Microstructure Evolution of the Ti-6.62Al-5.14Sn-1.82Zr Alloy in the Superplastic Compression

Abstract:

Article Preview

Superplastic compression of the Ti-6.62Al-5.14Sn-1.82Zr alloy were carried out at a Thermecmaster-Z simulator at deformation temperatures of 960°C, 980°C, 1000°C and 1020°C, strain rate of 0.001 s-1, 0.01 s-1 and 0.1 s-1, and height reduction of 50%, 60% and 70%. The α phase decreases with the increasing of deformation temperature, and the grain size of α phase has a slight variation with the deformation temperature. The strain rate affects both the morphologies and the grain size of α phase, and the optimal strain rate makes the grains be fine. The optimal height reduction also makes the α phase be fine and well distributed on the matrix of Ti-6.62Al-5.14Sn-1.82Zr alloy after superplastic compression.

Info:

Periodical:

Materials Science Forum (Volumes 551-552)

Edited by:

K.F. Zhang

Pages:

379-382

Citation:

M. Q. Li et al., "Microstructure Evolution of the Ti-6.62Al-5.14Sn-1.82Zr Alloy in the Superplastic Compression", Materials Science Forum, Vols. 551-552, pp. 379-382, 2007

Online since:

July 2007

Export:

Price:

$38.00

[1] P. Wanjara, M. Jahazi, H. Monajati, S. Yue and J.P. Immarigeon: Materials Science and Engineering A Vol. 396 (2005), p.50.

DOI: https://doi.org/10.1016/j.msea.2004.12.005

[2] D.H. Lee, S.W. Nam and S.J. Choe: Materials Science and Engineering A Vol. 291 (2000), p.60.

[3] H.S. Pan: Deformation mechanism and heat treatment of Ti-6. 62Al-5. 14Sn-1. 82Zr alloy. Xi'an: Thesis for Master's degree of Northwestern Polytechnical University, China, (2005).

[4] Miaoquan Li, Aiming Xiong, Weichao Huang, Hairong Wang, Shaobo Su and Lichuang Shen: Materials Characterization Vol. 49 (2002), p.203.

DOI: https://doi.org/10.1016/s1044-5803(02)00323-6

[5] A. Madsen, E. Andrieu and H. Ghonem: Materials Science and Engineering A Vol. 171 (1993), p.191.

[6] P. Wanjara, M. Jahazi, H. Monajati and S. Yue: Materials Science and Engineering A Vol. 416 (2006), p.300.

[7] Miaoquan Li, Aiming Xiong, Shenghui Chen, Weichao Huang, Yuanchun Li and Hai Lin: Rare Metals Vol. 23 (2004), p.263.