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Effects of microstructure and γ′ distribution on the hot deformation behavior for a powder metallurgy superalloy FGH96

Published online by Cambridge University Press:  27 November 2014

Chi Zhang ,
Liwen Zhang ,
Mengfei Li ,
Wenfei Shen  and
Sendong Gu
Chi Zhang
Affiliation:
School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116085, China; and Key Laboratory for Metallurgical Equipment and Control of Education Ministry, WUHAN University of Science and Technology, Wuhan, 430081, Hubei, China
Liwen Zhang*
Affiliation:
School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116085, China
Mengfei Li
Affiliation:
School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116085, China
Wenfei Shen
Affiliation:
School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116085, China
Sendong Gu
Affiliation:
School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116085, China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Aiming to clarify the effects of initial states on hot deformation behavior of a powder metallurgy nickel-based superalloy FGH96, specimens in hot isostatic pressed (HIPed) and solution states were isothermally compressed in the temperature range of 1000–1150 °C and the strain rate range of 0.001–1.0 s−1. It revealed that the flow behavior of FGH96 was dependent on the initial states, in which the deformation resistance was higher in the solution state than that in the HIPed state at evaluated temperatures, and the differences became less when the temperature was higher than the γ′ dissolution temperature. The calculated hot activation energy using peak stresses are 590 and 1285 kJ mol−1 for HIPed and solution specimens. Comparison with HIPed specimen, the efficiency of power dissipation (η) in solution specimen is less, and the optimum workability regime moves to higher temperatures. Cracking and in-grain shear bands were observed in the specimens when compressed in flow instability areas.

Keywords

powder metallurgyhot isostatic pressing (HIP)second phasesmicrostructurehot deformation behaviorprocessing map
Type
Articles
Information
Journal of Materials Research , Volume 29 , Issue 23 , 14 December 2014 , pp. 2799 - 2808
Copyright
Copyright © Materials Research Society 2014 

