Optimizing Weldability of EH550 Offshore Engineering Steel via TiO2-Assisted Element Transfer During Submerged Arc Welding

Junjie Ma; Yanyun Zhang; Ming Zhong; Imants Kaldre; Cong Wang

doi:10.1007/s11663-025-03855-7

Optimizing Weldability of EH550 Offshore Engineering Steel via TiO₂-Assisted Element Transfer During Submerged Arc Welding

Junjie Ma
, Yanyun Zhang
, Ming Zhong
, Imants Kaldre
, Cong Wang^*

^*Corresponding author for this work

Institute of Physics

Northeastern University China
Wuhan University of Science and Technology

Research output: Contribution to journal › Article › peer-review

Abstract

MnO–SiO₂–TiO₂ fluxes have been designed to improve weldability for EH550 offshore engineering steel. It has been demonstrated that 40 mass pct TiO₂ enables the weld metal to possess a yield strength of 593 MPa and an impact energy of 58.9 J. Such enhancement is directly attributed to TiO₂-assisted element transfer, which suppresses Mn and Si contents while simultaneously reduces C loss by 0.0116 mass pct. Underlying mechanisms responsible for optimal weldability have been postulated.

Original language	English
Pages (from-to)	6176-6182
Number of pages	7
Journal	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume	56
Issue number	6
DOIs	https://doi.org/10.1007/s11663-025-03855-7
Publication status	Published - Dec 2025

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10.1007/s11663-025-03855-7

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title = "Optimizing Weldability of EH550 Offshore Engineering Steel via TiO2-Assisted Element Transfer During Submerged Arc Welding",

abstract = "MnO–SiO2–TiO2 fluxes have been designed to improve weldability for EH550 offshore engineering steel. It has been demonstrated that 40 mass pct TiO2 enables the weld metal to possess a yield strength of 593 MPa and an impact energy of 58.9 J. Such enhancement is directly attributed to TiO2-assisted element transfer, which suppresses Mn and Si contents while simultaneously reduces C loss by 0.0116 mass pct. Underlying mechanisms responsible for optimal weldability have been postulated.",

author = "Junjie Ma and Yanyun Zhang and Ming Zhong and Imants Kaldre and Cong Wang",

note = "Publisher Copyright: {\textcopyright} The Minerals, Metals \& Materials Society and ASM International 2025.",

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doi = "10.1007/s11663-025-03855-7",

language = "English",

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Optimizing Weldability of EH550 Offshore Engineering Steel via TiO₂-Assisted Element Transfer During Submerged Arc Welding. / Ma, Junjie; Zhang, Yanyun; Zhong, Ming et al.
In: Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, Vol. 56, No. 6, 12.2025, p. 6176-6182.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Optimizing Weldability of EH550 Offshore Engineering Steel via TiO2-Assisted Element Transfer During Submerged Arc Welding

AU - Ma, Junjie

AU - Zhang, Yanyun

AU - Zhong, Ming

AU - Kaldre, Imants

AU - Wang, Cong

PY - 2025/12

Y1 - 2025/12

N2 - MnO–SiO2–TiO2 fluxes have been designed to improve weldability for EH550 offshore engineering steel. It has been demonstrated that 40 mass pct TiO2 enables the weld metal to possess a yield strength of 593 MPa and an impact energy of 58.9 J. Such enhancement is directly attributed to TiO2-assisted element transfer, which suppresses Mn and Si contents while simultaneously reduces C loss by 0.0116 mass pct. Underlying mechanisms responsible for optimal weldability have been postulated.

AB - MnO–SiO2–TiO2 fluxes have been designed to improve weldability for EH550 offshore engineering steel. It has been demonstrated that 40 mass pct TiO2 enables the weld metal to possess a yield strength of 593 MPa and an impact energy of 58.9 J. Such enhancement is directly attributed to TiO2-assisted element transfer, which suppresses Mn and Si contents while simultaneously reduces C loss by 0.0116 mass pct. Underlying mechanisms responsible for optimal weldability have been postulated.

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U2 - 10.1007/s11663-025-03855-7

DO - 10.1007/s11663-025-03855-7

M3 - Article

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JO - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science

JF - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science

IS - 6

ER -

Optimizing Weldability of EH550 Offshore Engineering Steel via TiO₂-Assisted Element Transfer During Submerged Arc Welding

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