CN105220153A - A kind of novel 45CrNi4VA steel corrosion solution - Google Patents
A kind of novel 45CrNi4VA steel corrosion solution Download PDFInfo
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- CN105220153A CN105220153A CN201410289521.3A CN201410289521A CN105220153A CN 105220153 A CN105220153 A CN 105220153A CN 201410289521 A CN201410289521 A CN 201410289521A CN 105220153 A CN105220153 A CN 105220153A
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- acid
- 45crni4va
- alcohol
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- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- ing And Chemical Polishing (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of novel 45CrNi4VA steel corrosion solution, comprise mixing acid, described mixing acid is made for adding a certain amount of hydrofluoric acid, hydrochloric acid and alcohol in distilled water, with the component of volume fraction be wherein: the hydrofluoric acid of 4.5%, the hydrochloric acid of 8%, 2% alcohol, surplus is distilled water, and addition sequence is for first to add nitric acid, then add hydrochloric acid, finally add alcohol.The etchant solution that the present invention is made, can make the etching pit of 45CrNi4VA steel become simple and fast, and saves cost, is particularly suitable for the corrosion of 45CrNi4VA steel.
Description
Technical field
The present invention relates to a kind of novel 45CrNi4VA steel corrosion solution, belong to etchant solution technical field.
Background technology
The metallographic structure of 45CrNi4VA steel 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 45CrNi4VA steel 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: a kind of novel 45CrNi4VA steel corrosion solution is provided, 45CrNi4VA steel directly can be observed metallographic structure and not need anode aluminum coated steel and polarisation to observe after its corrosion, becomes simple and quick to make the etching pit of 45CrNi4VA steel.
Technical scheme of the present invention:
A kind of novel 45CrNi4VA steel corrosion solution, comprise mixing acid, described mixing acid is made for adding a certain amount of hydrofluoric acid, hydrochloric acid and alcohol in distilled water, with the component of volume fraction be wherein: the hydrofluoric acid of 4.5%, the hydrochloric acid of 8%, 2% alcohol, surplus is distilled water, and addition sequence is for first to add nitric acid, then add hydrochloric acid, finally add alcohol.
As preferably, described mixing acid adopts conventional solution preparation method to prepare.
Beneficial effect of the present invention:
Compared with prior art, it is clear to be shown by the crystal boundary after etchant solution corrosion of the present invention and crystal grain, and can be directly used in metallographic structure observation, without the need to adopting anode overlay film and Pianguan County to observe, shortens the metallographic sample preparation time greatly.Etchant solution of the present invention can make the etching pit of 45CrNi4VA steel 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 45CrNi4VA steel corrosion solution take mixing acid as raw material, adopts conventional solution preparation method to prepare, successively adds the alcohol of the nitric acid of 4.5ml, the hydrochloric acid of 8ml and 2ml, then stir with glass stick in the distilled water of 85ml.
Be used for by the etchant solution made through above-mentioned steps corroding 45CrNi4VA steel, concrete effect is shown in Fig. 1, and the effect of known fine aluminium etchant solution of the present invention is better.
Alcohol used in the present invention is industrial spirit.
Claims (2)
1. a novel 45CrNi4VA steel corrosion solution, comprise mixing acid, it is characterized in that: described mixing acid is made for adding a certain amount of hydrofluoric acid, hydrochloric acid and alcohol in distilled water, with the component of volume fraction be wherein: the hydrofluoric acid of 4.5%, the hydrochloric acid of 8%, 2% alcohol, surplus is distilled water, and addition sequence is for first to add nitric acid, then add hydrochloric acid, finally add alcohol.
2. one according to claim 1 novel 45CrNi4VA steel 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 |
|---|---|---|---|
| CN201410289521.3A CN105220153A (en) | 2014-06-26 | 2014-06-26 | A kind of novel 45CrNi4VA steel corrosion solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289521.3A CN105220153A (en) | 2014-06-26 | 2014-06-26 | A kind of novel 45CrNi4VA steel corrosion solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105220153A true CN105220153A (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410289521.3A Pending CN105220153A (en) | 2014-06-26 | 2014-06-26 | A kind of novel 45CrNi4VA steel corrosion solution |
Country Status (1)
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| CN (1) | CN105220153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245029A (en) * | 2016-07-08 | 2016-12-21 | 西安热工研究院有限公司 | Aggressive agent that the lasting sample tissue of Super304H austenitic stainless steel shows, preparation method and application method |
-
2014
- 2014-06-26 CN CN201410289521.3A patent/CN105220153A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245029A (en) * | 2016-07-08 | 2016-12-21 | 西安热工研究院有限公司 | Aggressive agent that the lasting sample tissue of Super304H austenitic stainless steel shows, preparation method and application method |
| CN106245029B (en) * | 2016-07-08 | 2018-12-04 | 西安热工研究院有限公司 | Aggressive agent that the lasting sample tissue of Super304H austenitic stainless steel is shown, preparation method and application method |
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Application publication date: 20160106 |