CN105220151A - TC18 titanium alloy etchant solution - Google Patents
TC18 titanium alloy etchant solution Download PDFInfo
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- CN105220151A CN105220151A CN201410303363.2A CN201410303363A CN105220151A CN 105220151 A CN105220151 A CN 105220151A CN 201410303363 A CN201410303363 A CN 201410303363A CN 105220151 A CN105220151 A CN 105220151A
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- etchant solution
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- titanium alloy
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- nitric acid
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Abstract
The invention discloses a kind of TC18 titanium alloy etchant solution, in distilled water, add a certain amount of nitric acid, oxalic acid, hydrofluoric acid makes etchant solution, wherein the volume ratio of hydrofluoric acid, oxalic acid, nitric acid, distilled water is 1: 2.5: 3: 5, first nitric acid is added during preparation, add oxalic acid again, finally add hydrofluoric acid.After etchant solution corrosion of the present invention, it is clear that the crystal boundary of TC18 titanium alloy and crystal grain show, and corrosive effect is better, shorten the metallographic sample preparation time greatly, and etching time is shorter.
Description
Technical field
The present invention relates to TC18 titanium alloy etchant solution, belong to etchant solution technical field.
Background technology
The metallographic structure of TC18 titanium alloy is difficult to corrosion, even if out it organizes also often show incomplete in corrosion, thus usually all adopt anode overlay film to add polarisation to observe its metallographic, also have some common etchant solutions to corrode it, but effect is not clearly simultaneously.Therefore how making the etching pit of TC18 titanium alloy become simple and fast is the difficult problem waiting to solve.
Summary of the invention
The technical problem to be solved in the present invention: provide TC18 titanium alloy etchant solution, it is clear that the crystal boundary of the TC18 titanium alloy after corrosion and crystal grain show, and corrosive effect is good.
Technical scheme of the present invention:
TC18 titanium alloy etchant solution, in distilled water, add a certain amount of nitric acid, oxalic acid, hydrofluoric acid makes etchant solution, wherein the volume ratio of hydrofluoric acid, oxalic acid, nitric acid, distilled water is 1:2.5:3:5, first adds nitric acid during preparation, add oxalic acid again, finally add hydrofluoric acid.
Described etchant solution adopts conventional solution preparation method to prepare.
Beneficial effect of the present invention:
Compared with prior art, after etchant solution corrosion of the present invention, it is clear that the crystal boundary of TC18 titanium alloy and crystal grain show, and corrosive effect is better, shorten the metallographic sample preparation time greatly, and etching time is shorter.Etchant solution of the present invention can make the etching pit of TC18 titanium alloy become simple and quick, and saves cost.
accompanying drawing illustrates:
Fig. 1 is the corrosive effect figure of 100 times.。
embodiment:
Embodiment:
TC18 titanium alloy etchant solution, in distilled water, add a certain amount of nitric acid, oxalic acid, hydrofluoric acid makes etchant solution, wherein the volume ratio of hydrofluoric acid, oxalic acid, nitric acid, distilled water is 1:2.5:3:5, first nitric acid is added during preparation, add oxalic acid again, finally add hydrofluoric acid, then stir with glass stick.
Be used for by the etchant solution made through above-mentioned steps corroding TC18 titanium alloy, concrete effect is shown in Fig. 1, and the effect of known TC18 titanium alloy etchant solution of the present invention is better, and it is clear that crystal boundary and crystal grain show.
Claims (2)
1.TC18 titanium alloy etchant solution, it is characterized in that: in distilled water, add a certain amount of nitric acid, oxalic acid, hydrofluoric acid makes etchant solution, wherein the volume ratio of hydrofluoric acid, oxalic acid, nitric acid, distilled water is 1:2.5:3:5, first nitric acid is added during preparation, add oxalic acid again, finally add hydrofluoric acid.
2. TC18 titanium alloy etchant solution according to claim 1, is characterized in that: described etchant solution adopts conventional solution preparation method to prepare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303363.2A CN105220151A (en) | 2014-06-30 | 2014-06-30 | TC18 titanium alloy etchant solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410303363.2A CN105220151A (en) | 2014-06-30 | 2014-06-30 | TC18 titanium alloy etchant solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105220151A true CN105220151A (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410303363.2A Pending CN105220151A (en) | 2014-06-30 | 2014-06-30 | TC18 titanium alloy etchant solution |
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| CN (1) | CN105220151A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988599A (en) * | 2017-12-06 | 2018-05-04 | 航天精工股份有限公司 | A kind of metallographic etching agent for distinguishing titanium alloy condition of heat treatment |
| CN108441866A (en) * | 2018-05-10 | 2018-08-24 | 河北钢研德凯科技有限公司 | The corrosion cleaning solution of alloy-steel casting |
-
2014
- 2014-06-30 CN CN201410303363.2A patent/CN105220151A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988599A (en) * | 2017-12-06 | 2018-05-04 | 航天精工股份有限公司 | A kind of metallographic etching agent for distinguishing titanium alloy condition of heat treatment |
| CN108441866A (en) * | 2018-05-10 | 2018-08-24 | 河北钢研德凯科技有限公司 | The corrosion cleaning solution of alloy-steel casting |
| CN108441866B (en) * | 2018-05-10 | 2020-07-21 | 河北钢研德凯科技有限公司 | Corrosion cleaning fluid for alloy castings |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160106 |
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| WD01 | Invention patent application deemed withdrawn after publication |