As an integral part of structural alloys, titanium alloys continue to benefit mankind in various fields.

So far, the global annual output of titanium alloys has reached more than 40,000 tons. Countries around the world are constantly researching and developing various uses of titanium alloys, and are committed to entering the civilian industry with huge market potential.

Here comes the question. Do you know the classification of titanium alloys? What are their characteristics? The chemical nature of titanium is so lively, how complicated is its processing technology?

兄弟 Three brothers of titanium alloy

Titanium alloys have three kinds of matrix structures (titanium alloy structures with different structures). Titanium alloys are also divided into the following three categories: α alloys, (α β) alloys and β alloys. China is represented by TA, TC and TB.

Α titanium alloy-code TA

Single-phase alloy (composed of an alloy), whether at ordinary temperature or higher temperature, the structure is stable and the oxidation resistance is strong. In the temperature of 500 ℃ ~ 600 ℃, still maintain its strength and creep resistance.

β titanium alloy-code TC

Single-phase alloy (composed of an alloy) has higher strength. The alloy is further strengthened after quenching and aging, but its thermal stability is poor, so it should not be used at high temperatures.

α β titanium alloy-code TB

It is a dual-phase alloy (composed of two alloys), with good comprehensive properties, good structural stability, good toughness, plasticity, and high-temperature deformation properties. It can perform hot-pressure processing, quenching, aging Alloy strengthening. Its thermal stability is inferior to alpha titanium alloy.

Titanium alloys can be divided into heat-resistant alloys, high-strength alloys, corrosion-resistant alloys (titanium-molybdenum, titanium-palladium alloys, etc.), low-temperature alloys, and special-function alloys (titanium-iron hydrogen storage materials and titanium-nickel memory alloys), etc. .

Titanium alloy processing technology

Vacuum melting technology

Using a vacuum smelting furnace for smelting alloy steel, the titanium alloy is heated and melted into a liquid by the vortex generated in the furnace. The advantage is that the entire processing process is performed in a vacuum. .

Titanium alloy special processing technologies include laser processing technology, electron beam processing technology, ion beam and plasma processing technology, and electrical processing technology. Depending on cost, these technologies are used to process titanium alloys.

Surface treatment

Process method of artificially forming a surface layer on the surface of the base titanium alloy material with a mechanical, physical and chemical property different from that of the base.

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