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Evolution behavior of superlattice phase with Pt2Mo-type structure in Ni–Cr–Mo alloy with low atomic Mo/Cr ratio

Published online by Cambridge University Press:  15 February 2016

Liang Yuan ,
Rui Hu  and
Jinshan Li
Liang Yuan
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
Rui Hu*
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
Jinshan Li
Affiliation:
State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, People's Republic of China
*
a) Address all correspondence to this author. e-mail: rhu@nwpu.edu.cn
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Abstract

The evolution behavior of Ni2(Cr, Mo) phase with Pt2Mo-type structure in the Ni–Cr–Mo alloy with a low atomic Mo/Cr ratio subjected to a long-term thermal exposure of 100–340 h at 600 °C was investigated using transmission electron microscopy and microhardness. Results demonstrate that there is a linear relationship between major axis cube (L 3) of ordered domain and thermal exposure time (t) followed by a coarsening regime described by the Lifshitz–Slyozov–Wagner model, as well as between the aspect ratio (D) of ordered domain and thermal exposure time. The volume fraction of ordered domain increases with increasing thermal exposure time, whereas the hardening of samples decreases due to growth-coarsening of ordered domain. Prolonged thermal exposure time led to the coarsening of ordered domain by rate of (3.39 ± 0.02) × 10−30 m3/s without changing their crystallography and ordering characteristics during thermal exposure. Plastic deformation before thermal exposure do not lead to decomposition of initial Ni2(Cr, Mo) phase, but both plastic deformation and thermal exposure affect their morphology and distribution.

Keywords

alloyannealingnanostructure
Type
Articles
Information
Journal of Materials Research , Volume 31 , Issue 4 , 29 February 2016 , pp. 427 - 434
Copyright
Copyright © Materials Research Society 2016 

