Paper Title:
Microstructure and Tensile Properties of Hot Worked High Nb Containing TiAl Alloy on Industrial Scale
  Abstract

. A hot working and its effect on the microstructure and tensile properties of Ti-45Al-9 (Nb, W, B, Y) alloy ingot on industrial scale were investigated. The results showed that the alloy has good workability in anα+γphase region. An ingot on industrial scale was successfully extruded followed by multi-step canned forging. The initial microstructure of the alloy is fine full lamellar (FL) microstructure. After hot working a sound pancake exhibiting a fine grain duplex (DP) microstructure with grain size about 20μm was obtained. The as-forged alloy has more balanced tensile properties than the small heats with similar composition and microstructure at both room and high temperatures.

  Info
Periodical
Materials Science Forum (Volumes 475-479)
Main Theme
Edited by
Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie
Pages
785-788
DOI
10.4028/www.scientific.net/MSF.475-479.785
Citation
J. P. Lin, X. J. Xu, J. F. Gao, Y. L. Wang, Z. Lin, G. L. Chen, "Microstructure and Tensile Properties of Hot Worked High Nb Containing TiAl Alloy on Industrial Scale", Materials Science Forum, Vols. 475-479, pp. 785-788, 2005
Online since
January 2005
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