There are hundreds or thousands of types of titanium, with different properties and used in different scenarios. Titanium is divided into a type, a+β type, and β type according to the annealing phase group. In China, they are represented by TA, TC, and TB respectively, such as TA1, TB6, TC4, etc. The number after each grade represents the content of impurities; titanium From the strength, it can be divided into high strength (TA19), medium strength (TA7) and low strength and high plasticity (TC1); according to the use, it can be divided into heat resistance (TC6), corrosion resistance (TA9), low temperature resistance (CT20) and Functional (Ti2488) and bioengineering (TC4ELI).
Which grades of titanium alloy belong to type α?
α-type titanium alloy is one of the excellent ultra-low temperature alloys, TA4,TA5, TA6, TA7 and TA8 are all α-type titanium alloys. Among them, TA7 is the most widely used. It has medium strength and sufficient plasticity, good welding performance, and can be used below 500°C. When the content of interstitial impurity elements (oxygen, hydrogen, nitrogen, etc.) is extremely low, it can still be used at ultra-low temperatures. It has good toughness and comprehensive mechanical properties.
Which grades of titanium alloy belong to type a+β?
a+β type titanium alloy is a dual-phase alloy with good comprehensive properties, good structural stability, good toughness, plasticity and high temperature deformation properties. It can be better processed by hot pressure and can be quenched and aged to strengthen the alloy. , TC1, TC4, TC6, TC11, TC16 and TC17 all belong to a+β type titanium alloy. The strength of a+β-type titanium alloy after heat treatment is approximately 50% to 100% higher than that of the annealed state. It has high high-temperature strength and can work at temperatures of 400°C to 500°C for a long time. Its thermal stability is inferior to α-titanium alloy.
Which grades of titanium alloy belong to β type?
β-type titanium alloy is a single-phase alloy composed of β-phase solid solution. Its types include TB2, TB3, TB5, TB6, TB7, TB8, TB10, Ti40 and BTi-6554 titanium alloy, etc. β-type titanium alloy has high strength without heat treatment. After quenching and aging, the alloy is further strengthened, and the room temperature strength can reach 1372~1666 MPa; however, the thermal stability is poor and should not be used at high temperatures.
Titanium is an important structural metal developed in the 1950s. Titanium alloys have low density, high specific strength, good corrosion resistance, low thermal conductivity, non-toxic and non-magnetic, weldable, good biocompatibility, surface Due to its strong decorative properties, it is currently widely used in aviation, aerospace, chemical industry, petroleum, electric power, medical care, construction, sporting goods and other fields.