Effect of Silicide on Dynamic Recrystallization in Near Alpha Titanium Alloy

Abstract:

Dynamic recrystallization in Ti-1100 was investigated. Ti-1100 is one of near α titanium alloys and contains Si for improving high temperature mechanical properties. Ti-1100 exhibits martensitic transformation by quenching into iced brine after solid solution treatment. Hereafter specimens subjected to quenching into iced brine and to cooling in air after solid solution treatment are called IBQ specimen and AC specimen, respectively. After tensile test at high temperature, IBQ specimen exhibits morphological change from lath structure to equiaxed structure, but AC specimen does not. It is indicated that dynamic recrystallization occurs during the tensile test of IBQ specimen. Effect of silicide on the dynamic recrystallization was investigated using two specimens: one included more silicide precipitates and the other less. The former specimen shows smaller recrystallized grains than the latter. It is indicated that the specimen including more silicides exhibits smaller recrystallized grains.

• Periodical: Materials Science Forum (Volume 879)
• Pages: 1634-1638
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.879.1634
• Online since: November 2016
• Authors: Tatsuaki Sakamoto*, Shohei Otsuka, Sengo Kobayashi
• Keywords: Dynamic Recrystallization, High Temperature Deformation, Near Alpha Titanium Alloy, Precipitation, Silicide, Tensile Test

References

[1] D. Eylon, S. Fujishiro and F. H. Froes, High Temp. Mater. Processes, 6 (1984) 81-91.

[2] N. Singh and V. Singh, Mater. Sci. Eng. A, 485 (2008) 130-139.

[3] Z. Chen, J. Li, J. Liu, Q. Wang, J. Liu and R. Yang, J. Mater. Sci. Technol., 26 (2010) 564-571.

[4] N. E. Paton and M. W. Mahoney, Metall. Trans. A, 7A (1976) 1685-1694.

[5] A. Madsen, E. Andrieu and H. Ghonem, Mater. Sci. Eng. A, 171 (1993) 191-197.

[6] A. Madsen and H. Ghonem, Mater. Sci. Eng. A, 177 (1994) 63-73.

[7] A. H. Rosenberger, A. Madsen and H. Ghonem, J. Mater. Eng. Perform., 4 (1995) 182-187.

[8] D. H. Lee and S. W. Nam, J. Mater. Sci., 34 (1999) 2843-2849.

[9] D. H. Lee, S. W. Nam and S. J. Choe, Mater. Sci. Eng. A, 291 (2000) 60-67.

[10] H. Matsumoto, H. Yoneda, D. Fabregue, E. Maire, A. Chiba, F. Gejima, J. Alloys and Compounds, 509 (2011) 2684-2692.

DOI: 10.1016/j.jallcom.2010.11.089

[11] H. M. Flower, P. R. Swann and D. R. F. West, J. Mater. Sci., 7 (1972) 929-938.

[12] H. Matsumoto, S. H. Lee, Y. OnoY. Li and A. Chiba, Adv. Eng. Mater., 13 (2011) 470-474.

[13] H. Matsumoto, L. Bin, S. H. Lee, Y. Li, Y. Ono and A. Chiba, Metall. Mater. Trans. A, 44A (2013) 3245-3260.

[14] A. S. H. Kabir, M. Sanjari, J. Su, I. H. Jung and S. Yue, Mater. Sci. Eng. A, 616 (2014) 252-259.

[15] Y. Lang, Y. Cai, H. Cui and J. Zhang, Mater. Design, 32 (2011) 4241-4246.

[16] Y. Cao, H. Di, J. Zhang, J. Zhang, T. Ma and R.D.K. Misra, Mater. Sci. Eng. A, 585 (2013) 71-85.

[17] S.K. Badjena and J.K. Park, Mater. Sci. Eng. A, 548 (2012) 126-133.

[18] W. T. Donlon, J. E. Allison and J. V. Lasecki, Titanium '92 Science and Technology (1993) 295-302.