Friction Stir Processing Trials of SP-700 (Ti-4.5Al-3V-2Fe-2Mo) Titanium Alloy

Abstract:

Superplastic titanium alloy (SP-700 with nominal composition of Ti-4.5Al-3V-2Fe-2Mo) an alpha-beta alloy, with a beta-rich fine microstructure and excellent superplastic formability has wide applications in aerospace components, metal wood heads, tools, automotive components. However, very little information is available regarding friction stir processing (FSP) characteristics of this alloy. This study discusses the trials of FSP of this highly formable titanium alloy. Results are discussed in terms of hardness and temperature measurements and microstructural observations.

• Periodical: Defect and Diffusion Forum (Volume 385)
• Pages: 349-354
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.385.349
• Online since: July 2018
• Authors: Hamed Mofidi Tabatabaei*, Chiaki Okuyama, Tadashi Nishihara, Takahiro Ohashi
• Keywords: Friction Stir Processing, Friction Stir Welding, SP-700, Superplasticity, Titanium Alloy

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