TiN Particles and Clusters during Ladle Treatments of Ni-based Alloy 825 using Different Stirring Modes

Kellner, Hans; Karasev, Andrey; Sundqvist, Olle; Jönsson, Pär G.

doi:10.2355/isijinternational.isijint-2017-355

Cited by 2 publications

(1 citation statement)

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“…[4][5][6][7][8][9] Moreover, there is a concept, inclusion engineering, that deals with the control of the amount, morphology, size distribution, and composition of nonmetallic inclusions formed in the liquid steel during refining and solidification. [10] To better understand the mechanism of inclusion agglomeration behavior, the experimental studies using both in-situ [11][12][13][14][15] and ex-situ [16][17][18][19] methodologies have been performed. However, the current in-situ characterization research by high-temperature confocal laser scanning microscope (HT-CLSM) limits the inclusion behavior on the liquid steel surface or named steel-gas interface, which is a much different mechanism with the case of inclusion agglomeration at the bulk of the liquid steel.…”

Section: Introductionmentioning

confidence: 99%

Assessment of a Simplified Correlation Between Wettability Measurement and Dispersion/Coagulation Potency of Oxide Particles in Ferrous Alloy Melt

Nakajima

Jönsson

2019

Metall Mater Trans B

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This article seeks to demonstrate a direct and simplified correlation between the measurement of the wettability and the agglomeration potency of the inclusion particles in liquid ferrous alloy. The established methodology has been validated by the agreement between the calculated coagulation coefficient of Al 2 O 3 particles and the experimental data in the open literature. Subsequently, the coagulation coefficient of Al 2 O 3 , MgO, and Ti 2 O 3 particles in ferrous alloy melts was evaluated quantitatively by the proposed method using the actual experimental data of contact angle and surface tension. Meanwhile, the effect of the matrix composition has been investigated by comparing the Hamaker constant and coagulation coefficient between Ti 2 O 3 / pure iron and Ti 2 O 3 /low-carbon steel systems. It is noted that the change of coagulation coefficient associated with the contact angle is caused by the formation of a new phase at the oxide/metal interface at the high temperature. The present work aims to provide a deep understanding of the connection between inclusion motion behavior in the liquid alloy and the high temperature interfacial phenomenon.

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Section: Introductionmentioning

confidence: 99%

Assessment of a Simplified Correlation Between Wettability Measurement and Dispersion/Coagulation Potency of Oxide Particles in Ferrous Alloy Melt

Nakajima

Jönsson

2019

Metall Mater Trans B

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Analysis of Non-Metallic Inclusions by Means of Chemical and Electrolytic Extraction—A Review

Babu

Michelic

2022

Materials

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Research on non-metallic inclusions is of critical importance, as they have a significant influence on the final properties of steel products. In this regard, the 3D analysis of inclusions isolated from steel samples allows for the accurate measurement of their chemical composition, without the influence of the steel matrix, and detailed insights into their morphology. Inclusions can be extracted from the steel sample matrix using extraction methods followed by their measurement with scanning electron microscopy. Extraction methods can be broadly classified into chemical and electrolytic analyses. There have been numerous studies documenting the different extraction methods for the isolation of different inclusion types in a range of steels. The focus of this paper is to briefly review their developments over a century up until the present period. The most relevant methods and the corresponding steels and observed inclusions are also summarized in a table which could be a useful reference for researchers in this field.

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TiN Particles and Clusters during Ladle Treatments of Ni-based Alloy 825 using Different Stirring Modes

Cited by 2 publications

References 22 publications

Assessment of a Simplified Correlation Between Wettability Measurement and Dispersion/Coagulation Potency of Oxide Particles in Ferrous Alloy Melt

Assessment of a Simplified Correlation Between Wettability Measurement and Dispersion/Coagulation Potency of Oxide Particles in Ferrous Alloy Melt

Analysis of Non-Metallic Inclusions by Means of Chemical and Electrolytic Extraction—A Review

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