Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-24T09:43:59.289Z Has data issue: false hasContentIssue false
  • English
  • Français

Hot deformation behavior of the high-entropy alloy CoCuFeMnNi

Published online by Cambridge University Press:  21 February 2019

Natasha Prasad ,
Nitish Bibhanshu ,
Niraj Nayan ,
Ganesh S. Avadhani  and
Satyam Suwas
Natasha Prasad
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore-560012, India
Nitish Bibhanshu
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore-560012, India
Niraj Nayan*
Affiliation:
Materials and Mechanical Entity, Vikram Sarabhai Space Centre, Thiruvananthpuram-695022, India
Ganesh S. Avadhani
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore-560012, India
Satyam Suwas
Affiliation:
Department of Materials Engineering, Indian Institute of Science, Bangalore-560012, India
*
a)Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

In the present study, hot deformation behavior of a FCC high-entropy alloy CoCuFeMnNi has been investigated to explore the stress–strain response for a wide range of temperatures and strain rates. The deformation response has been examined by plotting a processing map and examining the evolution of microstructure and texture in each of the temperature–strain rate domain. Hot compression tests were carried out in the temperature range 850–1050 °C at strain rates varying from 0.001 s−1 to 10 s−1. Stress–strain curves indicate characteristic softening behavior due to dynamic recrystallization (DRX). DRX has been observed along grain boundaries, shear bands, as well as in the interior of deformed grains. The size of dynamically recrystallized grains shows a strong dependence on deformation temperature and increases with temperature. A high degree of twin formation takes place in the DRX grains evolved inside the shear bands, and the extent of twinning decreases at high temperatures. The optimal processing window has been estimated based on strain rate sensitivity and has been validated with detailed analyses of microstructure and texture. The best region for thermo-mechanical processing has been identified as in the temperature range 850–950 °C at strain rate 10−1 s−1.

Keywords

high-entropy alloydeformation behaviorstrain rate sensitivity mapmicrostructuretexturedynamic recrystallization
Type
Invited Paper
Information
Journal of Materials Research , Volume 34 , Issue 5: Focus Issue: Nanocrystalline High Entropy Materials: Processing Challenges and Properties , 14 March 2019 , pp. 744 - 755
Copyright
Copyright © Materials Research Society 2019 

