Full-view-field quantitative statistical distribution representation method of precipitated phase particles in metal material

Abstract

The invention belongs to the technical field of the quantitative statistical distribution analysis of characteristic chromatograms of microstructures and precipitated phases in metal materials, and relates to a full-view-field quantitative statistical distribution representation method of precipitated phase particles in a metal material. The method comprises the following steps of electrolytic corrosion of a metallic material sample, automatic collection of a characteristic chromatogram of a metallurgical structure, automatic splicing and fusion of the characteristic chromatograms of full-view-field metallurgical structures, automatic identification and segmentation of the precipitated phase particles and quantitative distribution representation of the large-range full-view-field precipitated phase particles. According to the full-view-field quantitative statistical distribution representation method, through establishing a mathematic model, the automatic splicing and fusion of the characteristic chromatograms of the full-view-field large-area metallurgical structures in a characteristic region and the automatic segmentation and identification of the precipitated phase particles are realized; the quantitative statistical distribution representation information of the full-view-field morphology, quantity, size, distribution and the like of plentiful precipitated phases in a larger range is quickly obtained, and the method has the features of being accurate and high-efficiency and large in quantitative distribution representation information quantity, and has much more statistical representativeness compared with conventional single-view-field quantitative image analysis.

Description

technical field [0001] The invention belongs to the technical field of quantitative statistical distribution analysis of characteristic maps of microstructures and precipitated phases in metal materials, and relates to a full-field quantitative statistical distribution characterization method of precipitated phase particles in metal materials. Background technique [0002] The phases in the material that are distributed in the matrix in a discontinuous state and cannot be surrounded by other phases are collectively referred to as precipitated phases, which are precipitated in the grain or at the grain boundary and have a different crystal structure or lattice constant from the matrix structure. The new phase has an obvious interface with the matrix structure, so the precipitated phase plays a very important role in the steel, and has a great impact on the strength, toughness, plasticity, deep drawability, fatigue, wear, fracture, corrosion and many important physical and chem...

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Problems solved by technology

[0005] In view of the above technical problems, the purpose of the present invention is to provide a full-field quantitative statistical distribution characterization method of precipitated phase particles in metal materials, to eliminate the subjective error caused by manual selection of the field of view and to avoid the statistical omission of precipitated phase particles, to solve The problem of inefficiency caused by manual modification of images, while taking into account the characteristics of inhomogeneity of the material itself, provides a more representative, comprehensive, accurate and efficient characterization of the quantitative statistical distribution of precipitated phase particles in a large range of the metal material. detection means

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