What are the differences between titanium alloy plates and other metals? Below, titanium plate manufacturers will share with you!

Like other metals, the recrystallization process of titanium plates is also a process of nucleation and growth of crystalline grains on the deformed structure. At this point, the lattice type does not change, but there is a change in mechanical properties.

This process is influenced by the degree of cold deformation, heating temperature, and holding time, and can be achieved through three-dimensional recrystallization of cold deformation rate, heating temperature, and recrystallized grain size. The effect of alloying elements on the recrystallization temperature of pure titanium has been described in the previous section.

Except for niobium and cobalt, commonly used alloying elements and impurity elements can increase the recrystallization temperature of titanium. The determination of recrystallization mainly adopts a combination of metallographic observation and X-ray diffraction methods. When recrystallization occurs, fine equiaxed grains appear on the deformed fiber structure.

At the same time, the diffraction ring on the X-ray back reflection Laue diagram phase begins to become disconnected spots. For heat treatable materials β Alloys can also display recrystallized structures through incomplete aging (500 ℃/4-8 hours, air cooling).

The unrecrystallized grains of titanium alloy plates after incomplete aging appear dark after corrosion. After measurement, the initial recrystallization temperature of TA2 pure titanium is about 550 ℃, TA7 titanium alloy is about 600 ℃, TC4 titanium alloy is about 700 ℃, and TB2 alloy is about 750 ℃.