Industrial Pure Titanium TA1/TA2/TA3:
Excellent stamping performance. Various forms of welding can be performed, and the welding performance is good, and the welded joint can reach 90% of the strength of the base metal. Easy to cut with saw and grinding wheel, good machining performance. Excellent corrosion resistance for parts below 350 ° C, with small forces and parts stamped into various complex shapes. Such as thermal power plant condenser; Marine seawater corrosion piping systems, valves, pumps; Chemical heat exchanger, pump body, distillation tower; Seawater desalination system, platinum-plated anode; Aircraft skeleton, skin, engine parts, beams, etc.
Titanium alloy TA6:
It has good welding performance and high creep strength, but the process plasticity is low, it can be deformed under hot state, and the alloy is not sensitive to the incision when it is subjected to axial load, and the cutting performance is better than the parts and welds that work below 400℃.
Titanium alloy TA7:
Stamping performance is poor, thermoplasticity is good. Various forms of welding can be performed, with good performance, and the strength and plasticity of the welded joint can be similar to the base metal. The machining performance is the same as that of industrial pure titanium. Good corrosion resistance, good high temperature thermal stability to do long-term work below 500℃ structural parts, can do a variety of die forging parts.
Titanium alloy TA8:
Good thermoplasticity. It can be welded in various forms with good weldability. Machinability is the same as industrial pure titanium. Good oxidation resistance long-term working parts below 500℃. Engine compressor discs and blades can be manufactured.
Titanium alloy TC1:
Good pressure. It can be welded in various forms with good weldability. Machinability is the same as industrial pure titanium. Good oxidation resistance to parts that work below 400 ° C. Suitable for all kinds of plate, stamping and welding parts.
Titanium alloy TC2:
At 350℃, the lasting strength of 100h is more than 400MPa, and the hot processing has good plasticity. Heated to 350-400 ° C, there is no tendency to brittleness, so it can be used to weld parts that work at high temperatures to do parts that work below 500 ° C, welding parts, die forging parts and bending parts.
Titanium alloy TC3:
Poor stamping, good thermoplasticity. Various forms of welding can be performed, and the strength of the welded joint can reach 90% of the strength of the base metal. Machining performance is still good, need to use carbide, large cutting amount, slow speed, full cooling. Good corrosion resistance, good thermal stability. It is one of the most widely used titanium alloys for long-term work below 400 ° C.
Titanium alloy TC4:
The material is composed of Ti-6Al-4V, which belongs to (a+b) type titanium alloy and has good comprehensive mechanical properties. The specific strength is greater. TC4 strength sb=1.012MPa, density g=4.4*103, specific strength sb/g=23.5, and alloy steel specific strength sb/g less than 18. Titanium alloys have low thermal conductivity. The thermal conductivity of titanium alloy is 1/5 of iron, 1/10 of aluminum, and the thermal conductivity of TC4 l=7.955W/m·K. Linear expansion coefficient =7.89*10-6℃, specific heat =0.612cal/g·℃. The elastic modulus of titanium alloy is low. The elastic modulus of TC4 is E=110GPa, which is about 1/2 of steel, so titanium alloy is easy to deform during processing. TC4(Ti-6Al-4V) and TA7(Ti-5Al-2.5Sn) titanium alloys were modified by two injection schemes. The test shows that after ion implantation, the microhardness of titanium alloys is improved, the sliding friction coefficient is significantly reduced, and the wear resistance is effectively improved. X-ray photoelectron spectroscopy (XPS) analysis of injected and uninjected samples was carried out to find out the modification mechanism, and satisfactory results were obtained. TC4 titanium alloy has a series of advantages such as excellent corrosion resistance, small density, high specific strength and good toughness and weldability, and has been successfully applied in aerospace, petrochemical, shipbuilding, automobile, mold, medicine and other departments.