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Color change and defect generation mechanism of titanium tube welds
Aug 28, 2018

Titanium tube weld defects and production mechanism are as follows: When welding titanium tubes, the argon gas maintenance layer formed by the argon arc welding torch can only maintain the weld pool without the harmful effects of air, but has solidified The weld near the high temperature state and its vicinity have no protection, and the titanium pipe weld in this state and its vicinity still have a strong ability to absorb nitrogen and oxygen in the air. Oxygen is absorbed from 400 ° C, and nitrogen is absorbed from 600 ° C, while air species contain a large amount of nitrogen and oxygen.

As the oxidation level is gradually increased, the color of the weld of the titanium tube changes and the plasticity of the weld decreases. Silver white (no oxidation) golden yellow (TiO, about 250 ° C about titanium began to absorb hydrogen. Slightly oxidized) blue (Ti2O3 oxidation is slightly severe) gray (TiO2 oxidation is severe).

Titanium and titanium alloy titanium tube weld defects and production mechanism are as follows: When welding titanium tubes, the argon gas maintenance layer formed by the argon arc welding torch can only maintain the weld pool without the harmful effects of air, but has solidified The weld near the high temperature state and its vicinity have no protection, and the titanium pipe weld in this state and its vicinity still have a strong ability to absorb nitrogen and oxygen in the air. Oxygen is absorbed from 400 ° C, and nitrogen is absorbed from 600 ° C, while air species contain a large amount of nitrogen and oxygen.

As the oxidation level is gradually increased, the color of the weld of the titanium tube changes and the plasticity of the weld decreases. Silver white (no oxidation) golden yellow (TiO, about 250 ° C about titanium began to absorb hydrogen. Slightly oxidized) blue (Ti2O3 oxidation is slightly severe) gray (TiO2 oxidation is severe).

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    ADD: No.1, 2/F, Building22, Zuoan Resident Community, Gaoxin Road 36, Baoji City, Shaanxi Province, China

    TEL: +86 0917 3574578

    EMAIL: jthametal@gmail.com

    jthametal@163.com

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