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Corrosive agent suitable for deposited GH3536 alloy and corrosion method thereof

A GH3536, etchant technology, applied in the field of metallographic corrosion, can solve the problems of long corrosion time, difficult corrosion, affecting corrosion efficiency, etc., and achieve the effect of efficient corrosion

Active Publication Date: 2020-01-10
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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  • Corrosive agent suitable for deposited GH3536 alloy and corrosion method thereof
  • Corrosive agent suitable for deposited GH3536 alloy and corrosion method thereof

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 a measuring cylinder and pour it into the plastic reagent storage bottle, and then use the measuring cylinder in the fume hood to accurately Weigh 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 plac...

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 a measuring cylinder and pour it into the plastic reagent storage bottle, and then use the measuring cylinder in the fume hood to accurately Weigh 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 it fo...

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 invention relates to a corrosive agent suitable for a deposited GH3536 alloy and a corrosion method thereof. The corrosive agent is prepared from the following components of, in proportion to, 50-150 ml of water, 100-200 ml of analytical pure hydrochloric acid, and 10-30 g of chromium oxide, wherein the mass concentration of pure hydrochloric acid is 36%-38%. The corrosive agent and the corrosion method can efficiently corrode the deposited GH 3536 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 Applications(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