Morphology Control of Metal Pool and Eutectic Carbides in Electroslag Remelted M2 HSS with an External Axial Static Magnetic Field

This study investigates the influence of a superimposed axial static magnetic field (ASMF) on the morphology of metal pool and eutectic carbides (ECs) in electroslag remelted M2 high-speed steel (HSS). The application of ASMF caused the metal pool to become shallower, and the solidified structure to...

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Main Authors: Xuhui Zhao, Zhonghao Sun, Zhibin Xia, Chunmei Liu, Zhe Shen, Biao Ding, Tianxiang Zheng, Yifeng Guo, Qiang Li, Yunbo Zhong
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/13/5/912
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author Xuhui Zhao
Zhonghao Sun
Zhibin Xia
Chunmei Liu
Zhe Shen
Biao Ding
Tianxiang Zheng
Yifeng Guo
Qiang Li
Yunbo Zhong
author_facet Xuhui Zhao
Zhonghao Sun
Zhibin Xia
Chunmei Liu
Zhe Shen
Biao Ding
Tianxiang Zheng
Yifeng Guo
Qiang Li
Yunbo Zhong
author_sort Xuhui Zhao
collection DOAJ
description This study investigates the influence of a superimposed axial static magnetic field (ASMF) on the morphology of metal pool and eutectic carbides (ECs) in electroslag remelted M2 high-speed steel (HSS). The application of ASMF caused the metal pool to become shallower, and the solidified structure to expand axially, along with finer (i.e., more uniformly distributed and crystallographically oriented) ECs. Lorentz force-driven unidirectional circulation in slag pool was the primary cause of the metal pool’s morphological adjustment; this resulted in a more homogenous temperature distribution in slag pool. Thus, the heat transfer from the slag pool to the metal pool became more uniform, creating a metal pool that is shallower. Additionally, local solidification time (LST) became shorter, while the number of (Ti, V)N-Al<sub>2</sub>O<sub>3</sub> inclusions serving as heterogeneous nuclei for EC formation increased due to ASMF, enabling finer EC with more crystallographic orientations in ESR ingots.
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spelling doaj.art-adc1f3b889f34e3fa16808af7d2dd3bd2023-11-18T02:27:36ZengMDPI AGMetals2075-47012023-05-0113591210.3390/met13050912Morphology Control of Metal Pool and Eutectic Carbides in Electroslag Remelted M2 HSS with an External Axial Static Magnetic FieldXuhui Zhao0Zhonghao Sun1Zhibin Xia2Chunmei Liu3Zhe Shen4Biao Ding5Tianxiang Zheng6Yifeng Guo7Qiang Li8Yunbo Zhong9State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, ChinaState Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, ChinaState Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, ChinaState Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, ChinaState Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, ChinaState Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, ChinaState Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, ChinaState Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, ChinaState Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, ChinaState Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200444, ChinaThis study investigates the influence of a superimposed axial static magnetic field (ASMF) on the morphology of metal pool and eutectic carbides (ECs) in electroslag remelted M2 high-speed steel (HSS). The application of ASMF caused the metal pool to become shallower, and the solidified structure to expand axially, along with finer (i.e., more uniformly distributed and crystallographically oriented) ECs. Lorentz force-driven unidirectional circulation in slag pool was the primary cause of the metal pool’s morphological adjustment; this resulted in a more homogenous temperature distribution in slag pool. Thus, the heat transfer from the slag pool to the metal pool became more uniform, creating a metal pool that is shallower. Additionally, local solidification time (LST) became shorter, while the number of (Ti, V)N-Al<sub>2</sub>O<sub>3</sub> inclusions serving as heterogeneous nuclei for EC formation increased due to ASMF, enabling finer EC with more crystallographic orientations in ESR ingots.https://www.mdpi.com/2075-4701/13/5/912M2 HSSESRASMFmetal poolECs
spellingShingle Xuhui Zhao
Zhonghao Sun
Zhibin Xia
Chunmei Liu
Zhe Shen
Biao Ding
Tianxiang Zheng
Yifeng Guo
Qiang Li
Yunbo Zhong
Morphology Control of Metal Pool and Eutectic Carbides in Electroslag Remelted M2 HSS with an External Axial Static Magnetic Field
Metals
M2 HSS
ESR
ASMF
metal pool
ECs
title Morphology Control of Metal Pool and Eutectic Carbides in Electroslag Remelted M2 HSS with an External Axial Static Magnetic Field
title_full Morphology Control of Metal Pool and Eutectic Carbides in Electroslag Remelted M2 HSS with an External Axial Static Magnetic Field
title_fullStr Morphology Control of Metal Pool and Eutectic Carbides in Electroslag Remelted M2 HSS with an External Axial Static Magnetic Field
title_full_unstemmed Morphology Control of Metal Pool and Eutectic Carbides in Electroslag Remelted M2 HSS with an External Axial Static Magnetic Field
title_short Morphology Control of Metal Pool and Eutectic Carbides in Electroslag Remelted M2 HSS with an External Axial Static Magnetic Field
title_sort morphology control of metal pool and eutectic carbides in electroslag remelted m2 hss with an external axial static magnetic field
topic M2 HSS
ESR
ASMF
metal pool
ECs
url https://www.mdpi.com/2075-4701/13/5/912
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