K., Kelly, A., and Nicholson, R.B.: Strengthening methods in crystals. (Applied Science, London, U.K., 1971); p. 9.Google Scholar
Oh, J H., Choi, I C., Kim, Y J., Yoo, B G., and Jang, J i.: Variations in overall and phase hardness of a new Ni-based superalloy during isothermal aging. Mater. Sci. Eng., A 528, 6121 (2011).CrossRefGoogle Scholar
Nembach, E. and Neite, G.: Precipitation hardening of superalloys by ordered γ′-particles. Prog. Mater. Sci. 29, 177 (1985).CrossRefGoogle Scholar
Reppich, B.: Some new aspects concerning particle hardening mechanisms in γ′ precipitating Ni-base alloys—I. Theoretical concept. Acta Metall. 30, 87 (1982).CrossRefGoogle Scholar
Pretorius, T. and Nembach, E.: Strengthening of an L12-ordered γ′ intermetallic by disordered γ-particles. Part I: Computer simulations. Acta Mater. 49, 1971 (2001).CrossRefGoogle Scholar