CN105297016A - Etchant solution for Al-4.5Mg-Zr-Si-Ce alloy - Google Patents
Etchant solution for Al-4.5Mg-Zr-Si-Ce alloy Download PDFInfo
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- CN105297016A CN105297016A CN201410289944.5A CN201410289944A CN105297016A CN 105297016 A CN105297016 A CN 105297016A CN 201410289944 A CN201410289944 A CN 201410289944A CN 105297016 A CN105297016 A CN 105297016A
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- acid
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- nitric acid
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Abstract
The invention discloses an etchant solution for Al-4.5Mg-Zr-Si-Ce alloy. Mixed acid is made by adding a certain amount of hydrofluoric acid, hydrochloric acid and nitric acid into distilled water. The mixed acid comprises, by volume, 3% of the hydrofluoric acid, 4.4% of the hydrochloric acid, 2.6% of the nitric acid, and the balance the distilled water. Besides, the nitric acid, the hydrochloric acid and the hydrofluoric acid are added in sequence. Through the manufactured etchant solution, metallographic etching of the Al-4.5Mg-Zr-Si-Ce alloy is made to be simple and fast, the cost is reduced, and the etchant solution is especially suitable for etching of the Al-4.5Mg-Zr-Si-Ce alloy.
Description
Technical field
The present invention relates to a kind of Al-4.5Mg-Zr-Si-Ce alloy corrosion solution, belong to etchant solution technical field.
Background technology
The metallographic structure of Al-4.5Mg-Zr-Si-Ce alloy is difficult to corrosion, even if out it organizes also often show incomplete in corrosion, thus usually all adopts anode overlay film to add polarisation to observe its metallographic.But this observational technique is not only consuming time, and improves cost of manufacture.Therefore how making the etching pit of Al-4.5Mg-Zr-Si-Ce 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 a kind of Al-4.5Mg-Zr-Si-Ce alloy corrosion solution, crystal boundary and the crystal grain display of the rear Al-4.5Mg-Zr-Si-Ce alloy of corrosion are clear, to overcome the deficiencies in the prior art.
Technical scheme of the present invention:
A kind of Al-4.5Mg-Zr-Si-Ce alloy corrosion solution, in distilled water, add a certain amount of hydrofluoric acid, hydrochloric acid, nitric acid makes mixing acid, with the component of volume fraction be wherein: the hydrofluoric acid of 3%, the hydrochloric acid of 4.4%, 2.6% nitric acid, surplus is distilled water, and addition sequence is for first to add nitric acid, add hydrochloric acid again, finally add hydrofluoric acid.
As preferably, described hydrofluoric acid, hydrochloric acid and nitric acid are that top grade is pure, analytical pure, chemical pure or test pure in any one.
As preferably, described mixing acid 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 alloy and crystal grain show, and metallographic structure observation can be directly used in, without the need to adopting anode overlay film and Pianguan County to observe, shorten the metallographic sample preparation time greatly, and etching time is shorter.Etchant solution of the present invention can make the etching pit of Al-4.5Mg-Zr-Si-Ce alloy become simple and quick, and saves cost.
accompanying drawing illustrates:
Fig. 1 is the corrosive effect figure of 100 times.
embodiment:
Embodiment:
A kind of Al-4.5Mg-Zr-Si-Ce alloy corrosion solution, take mixing acid as raw material, adopt conventional solution preparation method to prepare, in the distilled water of 90ml, successively add the hydrofluoric acid of the nitric acid of 2.6ml, the hydrochloric acid of 4.4ml and 3ml, then stir with glass stick.
Be used for by the etchant solution made through above-mentioned steps corroding Al-4.5Mg-Zr-Si-Ce alloy, concrete effect is shown in Fig. 1, and the effect of known Al-4.5Mg-Zr-Si-Ce alloy corrosion solution of the present invention is better.
Claims (3)
1. an Al-4.5Mg-Zr-Si-Ce alloy corrosion solution, it is characterized in that: in distilled water, add a certain amount of hydrofluoric acid, hydrochloric acid, nitric acid makes mixing acid, with the component of volume fraction be wherein: the hydrofluoric acid of 3%, the hydrochloric acid of 4.4%, 2.6% nitric acid, surplus is distilled water, and addition sequence is for first to add nitric acid, add hydrochloric acid again, finally add hydrofluoric acid.
2. a kind of Al-4.5Mg-Zr-Si-Ce alloy corrosion solution according to claim 1, is characterized in that: described hydrofluoric acid, hydrochloric acid and nitric acid are that top grade is pure, analytical pure, chemical pure or test pure in any one.
3. a kind of Al-4.5Mg-Zr-Si-Ce alloy corrosion solution according to claim 1, is characterized in that: described mixing acid adopts conventional solution preparation method to prepare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289944.5A CN105297016A (en) | 2014-06-26 | 2014-06-26 | Etchant solution for Al-4.5Mg-Zr-Si-Ce alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289944.5A CN105297016A (en) | 2014-06-26 | 2014-06-26 | Etchant solution for Al-4.5Mg-Zr-Si-Ce alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105297016A true CN105297016A (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410289944.5A Pending CN105297016A (en) | 2014-06-26 | 2014-06-26 | Etchant solution for Al-4.5Mg-Zr-Si-Ce alloy |
Country Status (1)
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| CN (1) | CN105297016A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778507A (en) * | 2020-07-07 | 2020-10-16 | 贵州大学 | Metallographic corrosive liquid and preparation method thereof |
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2014
- 2014-06-26 CN CN201410289944.5A patent/CN105297016A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111778507A (en) * | 2020-07-07 | 2020-10-16 | 贵州大学 | Metallographic corrosive liquid and preparation method thereof |
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Application publication date: 20160203 |