High-temperature strength and ductility increases of Ti-Mo-Al alloys by step aging
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- Hida, M. & Weissmann, S. MTA (1975) 6: 1541. doi:10.1007/BF02641965
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Step-aging programs, based on principles of particle-dislocation interactions, were developed systematically to obtain increases in the high-temperature strength and ductility properties of Ti-7 at. pct Mo-Al alloys. A triple-step aging program applied to Ti-7 Mo-16 Al produced a yield stress σ0.2 = 1,500 MN/m2, elongation to fracture εF = 4 pct at room temperature, and σ0.2 = 900 MN/m2, εF= 12 pct at 600°C. A two-step aging program resulted in σ0.2 = 1,350 MN/m2, εF = 5 pct at room temperature; σ0.2 = 800 MN/m2, εF = 20 pct at 600°C.