Characterization of 2D and 3D morphology of Al2O3 inclusion in hot rolled ultra-low carbon steel sheets

In this work, the two-dimensional (2D) morphology of Al 2 O 3 inclusions with oval and polygon was observed. The non-aqueous electrolysis extraction method was employed for extraction and characterization of the real three-dimensional (3D) morphology and size of inclusions in hot rolled ultra-low ca...

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Bibliographic Details
Published in:Ironmaking & steelmaking 2020-04, Vol.47 (4), p.437-441
Main Authors: Li, Xin, Wang, Min, Bao, Yan Ping, Xing, Li Dong, Chu, Jian Hua
Format: Article
Language:English
Subjects:
2D morphology
3D morphology
inclusion
mechanical properties
non-aqueous electrolysis extraction method
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Summary:In this work, the two-dimensional (2D) morphology of Al 2 O 3 inclusions with oval and polygon was observed. The non-aqueous electrolysis extraction method was employed for extraction and characterization of the real three-dimensional (3D) morphology and size of inclusions in hot rolled ultra-low carbon steel sheets. The integrated morphology and size of Al 2 O 3 inclusion were obtained through scanning electron microscopy along with an energy-dispersive spectrometer. Compared with 3D morphology and size of Al 2 O 3 inclusions, the 2D morphology and size are hardly accurate to describe the real morphology and size. Additionally, the mechanical property of Al 2 O 3 inclusion and steel matrices were tested by nano-indentation. The real morphology, size and mechanical properties of Al 2 O 3 inclusions will help to establish, develop and validate the damage model or criteria, as well as to improve the quality of rolled productions.
ISSN:0301-9233
1743-2812
DOI:10.1080/03019233.2018.1540520