CN105220146A - A kind of novel ZL302 alloy corrosion solution - Google Patents
A kind of novel ZL302 alloy corrosion solution Download PDFInfo
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- CN105220146A CN105220146A CN201410290073.9A CN201410290073A CN105220146A CN 105220146 A CN105220146 A CN 105220146A CN 201410290073 A CN201410290073 A CN 201410290073A CN 105220146 A CN105220146 A CN 105220146A
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Abstract
The invention discloses a kind of novel ZL302 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 8.6%, the hydrochloric acid of 4.3%, 3.1% nitric acid, surplus is distilled water, and addition sequence is for first to add nitric acid, add hydrochloric acid again, finally add hydrofluoric acid; Adopt the etchant solution that the present invention is made, the etching pit of ZL302 alloy can be made to become simple and fast, and save cost, be particularly suitable for the corrosion of ZL302 alloy.
Description
Technical field
The present invention relates to a kind of novel ZL302 alloy corrosion solution, belong to etchant solution technical field.
Background technology
The metallographic structure of ZL302 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 ZL302 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 novel ZL302 alloy corrosion solution, crystal boundary and the crystal grain display of the rear ZL302 alloy of corrosion are clear, to overcome the deficiencies in the prior art.
Technical scheme of the present invention:
A kind of novel ZL302 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 8.6%, the hydrochloric acid of 4.3%, 3.1% 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 ZL302 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 novel ZL302 alloy corrosion solution take mixing acid as raw material, adopts conventional solution preparation method to prepare, successively adds the hydrofluoric acid of the nitric acid of 3.1ml, the hydrochloric acid of 4.3ml and 8.6ml, then stir with glass stick in the distilled water of 84ml.
Be used for by the etchant solution made through above-mentioned steps corroding ZL302 alloy, concrete effect is shown in Fig. 1, and the effect of known ZL302 alloy corrosion solution of the present invention is better.
Claims (3)
1. a novel ZL302 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 8.6%, the hydrochloric acid of 4.3%, 3.1% 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. one according to claim 1 novel ZL302 alloy corrosion solution, 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. one according to claim 1 novel ZL302 alloy corrosion solution, is characterized in that: described mixing acid adopts conventional solution preparation method to prepare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410290073.9A CN105220146A (en) | 2014-06-26 | 2014-06-26 | A kind of novel ZL302 alloy corrosion solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410290073.9A CN105220146A (en) | 2014-06-26 | 2014-06-26 | A kind of novel ZL302 alloy corrosion solution |
Publications (1)
| Publication Number | Publication Date |
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| CN105220146A true CN105220146A (en) | 2016-01-06 |
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| CN201410290073.9A Pending CN105220146A (en) | 2014-06-26 | 2014-06-26 | A kind of novel ZL302 alloy corrosion solution |
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| CN (1) | CN105220146A (en) |
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2014
- 2014-06-26 CN CN201410290073.9A patent/CN105220146A/en active Pending
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160106 |