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Microstructure and oxidation behavior of the CrMoNbTaV high-entropy alloy

Published online by Cambridge University Press:  19 October 2018

Yifeng Xiao ,
Wenhui Kuang ,
Yanfei Xu ,
Liang Wu ,
Wenjuan Gong ,
Jinwen Qian ,
Qiankun Zhang  and
Yuehui He
Yifeng Xiao
Affiliation:
School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, People’s Republic of China; Key Laboratory of Welding Robot and Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, People’s Republic of China; and Engineering Research Center of Complex Tracks Processing Technology and Equipment of Ministry of Education, Xiangtan University, Xiangtan 411105, People’s Republic of China
Wenhui Kuang
Affiliation:
School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, People’s Republic of China; Key Laboratory of Welding Robot and Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, People’s Republic of China; and Engineering Research Center of Complex Tracks Processing Technology and Equipment of Ministry of Education, Xiangtan University, Xiangtan 411105, People’s Republic of China
Yanfei Xu*
Affiliation:
School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, People’s Republic of China; Key Laboratory of Welding Robot and Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, People’s Republic of China; and Engineering Research Center of Complex Tracks Processing Technology and Equipment of Ministry of Education, Xiangtan University, Xiangtan 411105, People’s Republic of China
Liang Wu
Affiliation:
School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, People’s Republic of China; Key Laboratory of Welding Robot and Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, People’s Republic of China; and Engineering Research Center of Complex Tracks Processing Technology and Equipment of Ministry of Education, Xiangtan University, Xiangtan 411105, People’s Republic of China
Wenjuan Gong
Affiliation:
School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, People’s Republic of China; Key Laboratory of Welding Robot and Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, People’s Republic of China; and Engineering Research Center of Complex Tracks Processing Technology and Equipment of Ministry of Education, Xiangtan University, Xiangtan 411105, People’s Republic of China
Jinwen Qian
Affiliation:
School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, People’s Republic of China; Key Laboratory of Welding Robot and Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, People’s Republic of China; and Engineering Research Center of Complex Tracks Processing Technology and Equipment of Ministry of Education, Xiangtan University, Xiangtan 411105, People’s Republic of China
Qiankun Zhang
Affiliation:
School of Mechanical Engineering, Xiangtan University, Xiangtan 411105, People’s Republic of China; Key Laboratory of Welding Robot and Application Technology of Hunan Province, Xiangtan University, Xiangtan 411105, People’s Republic of China; and Engineering Research Center of Complex Tracks Processing Technology and Equipment of Ministry of Education, Xiangtan University, Xiangtan 411105, People’s Republic of China
Yuehui He
Affiliation:
State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, People’s Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

The microstructure and oxidation behavior at high temperatures ranging from 900 °C to 1100 °C of equiatomic CrMoNbTaV high-entropy alloy produced by vacuum arc melting were investigated. The phase component, microstructure, and microhardness of the alloy were examined by using X-ray diffraction, scanning electron microscopy equipped with an energy-dispersive X-ray spectroscope, and Vickers hardness tests, respectively. The as-cast alloy consists of a single body-centered cubic (BCC) refractory metal solid solution due to the high mixing entropy effect and exhibits a dendritic microstructure. The alloy has a very high microhardness value of 923 HV due to the strong solid solution strengthening effect. The average microhardness in interdendrites (950 HV) was higher than that in dendrites (896 HV) because of composition segregation. The oxidation kinetic curves of the alloy after exposure to air at 900 and 1000 °C follow the pseudo-parabolic rate law, while the mass gain increases first and then decreases at 1100 °C. The thickness of the oxide layer increases with the increasing of oxidation time. The long rod-shaped oxidation products are composed of Nb2O5, NbO2, CrTaO4, CrNbO4, Ta9VO25, Nb9VO25, and TaO after oxidation at 900 and 1000 °C for 25 h. The oxides of CrTaO4 and CrNbO4 disappear as the oxidation temperature elevated to 1100 °C.

Keywords

high-entropy alloyrefractorymicrostructureoxidation behavior
Type
Article
Information
Journal of Materials Research , Volume 34 , Issue 2 , 28 January 2019 , pp. 301 - 308
Copyright
Copyright © Materials Research Society 2018 