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

Miracle, D.B., Miller, J.D., Senkov, O.N., Woodward, C., Uchic, M.D., and Tiley, J.: Exploration and development of high entropy alloys for structural applications. Entropy 16, 494 (2014).CrossRefGoogle Scholar
Deng, Y., Tasan, C.C., Pradeep, K.G., Springer, H., Kostka, A., and Raabe, D.: Design of a twinning-induced plasticity high entropy alloy. Acta Mater. 94, 124 (2015).CrossRefGoogle Scholar
Schuh, B., Mendez-Martin, F., Völker, B., George, E.P., Clemens, H., Pippan, R., and Hohenwarter, A.: Mechanical properties, microstructure and thermal stability of a nanocrystalline CoCrFeMnNi high-entropy alloy after severe plastic deformation. Acta Mater. 96, 258 (2015).CrossRefGoogle Scholar
Laplanche, G., Kostka, A., Horst, O.M., Eggeler, G., and George, E.P.: Microstructure evolution and critical stress for twinning in the CrMnFeCoNi high-entropy alloy. Acta Mater. 118, 152 (2016).CrossRefGoogle Scholar
Zhang, Y., Zuo, T.T., Tang, Z., Gao, M.C., Dahmen, K.A., Liaw, P.K., and Lu, Z.P.: Microstructures and properties of high-entropy alloys. Prog. Mater. Sci. 61, 1 (2014).CrossRefGoogle Scholar
Raghavan, R., Hari Kumar, K.C., and Murty, B.S.: Analysis of phase formation in multi-component alloys. J. Alloys Compd. 544, 152 (2012).CrossRefGoogle Scholar
Ren, B., Liu, Z.X., Li, D.M., Shi, L., Cai, B., and Wang, M.X.: Effect of elemental interaction on microstructure of CuCrFeNiMn high entropy alloy system. J. Alloys Compd. 493, 148 (2010).CrossRefGoogle Scholar
Guo, S., Ng, C., Lu, J., and Liu, C.T.: Effect of valence electron concentration on stability of fcc or bcc phase in high entropy alloys. J. Appl. Phys. 109, 103505 (2011).CrossRefGoogle Scholar
Cantor, B., Chang, I.T.H., Knight, P., and Vincent, A.J.B.: Microstructural development in equiatomic multicomponent alloys. Mater. Sci. Eng., A 375–377, 213 (2004).CrossRefGoogle Scholar
Wen, L.H., Kou, H.C., Li, J.S., Chang, H., Xue, X.Y., and Zhou, L.: Effect of aging temperature on microstructure and properties of AlCoCrCuFeNi high-entropy alloy. Intermetallics 17, 266 (2009).CrossRefGoogle Scholar
Chen, Y.Y., Duval, T., Hong, U.T., Yeh, J.W., Shih, H.C., Wang, L.H., and Oung, J.C.: Corrosion properties of a novel bulk Cu0.5NiAlCoCrFeSi glassy alloy in 288 °C high-purity water. Mater. Lett. 61, 2692 (2007).CrossRefGoogle Scholar
Hsu, C.Y., Sheu, T.S., Yeh, J.W., and Chen, S.K.: Effect of iron content on wear behavior of AlCoCrFexMo0.5Ni high-entropy alloys. Wear 268, 653 (2010).CrossRefGoogle Scholar
Sathiaraj, G.D., Bhattacharjee, P.P., Tsai, C., and Yeh, J.: Effect of heavy cryo-rolling on the evolution of microstructure and texture during annealing of equiatomic CoCrFeMnNi high entropy alloy. Intermetallics 69, 1 (2016).CrossRefGoogle Scholar
Otto, F., Yang, Y., Bei, H., and George, E.P.: Relative effects of enthalpy and entropy on the phase stability of equiatomic high-entropy alloys. Acta Mater. 61, 2628 (2013).CrossRefGoogle Scholar
Ye, Y.F., Wang, Q., Lu, J., Liu, C.T., and Yang, Y.: The generalized thermodynamic rule for phase selection in multicomponent alloys. Intermetallics 59, 75 (2015).CrossRefGoogle Scholar
Zhang, Y., Zuo, T.T., Tang, Z., Gao, M.C., Dahmen, K.A., Liaw, P.K., and Lu, Z.P.: Microstructures and properties of high-entropy alloys. Prog. Mater. Sci. 61, 1–93 (2014).Google Scholar
Tsai, K.Y., Tsai, M.H., and Yeh, J.W.: Sluggish diffusion in Co–Cr–Fe–Mn–Ni high-entropy alloys. Acta Mater. 61, 4887 (2013).CrossRefGoogle Scholar
Wang, Z., Qiu, W., Yang, Y., and Liu, C.T.: Atomic-size and lattice-distortion effects in newly developed high-entropy alloys with multiple principal elements. Intermetallics 64, 63 (2015).CrossRefGoogle Scholar
Gurao, N.P. and Krishanu, Biswas, In the quest of single phase multi-component multiprincipal high entropy alloys. J. Alloys Compd. 697, 434 (2017).Google Scholar
