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Hydrogenation behavior of Ti–44Al–6Nb alloy and its effect on the microstructure and hot deformability

Published online by Cambridge University Press:  17 January 2017

Tengfei Ma ,
Ruirun Chen ,
Deshuang Zheng ,
Chang Liu ,
Jingjie Guo ,
Hongsheng Ding ,
Yanqing Su  and
Hengzhi Fu
Tengfei Ma
Affiliation:
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin150001, China
Ruirun Chen*
Affiliation:
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin150001, China
Deshuang Zheng
Affiliation:
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin150001, China
Chang Liu
Affiliation:
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin150001, China
Jingjie Guo
Affiliation:
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin150001, China
Hongsheng Ding
Affiliation:
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin150001, China
Yanqing Su
Affiliation:
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin150001, China
Hengzhi Fu
Affiliation:
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin150001, China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

The hydrogenation behavior of Ti–44Al–6Nb (at.%) alloy was studied at temperature range of 1373–1693 K, and the effect of hydrogen on hot deformability was tested on Gleeble-1500D thermo-simulation machine. It is found that the lnCH increases linearly with 1/T, and hydrogen content increases with increasing of hydrogen time and flow rate logarithmically. The positive heat of solution of hydrogen denotes that hydrogen absorption in TiAl alloys is an endothermic reaction. The results also show that hydrogen promotes the lamellar colony size and lamellar spacing because that hydrogen can promote the diffusion of elements. There is more residual B2 phase in the hydrogenated alloy revealing that hydrogen stabilizes the B2 phase during hydrogenation. The nanohardness and elastic modulus of the alloy are decreased from 4.4 and 213.5 GPa to 4.2 and 199.8 GPa after hydrogenation with 0.033 wt% H. Thermal simulation results show that the peak stress is decreased by 30% after hydrogenation with 0.033 wt% H which corresponds to decreasing the deformation temperature by about 50 K. This is attributed to hydrogen-promoted dynamic recrystallization and dislocation movement.

Keywords

hydrogenationmicrostructurestress/strain relationship
Type
Articles
Information
Journal of Materials Research , Volume 32 , Issue 7 , 14 April 2017 , pp. 1304 - 1315
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Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Jürgen Eckert

