Microstructure and Grain Refining Performance of a Rapidly Solidified Al-5Ti-1B Master Alloy

Abstract:

A rapidly solidified Al-5Ti-1B master alloy prepared by the in-rotating-liquid spinning process has been investigated. It has been found that the in-rotating-liquid spinning process is a potential rapid solidification method to realize the continuous production of the master alloy wire on a large scale. The microstructure of the Al-5Ti-1B was evidently improved after being rapidly solidified. The agglomeration of the TiB2 particle was significantly decreased. Consequently, the grain size of the purity aluminium refined by the rapidly solidified Al-5Ti-1B was reduced by 15% compared with that refined by the master alloy prepared under normal conditions.

• Periodical: Materials Science Forum (Volumes 546-549)
• Pages: 755-760
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.546-549.755
• Online since: May 2007
• Authors: Yan Feng Han, Da Shu, Lan Jin, Jun Wang, Bao De Sun
• Keywords: Al-Ti-B Master Alloy, Aluminum (Al), Grain Refinement, Rapid Solidification

References

[1] B.S. Murty, S.A. Kori and M. Chakrabort: Int. Mater. Rev. Vo. 47 (2002), p.3.

[2] T.E. Quested: Mater. Sci. Technol. Vol. 20 (2004), p.1357.

[3] N. Iqbal, N.H. van Dijk, S.E. Offerman, N. Geerlofs, M.P. Moret, L. Katgerman and G.J. Kearley: Mater. Sci. Eng. A Vol. 416 (2006), p.18.

DOI: 10.1016/j.msea.2005.10.045

[4] P.S. Mohanty and J.E. Gruzleski: Acta Mater. Vol. 44 (1996), p.3749.

[5] M.A. Easton and D.H. StJohn: Acta Mater. Vol. 49 (2001), p.1867.

[6] A.L. Greer, A.M. Bunn, A. Tronche, P.V. Evans and D.J. Bristow: Acta Mater. Vol. 48 (2000), p.2823.

[7] X.F. Liu, Z.G. Zhang, Z. Gao and X.F. Bian: JOM Vol. 52 (2000), p.47.

[8] A, Majumdar, R.H. Mair and B.C. Muddle: Mater. Res. Soc. Symp. Proc. Vol. 80 (1987), p.253.

[9] M.G. Chu: Mater. Sci. Eng. A Vol. 179-180 (1994), p.669.

[10] Z.H. Zhang, X.F. Bian, Y. Wang and X.F. Liu: Mater. Sci. Eng. A Vol. 352 (2003), p.8.

[11] Z.H. Zhang, X.F. Bian, Z.Q. Wang, X.F. Liu and Y. Wang: J. Alloys Comp. Vol. 339 (2002), p.180.

[12] Y.F. Han, K. Li, J. Wang, D. Shu and B.D. Sun: Mater. Sci. Eng. A Vol. 405 (2005) p.306.

[13] Y.F. Han, D. Shu, J. Wang and B.D. Sun: Mater. Sci. Eng. A (In press).

[14] M.X. Zhang, P.M. Kelly, M.A. Easton and J.A. Taylor: Acta Mater. Vol. 53 (2005), p.1427.

[15] N. Iqbal, N.H. van Dijk, S.E. Offerman, M.P. Moret, L. Katgerman and G.J. Kearley: Acta Mater. Vol. 53 (2005), p.2875.

DOI: 10.1016/j.actamat.2005.02.045

[16] T.E. Quested and A.L. Greer: Acta Mater. Vol. 53 (2005), p.2683.