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Influence of heat treatment on microstructure, mechanical behavior, and soft magnetic properties in an fcc-based Fe29Co28Ni29Cu7Ti7 high-entropy alloy

  • Zhiqiang Fu (a1), Benjamin E. MacDonald (a1), Todd C. Monson (a2), Baolong Zheng (a1), Weiping Chen (a3) and Enrique J. Lavernia (a1)...

Abstract

The influence of heat treatment (homogenization) on the microstructure, mechanical behavior, and soft magnetic properties of a face-centered cubic (fcc)-based high-entropy alloy (HEA), Fe29Co28Ni29Cu7Ti7, fabricated by casting, was investigated in detail. The as-cast Fe29Co28Ni29Cu7Ti7 HEA was composed of a primary fcc phase containing coherent dispersed L12 nanoprecipitates and trace amounts of a needle-like phase. The tensile yield strength (σ0.2), ultimate strength, and total elongation of the as-cast alloy are 917 MPa, 1060 MPa, and 1.8%, respectively. Following homogenization, the alloy having a single fcc phase shows a decrease of ∼ 55% in yield strength and a decrease of ∼ 36% in ultimate strength; however, the total elongation is increased from 1.8 to 52%. Saturation magnetization (Msat) is decreased from 111.54 to 110.34 Am2/kg, by contrast, coercivity (Hc) is increased from 266.65 to 966.89 A/m. The dissolution of precipitates and grain growth are mainly responsible for the changes in magnetic properties and mechanical behavior.

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a)Address all correspondence to this author. e-mail: lavernia@uci.edu

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This author was an editor of this journal during the review and decision stage. For the JMR policy on review and publication of manuscripts authored by editors, please refer to http://www.mrs.org/editor-manuscripts/.