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References

REFERENCES

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).CrossRefGoogle Scholar
Yeh, J.W., Lin, S.J., Chin, T.S., Gan, J.Y., Chen, S.K., Shun, T.T., Tsau, C.H., and Chou, S.Y.: Formation of simple crystal structures in Cu–Co–Ni–Cr–Al–Fe–Ti–V alloys with multiprincipal metallic elements. Metall. Mater. Trans. A 35, 2533 (2004).CrossRefGoogle Scholar
Tong, C.J., Chen, Y.L., Yeh, J.W., Lin, S.J., Chen, S.K., Shun, T.T., Tsau, C.H., and Chang, S.Y.: Microstructure characterization of AlxCoCrCuFeNi high-entropy alloy system with multiprincipal elements. Metall. Mater. Trans. A 36, 881 (2005).CrossRefGoogle Scholar
Yeh, J.W., Chang, S.Y., Hong, Y.D., Lee, P.H., and Lin, S.J.: Anomalous decrease in X-ray diffraction intensities of Cu–Ni–Al–Co–Cr–Fe–Si alloy systems with multi-principal elements. Mater. Chem. Phys. 103, 41 (2007).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
Wang, Z., Gao, M.C., Ma, S.G., Yang, H.J., Wang, Z.H., Ziomek-Moroz, M., and Qiao, J.W.: Effect of cold rolling on the microstructure and mechanical properties of Al0.25CoCrFe1.25Ni1.25 high-entropy alloy. Mater. Sci. Eng., A 645, 163 (2015).CrossRefGoogle Scholar
Juan, C.C., Tsai, M.H., Tsai, C.W., Lin, C.M., Wang, W.R., Yang, C.C., Chen, S.K., Lin, S.J., and Yeh, J.W.: Enhanced mechanical properties of HfMoTaTiZr and HfMoNbTaTiZr refractory high-entropy alloys. Intermetallics 62, 76 (2015).CrossRefGoogle Scholar
Ma, S.G., Qiao, J.W., Wang, Z.H., Yang, H.J., and Zhang, Y.: Microstructural features and tensile behaviors of the Al0.5CrCuFeNi2 high-entropy alloys by cold rolling and subsequent annealing. Mater. Des. 88, 1057 (2015).CrossRefGoogle Scholar
Gorr, B., Mueller, F., Christ, H-J., Mueller, T., Chen, H., Kauffmann, A., and Heilmaier, M.: High temperature oxidation behavior of an equimolar refractory metal-based alloy 20Nb–20Mo–20Cr–20Ti–20Al with and without Si addition. J. Alloys Compd. 688, 468 (2016).CrossRefGoogle Scholar
Xiao, D.H., Zhou, P.F., Wu, W.Q., Diao, H.Y., Gao, M.C., Song, M., and Liaw, P.K.: Microstructure, mechanical and corrosion behaviors of AlCoCuFeNi–(Cr,Ti) high entropy alloys. Mater. Des. 116, 438 (2017).CrossRefGoogle Scholar
Zhang, W., Liaw, P.K., and Zhang, Y.: Science and technology in high-entropy alloys. Sci. China Mater. 61, 2 (2018).CrossRefGoogle Scholar
Tsai, C.W., Chen, Y.L., Tsai, M.H., Yeh, J.W., Shun, T.T., and Lee, P.H.: Deformation and annealing behaviors of high-entropy alloy Al0.5CoCrCuFeNi. J. Alloys Compd. 486, 427 (2009).CrossRefGoogle Scholar
Hemphill, M.A., Yuan, T., Wang, G.Y., Yeh, J.W., Tsai, C.W., Chuang, A., and Liaw, P.: Fatigue behavior of Al0.5CoCrCuFeNi high entropy alloys. Acta Mater. 60, 5723 (2012).CrossRefGoogle Scholar
Chen, X., Sui, Y.W., Qi, J.Q., He, Y.Z., Wei, F.X., Meng, Q.K., and Sun, Z.: Microstructure of Al1.3CrFeNi eutectic high entropy alloy and oxidation behavior at 1000 °C. J. Mater. Res. 32, 2109 (2017).CrossRefGoogle Scholar
Senkov, O.N., Wilks, G.B., Miracle, D.B., Chuang, C.P., and Liaw, P.K.: Refractory high-entropy alloys. Intermetallics 18, 1758 (2010).CrossRefGoogle Scholar
Senkov, O.N., Scott, J.M., Senkova, S.V., Miracle, D.B., and Woodward, C.F.: Microstructure and room temperature properties of a high-entropy TaNbHfZrTi alloy. J. Alloys Compd. 509, 6043 (2011).CrossRefGoogle Scholar
Poulia, A., Georgatis, E., Lekatou, A., and Karantzalis, A.E.: Microstructure and wear behavior of a refractory high entropy alloy. Int. J. Refract. Met. Hard Mater. 57, 60 (2016).CrossRefGoogle Scholar