References

REFERENCES

Cinca, N., Lima, C.R.C., and Guilemany, J.M.: An overview of intermetallics research and application: Status of thermal spray coatings. J. Mater. Sci. Technol. 2, 75 (2013).Google Scholar
Liu, B., Liu, Y., Qiu, C., Zhou, C., Li, J., Li, H., and He, Y.: Design of low-cost titanium aluminide intermetallics. J Alloys Compd. 640, 298 (2015).Google Scholar
Xia, Y., Yu, P., Schaffer, G.B., and Qian, M.: Cobalt-doped Ti–48Al–2Cr–2Nb alloy fabricated by cold compaction and pressureless sintering. Mater. Sci. Eng., A 574, 176 (2013).Google Scholar
Kong, F., Cui, N., Chen, Y., Wang, X., and Xiong, N.: Characterization of hot deformation behavior of as-forged TiAl alloy. Intermetallics 55, 66 (2014).Google Scholar
Gerling, R., Bartels, A., Clemens, H., Kestler, H., and Schimansky, F.: Structural characterization and tensile properties of a high niobium containing gamma TiAl sheet obtained by powder metallurgical processing. Intermetallics 12, 275 (2004).Google Scholar
Froes, F.H., Senkov, O.N., and Qazi, J.I.: Hydrogen as a temporary alloying element in titanium alloys: Thermohydrogen processing. Int. Mater. Rev. 49, 227 (2004).Google Scholar
Eliaz, N., Eliezer, D., and Olson, D.L.: Hydrogen-assisted processing of materials. Mater. Sci. Eng., A 289, 41 (2000).Google Scholar
Senkov, O.N. and Froes, F.H.: Thermohydrogen processing of titanium alloys. Int. J. Hydrogen Energy 24, 565 (1999).Google Scholar
Zong, Y., Shan, D., Lv, Y., and Guo, B.: Effect of 0.3 wt% H addition on the high temperature deformation behaviors of Ti–6Al–4V alloy. Int. J. Hydrogen Energy 32, 3936 (2007).Google Scholar
Liu, X., Su, Y., Luo, L., Liu, J., Guo, J., and Fu, H.: Effect of hydrogen on hot deformation behaviors of TiAl alloys. Int. J. Hydrogen Energy 35, 13322 (2010).Google Scholar
Wen, D.S., Zong, Y.Y., Wang, Y.Q., Liu, Z.Y., and Shan, D.B.: Positive influence of hydrogen on the hot workability and dynamic recrystallization of a γ-TiAl based alloy. Mater. Sci. Eng., A 656, 151 (2016).Google Scholar
Takasaki, A., Furuya, Y., Ojima, K., and Taneda, Y.: Hydrogen solubility of two-phase (Ti3Al + TiAl) titanium aluminides. Scr. Mater. 32, 1759 (1995).CrossRefGoogle Scholar
Takasaki, A., Furuya, Y., and Taneda, Y.: Hydrogen uptake in titanium aluminides in high pressure hydrogen. Mater. Sci. Eng., A 239–240, 265 (1997).Google Scholar
Takasaki, A.: High-pressure hydrogen charging of TiAl-based titanium aluminides. Scr. Mater. 38, 687 (1998).Google Scholar
Zhang, J.X. and He, H.Q.: Deformation-induced γ → DI-α2 phase transformation in a Ti–48Al–2Cr alloy. J. Mater. Res. 15, 2145 (2000).Google Scholar
Dey, S.R., Bouzy, E., and Hazotte, A.: Intragranular nucleation sites of massive γ grains in a TiAl-based alloy. Scr. Mater. 57, 365 (2007).Google Scholar
Li, Y., Zhou, L., Lin, J., Chang, H., and Li, F.: Phase transformation behavior and kinetics of high Nb–TiAl alloy during continuous cooling. J Alloys Compd. 668, 22 (2016).Google Scholar
Cui, J.P., Sui, M.L., Cui, Y.Y., and Li, D.X.: Ductile TiAl alloy with a widmanstatten lamellar structure formed by rapid heating. J. Mater. Res. 23, 949 (2008).Google Scholar
Qazi, J.I., Senkov, O.N., Rahim, J., Genc, A., and Froes, F.H.: Phase transformations in Ti6Al4V–xH alloys. Metall. Mater. Trans. A 32A, 2453 (2001).Google Scholar
Liu, G., Li, X., Su, Y., Liu, D., Guo, J., and Fu, H.: Microstructure, microsegregation pattern and the formation of B2 phase in directionally solidified Ti–46Al–8Nb alloy. J Alloys Compd. 541, 275 (2012).Google Scholar
Voisin, T., Monchoux, J., Hantcherli, M., Mayer, S., Clemens, H., and Couret, A.: Microstructures and mechanical properties of a multi-phase β-solidifying TiAl alloy densified by spark plasma sintering. Acta Mater. 73, 107 (2014).Google Scholar
Chladil, H.F., Clemens, H., Leitner, H., Bartels, A., Gerling, R., Schimansky, F.P., and Kremmer, S.: Phase transformations in high niobium and carbon containing γ-TiAl based alloys. Intermetallics 14, 1194 (2006).Google Scholar
Chen, S., Liang, C.P., and Gong, H.R.: Structural stability, mechanical property and elastic anisotropy of TiAl-H system. Int. J. Hydrogen Energy 37, 2676 (2012).Google Scholar
