Effect of Zr Addition on High Temperature Mechanical Properties of Near Alpha Ti-Al-Zr-Sn Based Alloy

Abstract:

Titanium (Ti) alloys are widely used in aerospace industries successfully up to 600°C. Increasing the operating temperature and performance of these alloys would be very useful for fuel economy. Numerous numbers of research works has been focused on the improvement of the high temperature performances of Ti alloys. It has been well known that Zirconium (Zr) is one of the important solid-solution strengthener in Ti-alloys. In the present study, the effect of Zr addition on the microstructure and mechanical properties of the near–α Ti-Al-Zr-Sn based alloys has been investigated.The compression test results showed that Zr addition significantly improves both room temperature and high temperature strength. The results obtained were explained based on the microstructural observation, room temperature and high temperature compressive tests.

• Periodical: Materials Science Forum (Volumes 783-786)
• Pages: 580-583
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.783-786.580
• Online since: May 2014
• Authors: Murugesan Jayaprakash*, De Hai Ping, Y. Yamabe-Mitarai
• Keywords: Alloying Addition, Compression Test, Microstructure Characterization, Ti Alloys

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