Cold-roll steel sheet texture measurement method

Abstract

The invention discloses a cold-roll steel sheet texture measurement method which comprises the following steps: S1, treating the surface of a cold-roll steel sheet so as to obtain a test sample 1; S2,measuring the <111> / / ND texture ratio within the maximum orientation deviation of 20 degrees so as to obtain a result A; S3, performing argon ion etching on a test sample 1 to be tested so as to obtain a test sample 2 to be tested; S4, detecting a surface argon ion etching depth T of the test sample 2 to be tested; and S5, measuring a <111> / / ND texture ratio within the maximum orientation deviation of 20 degrees so as to obtain a result B, and repeating steps S3 to S5 till the quotient of the absolute value of BN-AN divided by AN is greater than or equal to 50%, thereby obtaining a final argon ion etching depth TN, that is, the depth of a cold-roll steel sheet surface texture. By adopting the method disclosed by the invention, the depth of a micro-grade characteristic texture of the surface layer of a cold-roll sheet that the crystal orientation has differences from that of the central part of the cold-roll sheet can be accurately measured.

Description

technical field [0001] The invention relates to the technical field of material testing, in particular to a method for measuring the texture of cold-rolled steel plates. Background technique [0002] Texture occurs when the orientations of individual grains of a polycrystalline material come together. The texture of cold-rolled steel sheet has a great influence on the deformation ability and deep-drawing performance of cold-rolled steel sheet, and it needs to be studied quantitatively. The texture of cold-rolled steel sheets is affected by processes such as hot-rolling, cold-rolling, and annealing processes, and there may be texture changes along the thickness of the plate, especially the texture type of the surface layer may be very different from that of the core, so Quantitative detection of the depth of the surface characteristic texture is required. [0003] At present, the commonly used methods for detecting texture are X-ray photoelectron spectroscopy and electron b...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a method for measuring the texture of the cold-rolled steel plate, which solves the technical problem that the texture of the surface of the steel plate cannot be measured within a few microns in the prior art, and can measure the crystal orientation of the surface layer of the cold-rolled steel plate and the core Accurately measure the depth of textured micron-scale features

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