A metallographic method for displaying the three-dimensional structure of the silicon-rich phase in the aluminum-silicon coating

A three-dimensional structure, aluminum-silicon technology, which is applied in the field of displaying the three-dimensional structure of the silicon-rich phase in the aluminum-silicon coating by the metallographic method, can solve the problems of the phase structure of the aluminum-coated silicon coating remaining, and no three-dimensional phase structure is found, and achieve low detection costs Effect
CN112945688BActive Publication Date: 2022-08-09TANGSHAN IRON & STEEL GROUP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TANGSHAN IRON & STEEL GROUP
Publication Date
2022-08-09

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Abstract

The invention belongs to the technical field of metal coating detection, and provides a method for displaying the three-dimensional structure of a silicon-rich phase in an aluminum-silicon coating by a metallographic method, including sample preparation, chemical corrosion and microscope observation. Coated steel plate, cut a part of it as a sample, and then inlaid and polished the sample in turn; (2) Chemical corrosion: put the sample prepared in step (1) into a corrosion solution for chemical corrosion, and the corrosion solution is made of an aqueous hydrochloric acid solution. (3) Microscope observation: After the chemical corrosion is completed, rinse the sample, dry it, and observe it with a ZISS metallographic microscope. The method provided by the invention can obtain a complete and clear three-dimensional structure of the silicon-rich phase, can fully display the growth of the silicon-rich phase, and has the characteristics of low detection cost, rapidity and simplicity.
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Description

technical field

[0001] The invention belongs to the technical field of metal coating detection, and in particular relates to a method for displaying the three-dimensional structure of a silicon-rich phase in an aluminum-silicon coating by a metallographic method. Background technique

[0002] Due to the good anti-oxidation and anti-corrosion properties of aluminum-silicon-coated steel sheets, the research and development and application of its products are becoming more and more extensive, and the requirements for its physical properties are also increasing. At present, the research on the phase structure of aluminized silicon coating mainly stays on the display of the phase structure of the plane and cross-section, and no method for displaying the three-dimensional phase structure has been found. Studying the three-dimensional morphology of the phase structure can better study the growth of the phase, and can also directly reflect its production process.

[0003] The metho...

Claims

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