Electrolytic corrosive agent of industrial pure titanium TA2 and electrolytic polishing corrosion method

Abstract

The invention discloses an electrolytic corrosive agent of industrial pure titanium TA2 and an electrolytic polishing corrosion method, and belongs to the field of metallographic structure detection in an industrial pure titanium physical and chemical detection technology. The method comprises the following steps: 1) grinding and cleaning pretreated industrial pure titanium TA2 to prepare a to-be-corroded test sample; and 2) performing electrolytic polishing corrosion method on the surface of the to-be-corroded test sample by the electrolytic corrosive agent. The electrolytic corrosive agent is simple in preparation, good in corrosion effect and pollution-free; and the industrial pure titanium TA2 is subjected to metallographic examination, so that the microscopic structure of the industrial pure titanium TA2 can be displayed well, and the microstructure of the TA2, the form of alpha phase, the grain boundary and the like can be reflected objectively. The electrolytic polishing corrosion method is good in effect, stable in corrosion process, good in display effect of the microstructure of the test sample after corrosion, and high in operability.

Description

technical field [0001] The invention belongs to the field of metallographic structure detection in the physical and chemical detection technology of industrial pure titanium, and specifically relates to an electrolytic etchant and an electrolytic polishing corrosion method of industrial pure titanium TA2. Background technique [0002] Titanium and its alloys have been more and more used in the aerospace field, because their density is lighter than steel, but their mechanical strength is similar to that of steel, and they have good heat resistance, so they have attracted more and more attention. Titanium and its alloys are divided into α-titanium alloys, α-β two-phase titanium alloys and β-titanium alloys according to their stable phases at room temperature. In addition, there are two categories: near-α-titanium alloys and near-β-titanium alloys. For α-titanium alloys, there are difficulties in metallographic preparation, and industrial pure titanium is even more difficult to...

AI Technical Summary

Problems solved by technology

Generally speaking, for duplex titanium alloys, the effect of this corrosive agent is very good, but the corrosion effect for industrial pure titanium TA2 is not ideal, and its structure can only be seen when the sample is well ground and polished.

Artificial manual grinding and polishing requires operators to have good work experience to prepare, but it is not easy for new experimental operators to operate

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