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2011•Journal of Anhui University of TechnologyRequires access

Research on Non-metallic Inclusions in 304 Austenitic Stainless Steel Ingot

Li Zhou

Open publisher page 1 citations

Abstract

The type and the amount of the non-metallic inclusions in 304 stainless steel ingot were investigated,with a tracer used to find out the origin of inclusion.The results show that most of the micro inclusions are Al2O3-SiO2-CaO system inclusions,the micro inclusions(5 μm) coexit amount of MgO-Al2O3 spinel inclusions;the macro inclusion is main to have two types of compound admixture,respectively is the type of Al2O3-SiO2-CaO,the type of Al2O3-SiO2;one of the main source of the non-matallic inclusions is the slag for the refractory corrosion in the molten steel during tapping;ladle lining affects slightly.

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What this paper is about

The type and the amount of the non-metallic inclusions in 304 stainless steel ingot were investigated,with a tracer used to find out the origin of inclusion.The results show that most of the micro inclusions are Al2O3-SiO2-CaO system inclusions,the micro inclusions(5 μm) coexit amount of MgO-Al2O3 spinel inclusions;the macro inclusion is main to have two types of compound admixture,respectively is the type of Al2O3-SiO2-CaO,the type of Al2O3-SiO2;one of the main source of the non-matallic inclusions is the slag for the refractory corrosion in the molten steel during tapping;ladle lining affects slightly.

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Available abstract

The type and the amount of the non-metallic inclusions in 304 stainless steel ingot were investigated,with a tracer used to find out the origin of inclusion.The results show that most of the micro inclusions are Al2O3-SiO2-CaO system inclusions,the micro inclusions(5 μm) coexit amount of MgO-Al2O3 spinel inclusions;the macro inclusion is main to have two types of compound admixture,respectively is the type of Al2O3-SiO2-CaO,the type of Al2O3-SiO2;one of the main source of the non-matallic inclusions is the slag for the refractory corrosion in the molten steel during tapping;ladle lining affects slightly.

Key concepts: Ingot, Metallurgy, Materials science, Ladle, Non-metallic inclusions, Spinel, Inclusion (mineral), Austenite

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