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References

REFERENCES

Viswanathan, G.B., Sarosi, P.M., Henry, M.F., Whitis, D.D., Milligan, W.W., and Mills, M.J.: Investigation of creep deformation mechanisms at intermediate temperatures in Rene 88 DT. Acta Mater. 53(10), 3041 (2005).Google Scholar
Zhang, M-J., Li, F-G., Wang, S-Y., and Liu, C-Y.: Characterization of hot deformation behavior of a P/M nickel-base superalloy using processing map and activation energy. Mater. Sci. Eng., A 527(24–25), 6771 (2010).Google Scholar
Pan, Q-L., Li, B., Wang, Y., Zhang, Y-W., and Yin, Z-M.: Characterization of hot deformation behavior of Ni-base superalloy Rene'41 using processing map. Mater. Sci. Eng., A 585, 371 (2013).Google Scholar
Ning, Y-Q., Yao, Z-K., Zheng, Y., Guo, H-Z., and Fu, M-W.: Flow behavior and hot workability of FGH4096 superalloys with different initial microstructures by using advanced processing maps. Mater. Sci. Eng., A 531, 91 (2012).Google Scholar
Ning, Y-Q., Yao, Z-K., Fu, M-W., and Guo, H-Z.: Recrystallization of the hot isostatic pressed nickel-base superalloy FGH4096: I. Microstructure and mechanism. Mater. Sci. Eng., A 528(28), 8065 (2011).CrossRefGoogle Scholar
Ning, Y-Q., Yao, Z-K., Lei, Y-Y., Guo, H-Z., and Fu, M-W.: Hot deformation behavior of the post-cogging FGH4096 superalloy with fine equiaxed microstructure. Mater. Charact. 62(9), 887 (2011).CrossRefGoogle Scholar
Wu, K., Liu, G-Q., Hu, B-F., Wang, C-Y., Zhang, Y-W., Tao, Y., and Liu, J-T.: Effect of processing parameters on hot compressive deformation behavior of a new Ni–Cr–Co based P/M superalloy. Mater. Sci. Eng., A 528(13–14), 4620 (2011).Google Scholar
Wu, K., Liu, G., Hu, B., Li, F., Zhang, Y., Tao, Y., and Liu, J.: Characterization of hot deformation behavior of a new Ni–Cr–Co based P/M superalloy. Mater. Charact. 61(3), 330 (2010).Google Scholar
Kang, F-W., Zhang, G-Q., Sun, J-F., Li, Z., and Shen, J.: Hot deformation behavior of a spray formed superalloy. J. Mater. Process. Technol. 204(1–3), 147 (2008).Google Scholar
Zhang, H-B., Zhang, K-F., Lu, Z., Zhao, C-H., and Yang, X-L.: Hot deformation behavior and processing map of a γ′-hardened nickel-based superalloy. Mater. Sci. Eng., A 604, 1 (2014).Google Scholar
Wen, D-X., Lin, Y-C., Li, H-B., Chen, X-M., Deng, J., and Li, L-T.: Hot deformation behavior and processing map of a typical Ni-based superalloy. Mater. Sci. Eng., A 591, 183 (2014).Google Scholar
Li, D-F., Guo, Q-M., Guo, S-L., Peng, H-J., and Wu, Z-G.: The microstructure evolution and nucleation mechanisms of dynamic recrystallization in hot-deformed Inconel 625 superalloy. Mater. Des. 32(2), 696 (2011).Google Scholar
Qiu, C-L., Attallah, M-M., Wu, X-H., and Andrews, P.: Influence of hot isostatic pressing temperature on microstructure and tensile properties of a nickel-based superalloy powder. Mater. Sci. Eng., A 564, 176 (2013).Google Scholar
Chen, Y., Slater, T.J.A., Lewis, E., Francis, E.M., Burke, M.G., Preuss, M., and Haigh, S.J.: Measurement of size-dependent composition variations for gamma prime (γ′) precipitates in an advanced nickel-based superalloy. Ultramicroscopy 144, 1 (2014).Google Scholar
Lin, Y-C., Wen, D-X., Deng, J., Liu, G., and Chen, J.: Constitutive models for high-temperature flow behaviors of a Ni-based superalloy. Mater. Des. 59, 115 (2014).Google Scholar
Wang, Y., Pan, Q-L., Song, Y-F., Li, C., and Li, Z-F.: Hot deformation and processing maps of X-750 nickel-based superalloy. Mater. Des. 51, 154 (2013).Google Scholar
Thamburaj, R., Wallace, W., Chari, Y.N., and Prakash, T.L.: Influence of processing variables on prior particle boundary precipitation and mechanical behaviour in PM superalloy APK1. Powder Metall. 27(3), 169 (1984).Google Scholar
Marquez, C., L'Esperance, G., and Koul, A.K.: Prior particle boundary precipitation in Ni-base superalloys. Int. J. Powder Metall. 25(4), 301 (1989).Google Scholar
Menzies, R.G., Bricknell, R.H., and Craven, A.J.: STEM microanalysis of precipitates and their nuclei in a nickel-base superalloy. Philos. Mag. A 41(4), 493 (1980).Google Scholar
Rao, G-A., Srinivas, M., and Sarma, D.S.: Influence of modified processing on structure and properties of hot isostatically pressed superalloy Inconel 718. Mater. Sci. Eng., A 418(1–2), 282 (2006).Google Scholar
Whitmore, L., Ahmadi, M.R., Stockinger, M., Povoden-Karadeniz, E., Kozeschnik, E., and Leitner, H.: Microstructural investigation of thermally aged nickel-based superalloy 718Plus. Mater. Sci. Eng., A 594, 253 (2014).Google Scholar
Qiu, C-L. and Andrews, P.: On the formation of irregular-shaped gamma prime and serrated grain boundaries in a nickel-based superalloy during continuous cooling. Mater. Charact. 76, 28 (2013).Google Scholar
Wu, K., Liu, G., Hu, B., Zhang, Y., Tao, Y., and Liu, J.: Effect of solution cooling rate and post treatment on γ′ precipitation and microhardness of a novel nickel-based P/M superalloy FGH98. Rare Met. Mater. Eng. 41(7), 1267 (2012).Google Scholar
Ning, Y-Q., Kun, Y-Z., Fu, M-W., and Guo, H-Z.: Dynamic recrystallization of the hot isostatically pressed P/M superalloy FGH4096 in hot working process. Mater. Sci. Eng., A 527(26), 6968 (2010).Google Scholar
Singh, A.R.P., Nag, S., Chattopadhyay, S., Ren, Y., Tiley, J., Viswanathan, G.B., Fraser, H.L., and Banerjee, R.: Mechanisms related to different generations of γ′ precipitation during continuous cooling of a nickel base superalloy. Acta Mater. 61(1), 280 (2013).Google Scholar
Wang, Y., Shao, W-Z., Zhen, L., and Zhang, B-Y.: Hot deformation behavior of delta-processed superalloy 718. Mater. Sci. Eng., A 528(7–8), 3218 (2011).Google Scholar
Ning, Y-Q., Fu, M-W., and Chen, X.: Hot deformation behavior of GH4169 superalloy associated with stick phase dissolution during isothermal compression process. Mater. Sci. Eng., A 540, 164 (2012).Google Scholar
Hu, B-F., Chen, H-M., Jin, K-S., and Li, H-Y.: Static recrystallization mechanism of FGH95 superalloy. Trans. Nonferrous Met. Soc. 14(6), 901 (2004).Google Scholar
Zhang, C., Liu, Z., and Wang, G.: Effects of hot rolled shear bands on formability and surface ridging of an ultra purified 21%Cr ferritic stainless steel. J. Mater. Process. Technol. 211(6), 1051 (2011).CrossRefGoogle Scholar