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Metallurgical and Materials Transactions B
Published in: Metallurgical and Materials Transactions B 3/2022

06-03-2022 | Brief Communication

Inclusion Evolution in Al-Killed Ca-Treated Steels at Heat Treatment Temperature In Situ Observed Using Confocal Scanning Laser Microscope

Authors: Hong Liu, Weifu Li, Changyu Ren, Lifeng Zhang, Ying Ren

Published in: Metallurgical and Materials Transactions B | Issue 3/2022

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Abstract

In situ observation and elemental mapping were combined to better understand the evolution mechanism of inclusions from CaO–MgO–Al2O3 to CaO–MgO–Al2O3–CaS in Al-killed Ca-treated steels at 1273 K to 1473 K. During the heating process, the surface layer of CaS gradually formed on the MgO–Al2O3 core in inclusions. The thickness of the surface layer increased with time. The higher heating temperature promoted the generation of the CaS phase in inclusions due to the faster element diffusion.
next article Addressing Weld Metal Compositional Variations in EH36 Shipbuilding Steel Processed by CaF2-SiO2-CaO-TiO2 Fluxes

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Metadata
Title
Inclusion Evolution in Al-Killed Ca-Treated Steels at Heat Treatment Temperature In Situ Observed Using Confocal Scanning Laser Microscope
Authors
Hong Liu
Weifu Li
Changyu Ren
Lifeng Zhang
Ying Ren
Publication date
06-03-2022
Publisher
Springer US
Published in
Metallurgical and Materials Transactions B / Issue 3/2022
Print ISSN: 1073-5615
Electronic ISSN: 1543-1916
DOI
https://doi.org/10.1007/s11663-022-02472-y

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