Effect of hydrogen on mold filling behavior of TiAl alloy

作者: Xinwang Liu , Zhaolong Zhang , Hui Du , Fuchu Liu , Zitian Fan

DOI: 10.1016/J.INTERMET.2014.07.008

关键词:

摘要: Abstract Since TiAl alloy requires superior mold filling capability, this study used hydrogen to improve its capability by introducing the into molten alloy. The was evaluated pouring alloys containing various levels of a thin perforated sheet graphite mold. volume percentage increased with increasing addition. And tendency became very slight after reached 15 kPa. In addition, pore formation also examined X-ray radiographs.

参考文章(28)
I. Watanabe, M. Woldu, K. Watanabe, T. Okabe, Effect of casting method on castability of titanium and dental alloys. Journal of Materials Science: Materials in Medicine. ,vol. 11, pp. 547- 553 ,(2000) , 10.1023/A:1008972018025
K. Liu, Y.C. Ma, M. Gao, G.B. Rao, Y.Y. Li, K. Wei, Xinhua Wu, M.H. Loretto, Single step centrifugal casting TiAl automotive valves Intermetallics. ,vol. 13, pp. 925- 928 ,(2005) , 10.1016/J.INTERMET.2004.12.004
M. Palm, N. Engberding, F. Stein, K. Kelm, S. Irsen, Phases and evolution of microstructures in Ti–60 at.% Al Acta Materialia. ,vol. 60, pp. 3559- 3569 ,(2012) , 10.1016/J.ACTAMAT.2012.03.021
D.F Teter, I.M Robertson, H.K Birnbaum, The effects of hydrogen on the deformation and fracture of β-titanium Acta Materialia. ,vol. 49, pp. 4313- 4323 ,(2001) , 10.1016/S1359-6454(01)00301-9
S. Chen, C.P. Liang, H.R. Gong, Structural stability, mechanical property and elastic anisotropy of TiAl-H system International Journal of Hydrogen Energy. ,vol. 37, pp. 2676- 2684 ,(2012) , 10.1016/J.IJHYDENE.2011.11.025
C YU, C SHEN, T PERNG, Microstructure of Ti-6Al-4V processed by hydrogenation Scripta Materialia. ,vol. 55, pp. 1023- 1026 ,(2006) , 10.1016/J.SCRIPTAMAT.2006.08.010
P.X. Fu, X.H. Kang, Y.C. Ma, K. Liu, D.Z. Li, Y.Y. Li, Centrifugal casting of TiAl exhaust valves Intermetallics. ,vol. 16, pp. 130- 138 ,(2008) , 10.1016/J.INTERMET.2007.08.007
ON Senkov, Francis Herbert Froes, Thermohydrogen processing of titanium alloys International Journal of Hydrogen Energy. ,vol. 24, pp. 565- 576 ,(1999) , 10.1016/S0360-3199(98)00112-8
P.A. Sundaram, D. Basu, R.W. Steinbrech, P.J. Ennis, W.J. Quadakkers, L. Singheiser, Effect of hydrogen on the elastic modulus and hardness of gamma titanium aluminides Scripta Materialia. ,vol. 41, pp. 839- 845 ,(1999) , 10.1016/S1359-6462(99)00197-9