Research Status of the Static and Dynamic Mechanical Behaviors of Near-α Titanium Alloys
Near-α titanium alloys have excellent mechanical properties and high specific strength,exceptional creep properties and fatigue resistance within a wide temperature range and are among the indispensable structural materials in numerous fields,such as aerospace,water conservancy,electric power,and metallurgy.Currently,with the continuous exploration of the aerospace field and extremely cold regions,the requirements for the performance of titanium alloy structural materials have become more stringent.Titanium alloys are not only required to possess relatively high static mechanical properties but also place high demands on their dynamic mechanical properties to adapt to extreme environments.The composition of titanium alloys primarily determines their type and performance.Moreover,through appropriate hot working,cold working,and heat treatment,their physical and mechanical properties can be further regulated.Therefore,this paper reviews the factors influencing the static and dynamic mechanical behavior of near-α titanium alloys,discusses the effects of elemental composition and texture on the mechanical properties of near-α titanium alloys,and summarizes the research status of the dynamic mechanical behavior of near-α titanium alloys under high strain rates.