Effect of Tungsten Addition on Microstructure and Mechanical Properties of TiAl-Based Alloy

Abstract:

The effect of different tungsten addition on microstructure and mechanical property of TiAl-based alloy was investigated. The results indicate that the size and amount of β (B2) phase and equiaxed γ phase gradually increase with increasing content of tungsten. The grain size and lamellar spacing obey a parabolic law. The tungsten addition can increase the room temperature strength, high temperature strength but have a little effect on the ductility. The creep rupture life has inverse correlation relationship with the content of tungsten.

• Periodical: Applied Mechanics and Materials (Volumes 275-277)
• Pages: 1884-1889
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.275-277.1884
• Online since: January 2013
• Authors: Hong Liang Sun, Ze Wen Huang, De Gui Zhu
• Keywords: Mechanical Property, Microstructure, TiAl-Based Alloy, Tungsten

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