Year1
- 产地：
- 进口/国标
- 用途：
- 广泛
- 规格：
- 齐全
Industrial pure titanium has excellent stamping properties. It can perform various forms of welding, has good welding performance, and the welded joint can reach the strength of the base metal. Easy to cut with saws and grinders, and has good machining properties. It has excellent corrosion resistance and is used for parts with small stress below ℃ and parts stamped into various complex shapes. Such as thermal power station condenser, marine seawater corroded piping system, valve pump, chemical heat exchanger, pump body, distillation tower, seawater desalination system, platinum-coated anode, aircraft skeleton, skin, engine parts, beams, etc.
Titanium alloy has good welding properties and has High creep strength, but low process plasticity. It can be deformed in a hot state. When the alloy is subjected to axial load, it is not sensitive to the notch. The cutting performance is still good. Parts and weldments working below ℃
Titanium alloy The stamping performance is poor, but the thermoplasticity is still good. It can perform various forms of welding and has good performance. The strength and plasticity of the welded joint can be equal to the base metal. The machining performance is the same as that of industrial pure titanium. It has good corrosion resistance and good high-temperature thermal stability. It can be used as structural parts for long-term operation at temperatures below ℃. It can be used as various die forgings. Titanium alloy has good thermoplasticity. It can be welded in various forms and has good weldability. The machinability is the same as industrial pure titanium. Good oxidation resistance, long-term working parts below ℃. Can manufacture engine compressor discs and blades.
Titanium alloy has good stamping properties. It can be welded in various forms and has good weldability. The machinability is the same as industrial pure titanium. Parts with good oxidation resistance can be used for work below ℃. Suitable for various plates, stampings and welded parts
Titanium alloy has a lasting strength of above 10°C and good plasticity during hot processing. When heated to ℃, there is no tendency to become brittle. Therefore, it can be used to weld parts that work at high temperatures, welding parts, die forgings and bending parts that work below ℃. Titanium alloys have poor stamping properties and good thermoplasticity. Various forms of welding can be performed, and the strength of the welded joint can reach the strength of the base metal. The machining performance is still good. Carbide tools need to be used, with large cutting speeds and slow speeds, and sufficient cooling. Good corrosion resistance and good thermal stability. It is one of the most widely used titanium alloys. It is used for parts that work for a long time below ℃. Titanium alloys are stable below ℃, but their plasticity decreases at higher temperatures. Parts that can be deformed such as forging and stamping in a hot state and work below ℃ have good thermoplasticity. Machinability is the same as the alloy. High corrosion resistance. Thermal stability is still good and parts that work for a long time below ℃. Can manufacture compressor discs and blades. Titanium alloy has poor stamping properties but good thermoplasticity. Various forms of welding can be performed, and the strength of the welded joint can reach the strength of the base metal. The machining properties are the same as those of the alloy. Good corrosion resistance. It has good thermal stability, significant heat treatment effect, and good hardenability. It is suitable for parts that work for a long time below ℃. Titanium alloy is an alloy composed of titanium as the base and adding other elements. There are two types of isomorphic crystals of titanium: titanium with a close-packed hexagonal structure below ℃, and body-centered cubic titanium above ℃.
Alloying elements can be divided into three categories according to their influence on the phase transformation temperature
① Elements that stabilize the phase and increase the phase transformation temperature are stable elements, such as aluminum, carbon, oxygen and nitrogen. Among them, aluminum is the main alloying element of titanium alloy. It has a significant effect on improving the normal and high temperature strength of the alloy, reducing the specific gravity and increasing the elastic modulus.
② Elements that stabilize the phase and lower the phase transition temperature are stable elements, and can be divided into two types: isomorphous and eutectoid. The former includes molybdenum, niobium, vanadium, etc. The latter includes chromium, manganese, copper, iron, silicon, etc.
③ Elements that have little effect on the phase transition temperature are neutral elements, such as zirconium and tin. Oxygen, nitrogen, carbon and hydrogen are the main impurities in titanium alloys. Oxygen and nitrogen have a large solubility in the phase and have a significant strengthening effect on titanium alloys, but they reduce the plasticity. It is usually specified that the oxygen and nitrogen contents in titanium are at and below respectively. The solubility of hydrogen in the phase is very small. Excessive hydrogen dissolved in titanium alloys will produce hydrides, making the alloy brittle. Usually the hydrogen content in titanium alloys is controlled below. The dissolution of hydrogen in titanium is reversible and can be removed by vacuum annealing.
Classification of titanium alloys
Titanium is an allotrope with a melting point of ℃. When it is lower than ℃, it has a close-packed hexagonal lattice structure, which is called titanium. Above ℃, it has a body-centered cubic lattice structure. called titanium. Taking advantage of the different characteristics of the above two structures of titanium, adding appropriate alloying elements will gradually change the phase transformation temperature and phase content to obtain titanium alloys with different structures. At room temperature, titanium alloys have three matrix structures, and titanium alloys are divided into the following three types of alloys, alloys and alloys. China is represented by respectively.
Titanium alloy
It is a single-phase alloy composed of phase solid solution. Whether at normal temperature or at higher practical application temperature, it is a phase with stable structure and higher wear resistance than pure titanium. , strong antioxidant capacity. At temperatures of ℃, it still maintains its strength and creep resistance, but it cannot be strengthened by heat treatment, and its room temperature strength is not high.
Titanium alloy
It is a single-phase alloy composed of phase solid solution. It has high strength without heat treatment. After quenching and aging, the alloy is further strengthened. The strength at room temperature can be achieved but the thermal stability is poor. It is not suitable for Use at high temperatures.
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