Senkov, O.N., Senkova, S.V., Woodward, C., and Miracle, D.B.: Low-density, refractory multi-principal element alloys of the Cr–Nb–Ti–V–Zr system: Microstructure and phase analysis. Acta Mater. 61, 1545 (2013).CrossRefGoogle Scholar
Poletti, M.G., Branz, S., Fiore, G., Szost, B.A., Crichton, W.A., and Battezzati, L.: Equilibrium high entropy phases in X–NbTaTiZr (X = Al, V, Cr, and Sn) multiprincipal component alloys. J. Alloys Compd. 655, 138 (2016).CrossRefGoogle Scholar
Wu, W.Q., Ni, S., Liu, Y., and Song, M.: Effects of cold rolling and subsequent annealing on the microstructure of a HfNbTaTiZr high-entropy alloy. J. Mater. Res. 31, 3815 (2016).CrossRefGoogle Scholar
Zhang, Y., Liu, Y., Li, Y.X., Chen, X., and Zhang, H.W.: Microstructure and mechanical properties of a refractory HfNbTiVSi0.5, high-entropy alloy composite. Mater. Lett. 174, 82 (2016).CrossRefGoogle Scholar
Liu, C.M., Wang, H.M., Zhang, S.Q., Tang, H.B., and Zhang, A.L.: Microstructure and oxidation behavior of new refractory high entropy alloys. J. Alloys Compd. 583, 162 (2014).CrossRefGoogle Scholar
Couzinié, J-P., Lilensten, L., Champion, Y., Dirras, G., Perrière, L., and Guillot, I.: On the room temperature deformation mechanisms of a TiZrHfNbTa refractory high-entropy alloy. Mater. Sci. Eng., A 645, 255 (2015).CrossRefGoogle Scholar
Guo, N.N., Wang, L., Luo, L.S., Li, X.Z., Chen, R.R., Su, Y.Q., Guo, J.J., and Fu, H.Z.: Microstructure and mechanical properties of in situ MC-carbide particulates-reinforced refractory high-entropy Mo0.5NbHf0.5ZrTi matrix alloy composite. Intermetallics 69, 74 (2016).CrossRefGoogle Scholar
Guo, N.N., Wang, L., Luo, L.S., Li, X.Z., Chen, R.R., Su, Y.Q., Guo, J.J., and Fu, H.Z.: Microstructure and mechanical properties of refractory MoNbHfZrTi high-entropy alloy. Mater. Des. 81, 87 (2015).CrossRefGoogle Scholar
Guo, S., Hu, Q., Ng, C., and Liu, C.T.: More than entropy in high-entropy alloys: Forming solid solutions or amorphous phase. Intermetallics 41, 96 (2013).CrossRefGoogle Scholar
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).CrossRefGoogle Scholar
http://www.webelements.com/.Google Scholar
Singh, A.K. and Subramaniam, A.: On the formation of disordered solid solutions in multi-component alloys. J. Alloys Compd. 587, 113 (2014).CrossRefGoogle Scholar
Sun, S.P., Yi, D.Q., Liu, H.Q., Zang, B., and Jiang, Y.: Calculation of glass forming ranges in Al–Ni–RE (Ce, La, Y) ternary alloys and their sub-binaries based on Miedema’s model. J. Alloys Compd. 506, 377 (2010).CrossRefGoogle Scholar
Gorr, B., Azim a, M., Christ, H-J., Mueller, T., Schliephake, D., and Heilmaier, M.: Phase equilibria, microstructure, and high temperature oxidation resistance of novel refractory high-entropy alloys. J. Alloys Compd. 624, 270 (2015).CrossRefGoogle Scholar
Dong, Y., Jiang, L., Jiang, H., Lu, Y.P., Wang, T.M., and Li, T.J.: Effects of annealing treatment on microstructure and hardness of bulk AlCrFeNiMo0.2 eutectic high-entropy alloy. Mater. Des. 82, 91 (2015).CrossRefGoogle Scholar
Senkov, O.N. and Woodward, C.F.: Microstructure and properties of a refractory NbCrMo0.5Ta0.5TiZr alloy. Mater. Sci. Eng., A 529, 311 (2011).CrossRefGoogle Scholar
Liu, J. and Xue, X.Y.: Isothermal oxidation behavior of TiAl–Nb–WBY alloys with different lamellar colony sizes. Rare Met. Mater. Eng. 45, 1695 (2016).Google Scholar
Li, Z.D., Zhang, G.Q., Zhao, Y.X., and Jia, X.Y.: Effects of alloying elements on high temperature oxidation resistance of Ni–Mo–Cr system superalloys. Chin. J. Nonferrous Met. 15, 238 (2005).Google Scholar
Lee, D.B.: Effect of Cr, Nb, Mn, V, W, and Si on high temperature oxidation of Ti Al alloys. Met. Mater. Int. 11, 141 (2005).CrossRefGoogle Scholar