CN105316684A - Novel 38CrMg2NiA alloy corrosion solution - Google Patents
Novel 38CrMg2NiA alloy corrosion solution Download PDFInfo
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- CN105316684A CN105316684A CN201410289522.8A CN201410289522A CN105316684A CN 105316684 A CN105316684 A CN 105316684A CN 201410289522 A CN201410289522 A CN 201410289522A CN 105316684 A CN105316684 A CN 105316684A
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- 38crmg2nia
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Abstract
The invention discloses a novel 38CrMg2NiA alloy corrosion solution which is prepared by adding certain amounts of hydrochloric acid, potassium hydroxide and alcohol to distilled water, wherein the volume percentage of the hydrochloric acid is 1.5%, the volume percentage of the potassium hydroxide is 4.5%, the volume percentage of the alcohol is 20% and the balanced is the distilled water. The hydrochloric acid is firstly added, the potassium hydroxide is then added and finally the alcohol is added. The corrosion solution enables metallographic corrosion of the 38CrMg2NiA alloy to be as easy and quick as that of aluminum alloy. The corrosion solution is saved in cost and is especially suitable for corrosion of the 38CrMg2NiA alloy.
Description
Technical field
The present invention relates to a kind of novel 38CrMg2NiA alloy corrosion solution, belong to etchant solution technical field.
Background technology
The metallographic structure of 38CrMg2NiA 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 38CrMg2NiA alloy become simple and fast the same as aluminium alloy 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 38CrMg2NiA alloy corrosion solution, 38CrMg2NiA alloy directly can be observed metallographic structure and not need anode aluminum coated steel and polarisation to observe, to overcome the deficiencies in the prior art after its corrosion.
Technical scheme of the present invention:
A kind of novel 38CrMg2NiA alloy corrosion solution, in distilled water, add a certain amount of hydrochloric acid, potassium hydroxide and alcohol make etchant solution, with the component of volume fraction be wherein: hydrochloric acid is 1.5%, potassium hydroxide is 4.5%, alcohol is 20%, surplus is distilled water, and addition sequence is for first to add hydrochloric acid, add potassium hydroxide again, finally add alcohol.
As preferably, described etchant solution adopts conventional solution preparation method to prepare.
Beneficial effect of the present invention:
Compared with prior art, 38CrMg2NiA alloy corrosion solution of the present invention has following feature:
1. 38CrMg2NiA alloy through its corrosion after crystal boundary and crystal grain display clear, as long as suitable operation, do not exist tissue corrode incomplete situation;
2. 38CrMg2NiA alloy is after its corrosion, can be directly used in metallographic structure and observe, and without the need to adopting anode overlay film and Pianguan County to observe, shortens the metallographic sample preparation time greatly; 3. this etchant solution is namely corrodible at normal temperatures, corrodes without the need to being heated to certain temperature again;
In sum, etchant solution of the present invention can make the etching pit of 38CrMg2NiA alloy become simple and quick, and saves cost.
accompanying drawing illustrates:
Fig. 1 is the SEM figure of 500 times of corrosive effects;
Fig. 2 is the design sketch of general corrosion liquid.
embodiment:
Embodiment:
A kind of novel 38CrMg2NiA alloy corrosion solution, take mixing acid as raw material, adopt conventional solution preparation method to prepare, in 84mL distilled water, successively add the alcohol that volume is the hydrochloric acid of 1.5mL, the hydrofluoric acid of 4.5mL and 20mL, then stir with glass stick.
Be used for by the etchant solution made through above-mentioned steps corroding 38CrMg2NiA alloy, concrete effect is shown in Fig. 1 and Fig. 2, and Fig. 2 is the corrosive effect figure using other general corrosion solution, and the effect of known etchant solution of the present invention is better.
Claims (2)
1. a novel 38CrMg2NiA alloy corrosion solution, it is characterized in that: in distilled water, add a certain amount of hydrochloric acid, potassium hydroxide and alcohol make etchant solution, with the component of volume fraction be wherein: hydrochloric acid is 1.5%, potassium hydroxide is 4.5%, alcohol is 20%, surplus is distilled water, and addition sequence is for first to add hydrochloric acid, add potassium hydroxide again, finally add alcohol.
2. one according to claim 1 novel 38CrMg2NiA alloy corrosion solution, is characterized in that: described etchant solution adopts conventional solution preparation method to prepare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289522.8A CN105316684A (en) | 2014-06-26 | 2014-06-26 | Novel 38CrMg2NiA alloy corrosion solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289522.8A CN105316684A (en) | 2014-06-26 | 2014-06-26 | Novel 38CrMg2NiA alloy corrosion solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105316684A true CN105316684A (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410289522.8A Pending CN105316684A (en) | 2014-06-26 | 2014-06-26 | Novel 38CrMg2NiA alloy corrosion solution |
Country Status (1)
| Country | Link |
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| CN (1) | CN105316684A (en) |
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2014
- 2014-06-26 CN CN201410289522.8A patent/CN105316684A/en active Pending
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160210 |
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| WD01 | Invention patent application deemed withdrawn after publication |