Processing Maps for TC18 Titanium Alloy Deformed in α+β Region

Abstract:

The hot deformation characteristics of TC18 titanium alloy were studied in the temperature range 750-850°C and strain rate range 0.001-1 s-1 by using hot compression tests. Processing maps for hot working are developed on the basis of the variations of efficiency of power dissipation with temperature and strain rate. The results reveal that the flow stress of TC18 is sensitive to strain rate. Processing map at stain of 0.6 reveals two domains: one is centered at 750°C and 0.001s-1; another is centered at 850°C and 0.001s-1. The maximum efficiency is more than 60%. According to the maps, the zone with the temperature range of 750-850°C and strain rate range of 0.01-0.001s-1 may be suitable for hot working

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 3423-3426
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.3423
• Online since: March 2012
• Authors: Xin Zhao, Hong Zhao, Rui Zhang
• Keywords: Hot Working, Processing Map, Titanium Alloy

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