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References

REFERENCES

Zhang, X.R., Zagidulin, D., and Shoesmith, D.W.: Characterization of film properties on the Ni–Cr–Mo alloy C-2000. Electrochim. Acta 89, 814 (2013).Google Scholar
Wang, Q.Y., Zhang, Y.F., Bai, S.L., and Liu, Z.D.: Microstructures, mechanical properties and corrosion resistance of Hastelloy C22 coating produced by laser cladding. J. Alloys Compd. 553, 253 (2013).CrossRefGoogle Scholar
Jakupi, P., Noël, J.J., and Shoesmith, D.W.: The evolution of crevice corrosion damage on the Ni–Cr–Mo–W alloy-22 determined by confocal laser scanning microscopy. Corros. Sci. 54, 260 (2012).Google Scholar
Delpech, S., Cabet, C., Slim, C., and Picard, G.S.: Molten fluorides for nuclear applications. Mater. Today 13, 34 (2010).Google Scholar
Guo, Q.M., Li, D.F., Guo, S.L., Peng, H.J., and Hu, J.: The effect of deformation temperature on the microstructure evolution of Inconel 625 superalloy. J. Nucl. Mater. 414, 440 (2011).CrossRefGoogle Scholar
Kaoumi, D. and Hrutkay, K.: Tensile deformation behavior and microstructure evolution of Ni-based superalloy 617. J. Nucl. Mater. 454, 265 (2014).CrossRefGoogle Scholar
Chen, X., Yang, Z.Q., Sokolov, M.A., Erdman, D.L., Mo, K., and Stubbins, J.F.: Effect of creep and oxidation on reduced fatigue life of Ni-based alloy 617 at 850 °C. J. Nucl. Mater. 444, 393 (2014).Google Scholar
Kumar, M. and Vasudevan, V.K.: Ordering reactions in an Ni–25Mo–8Cr alloy. Acta Mater. 44, 1591 (1996).Google Scholar
Tawancy, H.M.: Synthesis of bulk nanostructured DO22 superlattice of Ni3(Mo, Nb) with high strength, high ductility, and high thermal stability. J. Nanomater. 2012, 1 (2012).Google Scholar
Tawancy, H.M. and Aboelfotoh, M.O.: Application of long-range ordering in the synthesis of a nanoscale Ni2(Cr, Mo) superlattice with high strength and high ductility. Mater. Sci. Eng., A 500, 188 (2009).Google Scholar
Hou, Y.H., Li, Y.P., Onodera, E., Zhang, C., Koizumi, Y., and Chiba, A.: Ex-situ observation on the dissolution behaviour of Ni–16Cr–15Mo and Ni–30Co–16Cr–15Mo alloys in hydrofluoric acid. Corros. Sci. 90, 133 (2015).CrossRefGoogle Scholar
Zeng, Y.P., Kou, L.Z., and Xie, X.S.: Influence of thermal exposure on the precipitates and mechanical properties of a newly developed Ni–21Cr–17Mo alloy. Mater. Sci. Eng., A 560, 611 (2013).Google Scholar
Turchia, P.E.A., Kaufmanb, L., and Liu, Z.K.: Modeling of Ni–Cr–Mo based alloys: Part I—phase stability. CALPHAD 30, 70 (2006).CrossRefGoogle Scholar
Wang, Y., Woodward, C., Zhou, S.H., Liu, Z.K., and Chen, L.Q.: Structural stability of Ni–Mo compounds from first-principles calculations. Scr. Mater. 52, 17 (2005).Google Scholar
Verma, A., Singh, J.B., Wanderka, N., and Chakravartty, J.K.: Delineating the roles of Cr and Mo during ordering transformations in stoichiometric Ni2(Cr1−x , Mo x ) alloys. Acta Mater. 96, 366 (2015).Google Scholar
Hu, R., Cheng, G.M., Zhang, J.Q., Li, J.S., Zhang, T.B., and Fu, H.Z.: First principles investigation on the stability and elastic properties of Ni2Cr1−x M x (M = Nb, Mo, Ta, and W) superlattices. Intermetallics 33, 60 (2013).CrossRefGoogle Scholar
Pai, H.C., Sundararaman, M., Maji, B.C., Biswas, A., and Krishnan, M.: Influence of Mo addition on the solvus temperature of Ni2(Cr, Mo) phase in Ni2(Cr, Mo) alloys. J. Alloys Compd. 491, 159 (2010).CrossRefGoogle Scholar
Dymek, S., Wróbel, M., and Dollar, M.: Environmentally assisted dynamic embrittlement in a long range ordered Ni–Mo–Cr alloy. Scr. Mater. 43, 343 (2000).Google Scholar
Arya, A., Dey, G.K., Vasudevan, V.K., and Banerjee, S.: Effect of chromium addition on the ordering behaviour of Ni–Mo alloy: Experimental results vs. electronic structure calculations. Acta Mater. 50, 3301 (2002).CrossRefGoogle Scholar
Mishra, N.S. and Ranganathan, S.: Electron microscopy and diffraction of ordering in Ni–W alloys. Acta Metall. Mater. 43, 2287 (1995).Google Scholar
Kulkarni, U.D. and Dey, G.K.: Ordering and topologically close packed-phase precipitation in a Ni–25 at.% Mo–5 at.% Al alloy. Acta Mater. 52, 2711 (2004).Google Scholar
Dymek, S., Wróbel, M., Dollar, M., and Blicharski, M.: Influence of plastic deformation and prolonged ageing time on microstructure of a Haynes 242 alloy. J. Microsc. 224, 24 (2006).Google Scholar
Lu, Y.L., Pike, L.M., Brooks, C.R., Liaw, P.K., and Klarstrom, D.L.: Strengthening domains in a Ni–21Cr–17Mo alloy. Scr. Mater. 56, 121 (2007).Google Scholar
Li, X.M., Bai, J.W., Liu, P.P., Zhu, Y.M., Xie, X.S., and Zhan, Q.: Coherent Ni2(Cr, Mo) precipitates in Ni–21Cr–17Mo superalloy. J. Alloys Compd. 559, 81 (2013).Google Scholar
Turchi, P.E.A., Kaufman, L., and Liu, Z.K.: Modeling of Ni–Cr–Mo based alloys: Part II—kinetics. CALPHAD: Comput. Coupling Phase Diagrams Thermochem. 31, 237 (2007).Google Scholar
Chen, Y., Tang, B., Xu, G.L., Wang, C.W., Kou, H.C., Li, J.S., and Cui, Y.W.: Diffusion research in BCC Ti–Al–Mo ternary alloys. Metall. Mater. Trans. A 45, 1647 (2014).Google Scholar
Sundararaman, M., Mukhopadhyay, P., and Banerjee, S.: Some aspects of the precipitation of metastable intermetallic phases in Inconel 718. Metall. Trans. A 23, 2015 (1992).CrossRefGoogle Scholar
Lifshitz, I.M. and Slyozov, V.V.: The kinetics of precipitation from supersaturated solid solutions. J. Phys. Chem. Solids 19, 35 (1961).Google Scholar
Sudbrack, C.K., Yoon, K.E., Noebe, R.D., and Seidman, D.N.: Temporal evolution of the nanostructure and phase compositions in a model Ni–Al–Cr alloy. Acta Mater. 54, 3199 (2006).CrossRefGoogle Scholar
Divya, V.D., Balam, S.S.K., Ramamurty, U., and Paul, A.: Interdiffusion in the Ni–Mo system. Scr. Mater. 62, 621 (2010).CrossRefGoogle Scholar
Das, S.K. and Thomas, G.: The metastable phase Ni2Mo and the initial stages of ordering in Ni–Mo alloys. Phys. Status Solidi 21, 177 (1974).Google Scholar