TC4 titanium alloy and TC4ELI low clearance titanium alloy

TC4ELI low clearance titanium alloy is an improved version of TC4 titanium alloy, TC4 ELI low clearance titanium alloy is based on TC4 titanium alloy alloy with reduced content of clearance elements C, O, N and impurity element Fe. TC4 alloy can be used in normal environment or high temperature environment, and TC4ELI low clearance titanium alloy can be used in ultra-low temperature environment.

TC4 Titanium Alloy

TC4 (Ti-6Al-4V) titanium alloy is a (a+b) type two-phase titanium alloy containing 6% of α-stabilizing element and 4% of β-stabilizing element V. The nominal composition of TC4 titanium alloy is 7.0 aluminum equivalent, 2.9 molybdenum equivalent, and 10%-15% of β-phase in the annealed condition. Al is strengthened by solid solution strengthening of the α-phase in the Ti-Al-V system to improve the alloy's room-temperature strength and heat-strengthening properties. V is one of the few alloying elements in titanium alloys that can improve both strength and plasticity, and its beneficial effect on the plasticity of titanium alloys is due to the fact that it does not increase the ratio of the c/a axis of the α-state lattice as most alloying elements do, but rather reduces the ratio, thus improving the formation of the α-phase and avoiding alloy embrittlement during prolonged use.

The main features of TC4 titanium alloy are excellent comprehensive performance and good process performance.TC4 titanium alloy has medium room temperature strength and high temperature strength, good creep resistance and thermal stability, high fatigue resistance and crack extension resistance in seawater, as well as satisfactory fracture toughness and resistance to hot salt stress corrosion.TC4 also has less sensitivity to hydrogen than TC2, TC1 alloys, which makes it suitable for the manufacture of -196 ~ 450 ℃ a wide range of temperature range of work in a variety of parts, especially using the principle of damage tolerance limit the design of parts. TC4 titanium alloy also has excellent process plasticity and superplasticity, suitable for molding with a variety of pressure machining methods, and a variety of ways to weld and machining.

TC4ELI low clearance titanium alloy

TC4ELI low clearance titanium alloy is the improved type of TC4 titanium alloy, TC4 ELI low clearance titanium alloy in the TC4 titanium alloy based on the reduction of the gap element C, O, N and the content of impurity elements Fe, the strength has been reduced, but can be significantly improve the toughness of the capacity of the TC4 ELI low clearance titanium alloy has a better plasticity, toughness, good welding performance and low-temperature use of the performance, widely used in It is widely used in cryogenic engineering, medical treatment, ships and aircraft and other important fields.

TC4ELI low clearance titanium alloy has become an ideal material for medical surgical implants with its advantages of good biocompatibility, low modulus of elasticity, low density, good corrosion resistance, non-toxicity, high yield strength, long fatigue life, greater plasticity at room temperature, and ease of molding. Medical TC4ELI low-gap titanium alloy sheet is mainly used for cranial bone repair, bone grafting, etc., which has higher requirements for its strength, fatigue life, plasticity and so on.