Sonkusare, R., Divya Janani, P., Gurao, N.P., Sarkar, S., Sen, S., Pradeep, K.G., and Biswas, K.: Phase equilibria in equiatomic CoCuFeMnNi high entropy alloy. Mater. Chem. Phys. (2017).Google Scholar
Krishanu, Biswas and Gurao, N. P.: Deciphering micro-mechanisms of plastic deformation in a novel single phase Fcc-based MnFeCoNiCu high entropy alloy using crystallographic texture. Mater. Sci. Eng. 657, 224 (2016).Google Scholar
Oh, S.M. and Hong, S.I.: Microstructural evolution and mechanical properties in a Mn1.05Fe1.05CoNiCu0.9 high entropy alloy. Key Eng. Mater. 737, 44 (2017).CrossRefGoogle Scholar
Prasad, Y.V.R.K.: Processing maps: A status report. J. Mater. Eng. Perform. 12, 638 (2003).CrossRefGoogle Scholar
Zhang, P., Hu, C., Ding, C.G., Zhu, Q., and Qin, H.Y.: Plastic deformation behavior and processing maps of a Ni-based superalloy. Mater. Des. 65, 575 (2015).CrossRefGoogle Scholar
Kottada, R.S.: Hot deformation behaviour and processing map of Co–Cu–Fe–Ni–Ti eutectic high entropy alloy. Mater. Sci. Eng., A 664, 227 (2016).Google Scholar
Chaudhuri, A., Sarkar, A., Kapoor, R., Singh, R.N., Chakravartty, J.K., and Suwas, S.: Microstructural features of hot deformed Nb–1Zr–0.1C alloy. JOM 66, 1923 (2014).CrossRefGoogle Scholar
Chaudhuri, A., Sarkar, A., and Suwas, S.: Investigation of stress–strain response, microstructure and texture of hot deformed pure molybdenum. Int. J. Refract. Met. Hard Mater. 73, 168 (2018).CrossRefGoogle Scholar
Roy, S. and Suwas, S.: The influence of temperature and strain rate on the deformation response and microstructural evolution during hot compression of a titanium alloy Ti–6Al–4V–0.1B. J. Alloys Compd. 548, 110 (2013).CrossRefGoogle Scholar
Eleti, R.R., Bhattacharjee, T., Zhao, L., Bhattacharjee, P.P., and Tsuji, N.: Hot deformation behavior of CoCrFeMnNi FCC high entropy alloy. Mater. Chem. Phys. 210, 176 (2018).CrossRefGoogle Scholar
He, J.Y., Zhu, C., Zhou, D.Q., Liu, W.H., Nieh, T.G., and Lu, Z.P.: Steady state flow of the FeCoNiCrMn high entropy alloy at elevated temperatures. Intermetallics 55, 9 (2014).CrossRefGoogle Scholar
Stepanov, N.D., Shaysultanov, D.G., Yurchenko, N.Y., Zherebtsov, S.V., Ladygin, A.N., Salishchev, G.A., and Tikhonovsky, M.A.: High temperature deformation behavior and dynamic recrystallization in CoCrFeNiMn high entropy alloy. Mater. Sci. Eng., A 636, 188 (2015).CrossRefGoogle Scholar
Huang, K. and Logé, R.E.: A review of dynamic recrystallization phenomena in metallic materials. Mater. Des. 111, 548 (2016).CrossRefGoogle Scholar
Gao, W., Belyakov, A., Miura, H., and Sakai, T.: Dynamic recrystallization of copper polycrystals with different purities. Mater. Sci. Eng., A 265, 233 (1999).CrossRefGoogle Scholar
Jafari, M., Najafizadeh, A., and Rasti, J.: Dynamic recrystallization by necklace mechanism during hot deformation of 316 stainless steel. Int. J. ISSI 4, 16 (2008).Google Scholar
Sakai, T., Belyakov, A., Kaibyshev, R., Miura, H., and Jonas, J.J.: Dynamic and post-dynamic recrystallization under hot, cold and severe plastic deformation conditions. Prog. Mater. Sci. 60, 130 (2014).CrossRefGoogle Scholar
Satyam, Suwas, and Gurao, Nilesh P., Crystallographic texture in Materials, J. Indian Inst. Sci. 88.2, 151 (2008).Google Scholar
Guha, S., Sangal, S., and Basu, S.: A review of higher order strain gradient theories of plasticity: Origins, thermodynamics and connections with dislocation mechanics. Sadhana Acad. Proc. Eng. Sci. 40, 1205 (2015).Google Scholar
Abe, T. and Ono, Y.: Numerical study of grain rotation in polycrystalline metal during plastic deformation. Met. Mater. 4, 376 (1998).Google Scholar
Ghassemali, E., Sonkusare, R., Biswas, K., and Gurao, N.P.: In situ study of crack initiation and propagation in a dual phase AlCoCrFeNi high entropy alloy. J. Alloys Compd. 710, 539–546 (2017).CrossRefGoogle Scholar