Three-dimensional quantitative characterization of non-metallic inclusions in steels

doi:10.13251/j.issn.0254-6051.2023.03.047

Abstract

Abstract: Three-dimensional morphological observation and statistical quantification of typical inclusions as large-size Al₂O₃, MnS and oxysulfides were conducted in the ultra-low carbon steel, the free cutting steel and the pipeline steel by using optimized electrolytic extraction and automated inclusion analysis technique. Some factors affecting the three-dimensional quantitative characterization of inclusions, such as the electrolytic interfering substance, the dispersion state of inclusions and the setting of SEM parameters were discussed about how to influence three-dimensional quantitative results. Combined with two-dimensional analysis, three-dimensional morphological observation and statistical quantification of the inclusions will provide more comprehensive, reliable and accurate information.

Key words: inclusion, three-dimensional characterization, quantitative analysis, steel

CLC Number:

TG142.1

Yan Chunlian, Qin Hancheng, Qi Qige, Dai Jin, Feng Chao, Meng Yang. Three-dimensional quantitative characterization of non-metallic inclusions in steels[J]. Heat Treatment of Metals, 2023, 48(3): 280-286.

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