Sample preparation method of alloying hot-dip galvanized coating section transmission sample

A hot-dip galvanizing and alloying technology, applied in the field of transmission electron microscope analysis of alloy coatings, can solve the problems of high cost, demanding sample preparation conditions, and inability to effectively prevent the outer layer from loosening and falling off, so as to achieve the effect of preventing falling off.
CN103308362AInactive Publication Date: 2013-09-18SHOUGANG CORPORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHOUGANG CORPORATION
Publication Date
2013-09-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a sample preparation method of an alloying hot-dip galvanized coating section transmission sample, and belongs to the field of transmission electron microscope analysis of alloy coatings. The sample preparation method comprises the following steps of: precutting an alloying hot-dip galvanized plate sample, and then fixing the precut sample in a copper pipe; and then cutting the copper pipe into slices along a radial direction, and carrying out thinning, final thinning and carbon coating to finally obtain an alloying hot-dip galvanized coating section film sample suitable for observation of a transmission electron microscope. The sample preparation method disclosed by the invention can be used for relatively easily and conveniently preparing the alloying hot-dip galvanized coating section transmission electron microscope sample and effectively protecting the outer loose phase by dint of G1 glue to prevent the desquamation.
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Description

technical field

[0001] The invention belongs to the technical field of transmission electron microscope analysis of alloy coatings, and in particular relates to a sample preparation method for cross-sectional transmission samples of alloyed hot-dip galvanized layers. Background technique

[0002] Alloyed galvanized steel sheet (hereinafter referred to as GA steel sheet, Galvannealed Sheet Steel) has been more and more used in automobiles due to its excellent corrosion resistance, coating performance and welding performance, especially in Japanese series cars. The panels are basically made of GA steel plates. The so-called GA plate refers to the hot-dip galvanizing of the steel strip through the zinc solution with an aluminum content of 0.11% to 0.14%, followed by coating diffusion annealing, to obtain a zinc-iron alloy coated steel plate with a coating iron content of 7% to 15%. The zinc-iron alloy structure may contain Γ phase (Fe 3 Zn 10 -body-centered cubic structure);...

Claims

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