Niinomi, M., Gong, B., Kobayashi, T., Ohyabu, Y., and Toriyama, O.: Fracture characteristics of Ti–6Al–4V and Ti–5Al–2.5Fe with refined microstructure using hydrogen. Metall. Mater. Trans. A 26, 1141 (1995).Google Scholar
Zhang, Y., Zhang, S.Q., and Tao, C.: Hydrogenation behavior of Ti–25Al–l0Nb–3V–1Mo and effect of hydrogen on its microstructure deformability. Int. J. Hydrogen Energy 22, 125 (1997).Google Scholar
Sundaram, P.A., Wessel, E., Clemens, H., Kestler, H., and Ennis, P.J.: Determination of the diffusion coefficient of hydrogen in gamma titanium aluminides during electrolytic charging. Acta Mater. 48, 1005 (2000).Google Scholar
Su, Y., Liu, X., Luo, L., Zhao, L., Guo, J., and Fu, H.: Hydrogen solubility in molten TiAl alloys. Int. J. Hydrogen Energy 35, 8008 (2010).Google Scholar
Huang, A., Hu, D., Loretto, M.H., Mei, J., and Wu, X.: The influence of pressure on solid-state transformations in Ti–46Al–8Nb. Scr. Mater. 56, 253 (2007).Google Scholar
Ramanujan, R.V.: Phase transformations in γ based titanium aluminides. Int. Mater. Rev. 45, 217 (2000).Google Scholar
Kong, F.T., Xiao, S.L., Chen, Y.Y., and Li, B.H.: Continuous cooling chase transformation of Ti–45Al–5Nb(–0.3Y) alloys. Rare Metal. Mat. Eng. 38, 25 (2009).Google Scholar
Wei, Y., Zhang, Y., Lu, G., and Xu, H.: A first-principles study of site occupancy and interfacial energetics of an H-doped TiAl–Ti3Al alloy. Sci. China Phys. Mech. 55, 228 (2012).Google Scholar
Clemens, H., Bartels, A., Bystrzanowski, S., Chladil, H., Leitner, H., Dehm, G., Gerling, R., and Schimansky, F.P.: Grain refinement in γ-TiAl-based alloys by solid state phase transformations. Intermetallics 14, 1380 (2006).Google Scholar
Dong, S., Chen, R., Guo, J., Ding, H., Su, Y., and Fu, H.: Effect of heat treatment on microstructure and mechanical properties of cast and directionally solidified high-Nb contained TiAl-based alloy. J. Mater. Res. 30, 3331 (2015).Google Scholar
Han, X.L., Wang, Q., Sun, D.L., and Zhang, H.X.: First-principles study of the effect of hydrogen on the Ti self-diffusion characteristics in the alpha Ti–H system. Scr. Mater. 56, 77 (2007).Google Scholar
He, P., Fan, L., Liu, H., and Feng, J.C.: Effects of hydrogen on diffusion bonding of TiAl-based intermetallics using hydrogenated Ti6Al4V interlayer. Int. J. Hydrogen Energy 35, 13317 (2010).Google Scholar
Wen, D., Zong, Y., Xu, W., Shan, D., and Guo, B.: The effect of hydrogen on phase transformation and mechanical properties of a β containing γ–TiAl based alloy. Int. J. Hydrogen Energy 39, 17404 (2014).Google Scholar
Schmoelzer, T., Liss, K., Zickler, G.A., Watson, I.J., Droessler, L.M., Wallgram, W., Buslaps, T., Studer, A., and Clemens, H.: Phase fractions, transition and ordering temperatures in TiAl–Nb–Mo alloys: An in- and ex-situ study. Intermetallics 18, 1544 (2010).Google Scholar
Clemens, H., Wallgram, W., Kremmer, S., Güther, V., Otto, A., and Bartels, A.: Design of novel β-solidifying TiAl alloys with adjustable β/B2-Phase fraction and excellent hot-workability. Adv. Eng. Mater. 10, 707 (2008).Google Scholar
Sundaram, P.A., Quadakkers, W.J., and Singheiser, L.: Hydrogen effusion in cathodically charged gamma titanium aluminides. J Alloys Compd. 298, 274 (2000).Google Scholar
Sundaram, P.A., Basu, D., Steinbrech, R.W., Ennis, P.J., Quadakkers, W.J., and Singheiser, L.: Effect of hydrogen on the elastic modulus and hardness of gamma titanium aluminides. Scr. Mater. 41, 839 (1999).Google Scholar
Xu, X.J., Lin, J.P., Wang, Y.L., Lin, Z., and Chen, G.L.: Deformability and microstructure transformation of pilot ingot of Ti–45Al–(8–9)Nb–(W, B, Y) alloy. Mater. Sci. Eng., A. 416, 98 (2006).Google Scholar
He, W.J., Zhang, S.H., Song, H.W., and Cheng, M.: Hydrogen-induced hardening and softening of a β-titanium alloy. Scr. Mater. 61, 16 (2009).Google Scholar
Wray, P.J.: Effect of carbon content on the plastic flow of plain carbon steels at elevated temperatures. Metall. Mater. Trans. A 13, 125 (1982).Google Scholar
Mejía, I., Altamirano, G., Bedolla-Jacuinde, A., and Cabrera, J.M.: Modeling of the hot flow behavior of advanced ultra-high strength steels (A-UHSS) microalloyed with boron. Mater. Sci. Eng., A 610, 116 (2014).Google Scholar
Zong, Y.Y., Wen, D.S., Liu, Z.Y., and Shan, D.B.: Effect of hydrogen on the microstructural evolution of a γ-TiAl based alloy. Mater. Lett. 14, 223 (2015).Google Scholar