Preparation of ultralow-carbon sheet metallographic phase sample and tissue display method

Abstract

The invention discloses a preparation method of an ultralow-carbon sheet metallographic phase sample and a tissue display method, belonging to the technical field of preparation of metallographic phase samples. The preparation method of the ultralow-carbon sheet metallographic phase sample comprises four steps of embedding, grinding, polishing and corrosion of the sample. The preparation method has the advantages of being simple to operate, being capable of obtaining sheet tissue pictures with clear materials, solving the problem of difficult display of the ultralow-carbon sheet, and being applicable to sheets the metallographic phase tissue is pure ferrite.

Description

Preparation and structure display method of metallographic sample of ultra-low carbon thin plate technical field The invention belongs to the technical field of metallographic sample preparation, and in particular provides a method for preparing an ultra-low carbon sheet metallographic sample and displaying its structure. It is mainly used to prepare metallographic samples of ultra-low carbon thin plates, and is suitable for thin plates whose metallographic structure is pure ferrite. Background technique Ultra-low-carbon thin plates such as ultra-low-carbon IF steel adopt advanced smelting technology to reduce the carbon content of the steel (<0.006%), and add Ti and Nb elements to fix C and N elements, thereby obtaining pure ferrite without interstitial atoms body steel. The ferritic steel in IF has excellent deep drawing performance, excellent plastic strain ratio, good elongation and non-aging performance, which can meet the needs of the automobile industry for comp...

AI Technical Summary

Problems solved by technology

It was found that none of the ferrite grains could be fully displayed, the picture was blurred, and high-quality clear pictures could not be taken

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