V. Venkatesh, TIMET-R&D,, Henderson, NV; J. Fanning, TIMET-R&D, Henderson, NV
TIMETAL 555 (Ti-5Al-5Mo-5B-3Cr), a near beta titanium alloy, is capable of attaining a good combination of strength, ductility and toughness, for use in structural airframe parts. In order to achieve optimal mechanical properties, good control of thermomechanical processing parameters is required. This study summarizes the effect of processing conditions, such as temperature, strain and strain rate, on flow localization, damage and microstructural evolution. In addition, the effects of solution treatment temperatures, cooling rates and aging conditions on tensile and fracture properties will also be discussed.
Summary: TIMETAL 555 (Ti-5Al-5Mo-5B-3Cr), a near beta titanium alloy, is capable of attaining a good combination of strength, ductility and toughness, for use in structural airframe parts. In order to achieve optimal mechanical properties, good control of thermomechanical processing parameters is required. This study summarizes the effect of processing conditions, such as temperature, strain and strain rate, on flow localization, damage and microstructural evolution. In addition, the effects of solution treatment temperatures, cooling rates and aging conditions on tensile and fracture properties will also be discussed.
