Titanium alloy has excellent properties such as low density and high strength, and is an ideal aerospace structural material. At present, the application of titanium alloy in the aerospace industry has been favored by people for more and more months.
Titanium alloy has the highest tensile plasticity and can be welded in various ways. The long-term use temperature can reach up to 250 degrees Celsius. It is mainly used to manufacture various low-strength Bancun structural parts on aircraft and engines. Industrial pure titanium has good plasticity, can form various sheet stampings in the cold state, and has high corrosion resistance. The Ti5Al2.5Sn titanium alloy has a moderate room temperature tensile strength (800 ℃ 1000 MPa and good welding performance. Compared with the pure industry titanium, the new titanium alloy mainly includes various different grades of industry pure titanium and widely used Ti5Al2.5Sn Titanium alloy, industrial pure titanium room temperature tensile strength fluctuates in the range of 350 ℃ 700MPa. Ti5Al2.5Sn alloy process plasticity is slightly lower, and the thermal strength is higher, long-term working temperature can be as high as 450 ℃.
With the rapid development of cutting-edge science and technology such as aviation, aerospace, nuclear energy, etc., the requirements for materials are becoming more and more stringent. Not only are the materials for manufacturing equipment parts in these aspects resistant to corrosion, wear, and micro-vibration, but also require high resistance. temperature. It is necessary to pay attention to long-term tests. In many places, before the chemical industry applies titanium on a large scale. Under the test conditions, cooperate to check its service life and material structure. If most of the conventional structural data shows that the lack of safety (immature) results in low economic benefits, then firstly titanium and its alloys must be gradually developed, and the high-tech technology in the field of structural data has been developed in recent decades Mature other new materials. Therefore, the military sector has developed faster than the civilian sector in the application of titanium and its alloys.
In many industrial media, the rare earth and precious metals that are mainly used are often stable, or the corrosion resistance of materials such as stainless steel can only reach a certain limit. Most applications use titanium because of its low density, corrosion resistance and strength. So far. And the cost of consumption is relatively high, so the use of titanium or titanium alloys can obtain higher corrosion resistance. The creep characteristics of hard titanium when it exceeds 150T exceed aluminum and its alloys. Considering that compared with other materials, titanium alloys have unique creep characteristics under low-density conditions, and they have found the advantages of hard titanium in aircraft manufacturing and missile manufacturing. The importance of application. The earliest application of titanium and titanium alloys was in the aerospace industry. Recently, the aerospace industry is increasingly in need of high-strength and low-density materials, which has greatly promoted the development of the titanium manufacturing industry. In the early 1950s, the United States successfully applied titanium to aircraft. At that time, although the E-machine only used 1% of the structural weight of titanium, it pioneered the pioneering way of using titanium in the aviation industry. At present, titanium alloys are widely used as structural materials in many high-speed aircrafts in the world.
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