The places that titanium alloy is better than the other allo
Titanium alloy has the following advantages compared with other metallic materials:
1.High specific strength (tensile strength / density. The tensile strength is up to 100 ~ 140kgf/mm2, and the density is only 60% of steel.
2.Good moderate temperature strength. The using temperature is several hundred degrees higher than the aluminum alloy, in the middle temperature, it can maintain the required strength, and also can work for a long time in 500 ~ 450 degrees.
3.Good corrosion resistance. In the atmosphere, the surface of titanium immediately formed a layer of uniform and dense oxide film, which can resist the erosion of a variety of medium. Titanium has good corrosion resistance in oxidizing and neutral media, and the corrosion resistance in the water, wet chlorine and chloride solution is more excellent. But in the reducing medium, such as hydrochloric acid solution, the corrosion resistance of titanium is poor.
4.Good low temperature performance. Titanium alloys, such as TA7, with very low clearance elements, can maintain a certain degree of plasticity at -253 degrees.
5.Low elastic modulus, low thermal conductivity and no ferromagnetic properties.
6.High strength
7.Poor formability and good thermoplastic.
8.Heat treatment. Different phase compositions and microstructure can be obtained by adjusting the heat treatment process of titanium alloy. It is generally considered that the small and other axial structure has good plasticity, thermal stability and fatigue strength. The needle shape structure has high strength, creep strength and fracture toughness. The mixed microstructure of equal axis and needle shape has better comprehensive performance.
1.High specific strength (tensile strength / density. The tensile strength is up to 100 ~ 140kgf/mm2, and the density is only 60% of steel.
2.Good moderate temperature strength. The using temperature is several hundred degrees higher than the aluminum alloy, in the middle temperature, it can maintain the required strength, and also can work for a long time in 500 ~ 450 degrees.
3.Good corrosion resistance. In the atmosphere, the surface of titanium immediately formed a layer of uniform and dense oxide film, which can resist the erosion of a variety of medium. Titanium has good corrosion resistance in oxidizing and neutral media, and the corrosion resistance in the water, wet chlorine and chloride solution is more excellent. But in the reducing medium, such as hydrochloric acid solution, the corrosion resistance of titanium is poor.
4.Good low temperature performance. Titanium alloys, such as TA7, with very low clearance elements, can maintain a certain degree of plasticity at -253 degrees.
5.Low elastic modulus, low thermal conductivity and no ferromagnetic properties.
6.High strength
7.Poor formability and good thermoplastic.
8.Heat treatment. Different phase compositions and microstructure can be obtained by adjusting the heat treatment process of titanium alloy. It is generally considered that the small and other axial structure has good plasticity, thermal stability and fatigue strength. The needle shape structure has high strength, creep strength and fracture toughness. The mixed microstructure of equal axis and needle shape has better comprehensive performance.