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1.Yeh, J.W., Chen, S.K., Lin, S.J., Gan, J.Y., Chin, T.S., Shun, T.T., Tsau, C.H., and Chang, S.Y.: Nanostructured high-entropy alloys with multiple principal elements: Novel alloy design concepts and outcomes. Adv. Eng. Mater. 6, 299 (2004).
2.Miracle, D.B. and Senkov, O.N.: A critical review of high entropy alloys and related concepts. Acta Mater. 122, 448 (2017).
3.Choudhuri, D., Gwalani, B., Gorsse, S., Mikler, C.V., Ramanujan, R.V., Gibson, M.A., and Banerjee, R.: Change in the primary solidification phase from fcc to bcc-based B2 in high entropy or complex concentrated alloys. Scr. Mater. 127, 186 (2017).
4.Yuan, Y., Wu, Y., Tong, X., Zhang, H., Wang, H., Liu, X.J., Ma, L., Suo, H.L., and Lu, Z.P.: Rare-earth high-entropy alloys with giant magnetocaloric effect. Acta Mater. 125, 481 (2017).
5.Zou, Y., Maiti, S., Steurer, W., and Spolenak, R.: Size-dependent plasticity in an Nb25Mo25Ta25W25 refractory high-entropy alloy. Acta Mater. 65, 85 (2014).
6.Chuang, M., Tsai, M., Wang, W., Lin, S., and Yeh, J.: Microstructure and wear behavior of AlxCo1.5CrFeNi1.5Tiy high-entropy alloys. Acta Mater. 59, 6308 (2011).
7.Lee, D.H., Seok, M.Y., Zhao, Y., Choi, I.C., He, J., Lu, Z., Suh, J.Y., Ramamurty, U., Kawasaki, M., Langdon, T.G., and Jang, J-i.: Spherical nanoindentation creep behavior of nanocrystalline and coarse-grained CoCrFeMnNi high-entropy alloys. Acta Mater. 109, 314 (2016).
8.Zhang, Y., Zuo, T., Cheng, Y., and Liaw, P.K.: High-entropy alloys with high saturation magnetization, electrical resistivity, and malleability. Sci. Rep. 3, 1455 (2013).
9.Gómez-Esparza, C.D., Baldenebro-López, F.J., Santillán-Rodríguez, C.R., Estrada-Guel, I., Matutes-Aquino, J.A., Herrera-Ramírez, J.M., and Martínez-Sánchez, R.: Microstructural and magnetic behavior of an equiatomic NiCoAlFe alloy prepared by mechanical alloying. J. Alloys Compd. 615, S317 (2014).
10.Li, P., Wang, A., and Liu, C.T.: A ductile high entropy alloy with attractive magnetic properties. J. Alloys Compd. 694, 55 (2017).
11.Zuo, T., Gao, M.C., Ouyang, L., Yang, X., Cheng, Y., Feng, R., Chen, S., Liaw, P.K., Hawk, J.A., and Zhang, Y.: Tailoring magnetic behavior of CoFeMnNiX (X = Al, Cr, Ga, and Sn) high entropy alloys by metal doping. Acta Mater. 130, 10 (2017).
12.Shang, C., Axinte, E., Ge, W., Zhang, Z., and Wang, Y.: High-entropy alloy coatings with excellent mechanical, corrosion resistance and magnetic properties prepared by mechanical alloying and hot pressing sintering. Surf. Interfaces. 9, 36 (2017).
13.Borkar, T., Gwalani, B., Choudhuri, D., Mikler, C.V., Yannetta, C.J., Chen, X., Ramanujan, R.V., Styles, M.J., Gibson, M.A., and Banerjee, R.: A combinatorial assessment of AlxCrCuFeNi2 (0 < x < 1.5) complex concentrated alloys: Microstructure, microhardness, and magnetic properties. Acta Mater. 116, 63 (2016).
14.Nadutov, V.M., Makarenko, S.Y., and Svystunov, Y.O.: Effect of Al content on magnetic properties and thermal expansion of as-cast high-entropy alloys AlxFeCoNiCuCr. Metallofiz. Noveishie Tekhnol. 37, 987 (2015).
15.Zuo, T.T., Ren, S.B., Liaw, P.K., and Zhang, Y.: Processing effects on the magnetic and mechanical properties of FeCoNiAl0.2Si0.2 high entropy alloy. Int. J. Miner. Metall. Mater. 20, 549 (2013).
16.Lin, P.C., Cheng, C.Y., Yeh, J.W., and Chin, T.S.: Soft magnetic properties of high-entropy Fe–Co–Ni–Cr–Al–Si thin films. Entropy. 18, 1 (2016).
17.Yu, P.F., Zhang, L.J., Cheng, H., Zhang, H., Ma, M.Z., Li, Y.C., Li, G., Liaw, P.K., and Liu, R.P.: The high-entropy alloys with high hardness and soft magnetic property prepared by mechanical alloying and high-pressure sintering. Intermetallics. 70, 82 (2016).
18.Zuo, T., Yang, X., Liaw, P.K., and Zhang, Y.: Influence of bridgman solidification on microstructures and magnetic behaviors of a non-equiatomic FeCoNiAlSi high-entropy alloy. Intermetallics 67, 171 (2015).
19.Singh, S., Wanderka, N., Kiefer, K., Siemensmeyer, K., and Banhart, J.: Effect of decomposition of the Cr–Fe–Co rich phase of AlCoCrCuFeNi high entropy alloy on magnetic properties. Ultramicroscopy 111, 619 (2011).
20.Guo, S. and Liu, C.T.: Phase stability in high entropy alloys: Formation of solid-solution phase or amorphous phase. Prog. Nat. Sci.: Mater. Int. 21, 433 (2011).
21.Yang, X. and Zhang, Y.: Prediction of high-entropy stabilized solid-solution in multi-component alloys. Mater. Chem. Phys. 132, 233 (2012).
22.Fu, Z., Chen, W., Wen, H., Zhang, D., Chen, Z., Zheng, B., Zhou, Y., and Lavernia, E.J.: Microstructure and strengthening mechanisms in an fcc structured single-phase nanocrystalline Co25Ni25Fe25Al7.5Cu17.5 high-entropy alloy. Acta Mater. 107, 59 (2016).
23.Fu, Z., MacDonald, B.E., Zhang, D., Wu, B., Chen, W., Ivanisenko, J., Hahn, H., and Lavernia, E.J.: Fcc nanostructured TiFeCoNi alloy with multi-scale grains and enhanced plasticity. Scr. Mater. 143, 108 (2018).
24.Kim, I.S., Choi, B.G., Hong, H.U., Do, J., and Jo, C.Y.: Influence of thermal exposure on the microstructural evolution and mechanical properties of a wrought Ni-base superalloy. Mater. Sci. Eng. A. 593, 55 (2014).
25.Xu, L., Cui, C., and Sun, X.: The effects of Co and Ti additions on microstructures and compressive strength of Udimet710. Mater. Sci. Eng. A. 528, 7851 (2011).
26.Takeuchi, A. and Inoue, A.: Classification of bulk metallic glasses by atomic size difference, heat of mixing and period of constituent elements and its application to characterization of the main alloying element. Mater. Trans. 46, 2817 (2005).
27.Liu, W.H., Lu, Z.P., He, J.Y., Luan, J.H., Wang, Z.J., Liu, B., Liu, Y., Chen, M.W., and Liu, C.T.: Ductile CoCrFeNiMox high entropy alloys strengthened by hard intermetallic phases. Acta Mater. 116, 332 (2016).
28.He, J.Y., Liu, W.H., Wang, H., Wu, Y., Liu, X.J., Nieh, T.G., and Lu, Z.P.: Effects of Al addition on structural evolution and tensile properties of the FeCoNiCrMn high-entropy alloy system. Acta Mater. 62, 105 (2014).
29.Wei, R., Sun, H., Chen, C., Han, Z., and Li, F.: Effect of cooling rate on the phase structure and magnetic properties of Fe26.7Co28.5Ni28.5Si4.6B8.7P3 high entropy alloy. J. Magn. Magn. Mater. 435, 184 (2017).
30.Yu, R.H., Basu, S., Li, Y.F., Zhang, Y., Hadjipanayis, G.C., Lorenz, B.E., and Xiao, Q.: Microstructural effect of magnetic properties of FeCo-based soft magnetic alloys. J. Magn. Soc. Jpn. 23, 397 (1999).
31.Hou, C., Shan, Y., Wu, H., and Bi, X.: Effect of a small addition of Cr on soft magnetic and mechanical properties of Fe–49Co–2V alloy. J. Alloys Compd. 556, 51 (2013).

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Influence of heat treatment on microstructure, mechanical behavior, and soft magnetic properties in an fcc-based Fe29Co28Ni29Cu7Ti7 high-entropy alloy

  • Zhiqiang Fu (a1), Benjamin E. MacDonald (a1), Todd C. Monson (a2), Baolong Zheng (a1), Weiping Chen (a3) and Enrique J. Lavernia (a1)...

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