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A kind of etchant suitable for deposited state gh3536 alloy and its corrosion method

A technology of GH3536 and etchant, which is applied in the field of metallographic corrosion, can solve the problems of long corrosion time, high corrosion difficulty, and affecting corrosion efficiency, and achieve the effect of high-efficiency corrosion

Active Publication Date: 2021-11-30
无锡飞而康新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the traditional etchant is used in SLM technology, although it can corrode the structure after heat treatment of the GH3536 alloy manufactured by SLM, it has the problems of difficult corrosion and long corrosion time, which affects the corrosion efficiency.

Method used

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  • A kind of etchant suitable for deposited state gh3536 alloy and its corrosion method
  • A kind of etchant suitable for deposited state gh3536 alloy and its corrosion method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The sample is the deposited GH3536 alloy prepared by SLM. Grinding and polishing are carried out by conventional methods before etching.

[0037] The formula of the corrosive agent is 50ml of distilled water: 180ml of analytical pure hydrochloric acid: 15g of chromium oxide.

[0038] The corrosive agent configuration steps include: accurately weigh the chromium oxide with a balance, pour the solid chromium oxide into the plastic reagent storage bottle, then accurately weigh the quantitative distilled water with the measuring cylinder and pour it into the plastic reagent storage bottle, and then use the measuring cylinder in the fume hood to accurately Weigh the quantitative hydrochloric acid, and slowly pour it into the plastic reagent storage bottle, and finally shake the mixed solution in the plastic reagent storage bottle to ensure that the chromium oxide is dissolved as much as possible (in the actual process, there will be residual solids in the chromium oxide), an...

Embodiment 2

[0042] The sample is the deposited GH3536 alloy prepared by SLM. Grinding and polishing are carried out by conventional methods before etching.

[0043] The corrosive agent formula is 60ml of distilled water: 150ml of analytical pure hydrochloric acid: 15g of chromium oxide.

[0044] The corrosive agent configuration steps include: accurately weigh the chromium oxide with a balance, pour the solid chromium oxide into the plastic reagent storage bottle, then accurately weigh the quantitative distilled water with the measuring cylinder and pour it into the plastic reagent storage bottle, and then use the measuring cylinder in the fume hood to accurately Weigh the quantitative hydrochloric acid, and slowly pour it into the plastic reagent storage bottle, and finally shake the mixed solution in the plastic reagent storage bottle to ensure that the chromium oxide is dissolved as much as possible (in the actual process, there will be residual solids in the chromium oxide), and place...

Embodiment 3

[0048] The sample is the deposited GH3536 alloy prepared by SLM. Grinding and polishing are carried out by conventional methods before etching.

[0049] The formula of the corrosive agent is 70ml of distilled water: 180ml of analytical pure hydrochloric acid: 20g of chromium oxide.

[0050] The corrosive agent configuration steps include: accurately weigh the chromium oxide with a balance, pour the solid chromium oxide into the plastic reagent storage bottle, then accurately weigh the quantitative distilled water with the measuring cylinder and pour it into the plastic reagent storage bottle, and then use the measuring cylinder in the fume hood to accurately Weigh the quantitative hydrochloric acid, and slowly pour it into the plastic reagent storage bottle, and finally shake the mixed solution in the plastic reagent storage bottle to ensure that the chromium oxide is dissolved as much as possible (in the actual process, there will be residual solids in the chromium oxide), an...

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Abstract

The present application relates to an etchant suitable for as-deposited GH3536 alloy and an etching method thereof. The corrosive agent is prepared by including the following components in proportion: 50-150ml of water: 100-200ml of analytically pure hydrochloric acid: 10-30g of chromium oxide, and the mass concentration of analytically pure hydrochloric acid is 36-38%. The etchant and etching method of the present application are capable of efficiently etching the as-deposited GH3536 alloy.

Description

technical field [0001] The present application generally relates to the field of metallographic corrosion, and specifically relates to a corrosion agent suitable for deposited GH3536 alloy and a corrosion method thereof. Background technique [0002] GH3536 is a Ni-Cr-Fe based solid solution strengthening deformed superalloy, and the main solid solution strengthening elements are Mo, W and Cr. The alloy has good high-temperature mechanical properties, good oxidation resistance and corrosion resistance, and good cold and hot processing and welding properties below 900 °C. The alloy has been widely used in foreign aero-engines and civil industries, but in my country it is mainly used to manufacture high-temperature components such as aero-engine combustion chambers, honeycomb structures, and diffusers. In the field of selective laser melting technology (SLM), GH3536 alloy has been used in SLM technology due to its excellent formability, and has shown the advantages of being a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25F3/02G01N1/32
CPCC25F3/02G01N1/32B22F10/68B22F10/66B22F10/62B22F2999/00B22F10/28B22F2003/247B22F2003/241B22F2202/06B22F3/24B33Y40/20C22C1/0433Y02P10/25
Inventor 段修涛计霞楚瑞坤汪承杰陈志茹高桦许停停秦贤邹荣堃
Owner 无锡飞而康新材料科技有限公司
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