Acicular Ferrite Aspect Ratio Variations in the Weld Metal of EH550 Offshore Engineering Steel Processed by MnO–SiO2–TiO2 Fluxes

Junjie Ma; Ming Zhong; Yanyun Zhang; Xiaobo Yuan; Imants Kaldre; Ishwar Kapoor; Peter Janos Szabo; Cong Wang

doi:10.1007/s11663-025-03597-6

Acicular Ferrite Aspect Ratio Variations in the Weld Metal of EH550 Offshore Engineering Steel Processed by MnO–SiO₂–TiO₂ Fluxes

Junjie Ma
, Ming Zhong
, Yanyun Zhang
, Xiaobo Yuan
, Imants Kaldre
, Ishwar Kapoor
, Peter Janos Szabo
, Cong Wang^*

^*Šī darba korespondējošais autors

Fizikas institūts

Northeastern University China
University of Warwick
Budapest University of Technology and Economics

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

1 Atsauce (Scopus)

Kopsavilkums

MnO–SiO₂–TiO₂ fluxes of known compositions have been applied to manufacture submerged arc welding of EH550 offshore engineering steel. It has been found that the volume fraction of acicular ferrite (AF) decreases slightly from 60 to 52 pct with an increase in TiO₂. Concurrently, morphologies of AFs transform from typical bulky to slender shape, resulting in a striking increase in aspect ratio from 5.62 to 8.01, boding well toward enhanced fracture toughness for the weld metal.

Oriģinālvaloda	Angļu
Lapas (no-līdz)	3264-3270
Lapu skaits	7
Žurnāls	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Sējums	56
Izdevuma numurs	4
DOIs	https://doi.org/10.1007/s11663-025-03597-6
Publikācijas statuss	Publicēts - aug. 2025

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10.1007/s11663-025-03597-6

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Citēt šo

Ma, J., Zhong, M., Zhang, Y., Yuan, X., Kaldre, I., Kapoor, I., Szabo, P. J., & Wang, C. (2025). Acicular Ferrite Aspect Ratio Variations in the Weld Metal of EH550 Offshore Engineering Steel Processed by MnO–SiO₂–TiO₂ Fluxes. Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, 56(4), 3264-3270. https://doi.org/10.1007/s11663-025-03597-6

@article{8259c8db8a474f949dd6a1410a7248d4,

title = "Acicular Ferrite Aspect Ratio Variations in the Weld Metal of EH550 Offshore Engineering Steel Processed by MnO–SiO2–TiO2 Fluxes",

abstract = "MnO–SiO2–TiO2 fluxes of known compositions have been applied to manufacture submerged arc welding of EH550 offshore engineering steel. It has been found that the volume fraction of acicular ferrite (AF) decreases slightly from 60 to 52 pct with an increase in TiO2. Concurrently, morphologies of AFs transform from typical bulky to slender shape, resulting in a striking increase in aspect ratio from 5.62 to 8.01, boding well toward enhanced fracture toughness for the weld metal.",

author = "Junjie Ma and Ming Zhong and Yanyun Zhang and Xiaobo Yuan and Imants Kaldre and Ishwar Kapoor and Szabo, \{Peter Janos\} and Cong Wang",

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

year = "2025",

month = aug,

doi = "10.1007/s11663-025-03597-6",

language = "English",

volume = "56",

pages = "3264--3270",

journal = "Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science",

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number = "4",

}

Ma, J, Zhong, M, Zhang, Y, Yuan, X, Kaldre, I, Kapoor, I, Szabo, PJ & Wang, C 2025, 'Acicular Ferrite Aspect Ratio Variations in the Weld Metal of EH550 Offshore Engineering Steel Processed by MnO–SiO₂–TiO₂ Fluxes', Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, sēj. 56, Nr. 4, lpp. 3264-3270. https://doi.org/10.1007/s11663-025-03597-6

Acicular Ferrite Aspect Ratio Variations in the Weld Metal of EH550 Offshore Engineering Steel Processed by MnO–SiO₂–TiO₂ Fluxes. / Ma, Junjie; Zhong, Ming; Zhang, Yanyun u.c.
(gadā): Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science, Sēj. 56, Nr. 4, 08.2025, lpp. 3264-3270.

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

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AU - Zhong, Ming

AU - Zhang, Yanyun

AU - Yuan, Xiaobo

AU - Kaldre, Imants

AU - Kapoor, Ishwar

AU - Szabo, Peter Janos

AU - Wang, Cong

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AB - MnO–SiO2–TiO2 fluxes of known compositions have been applied to manufacture submerged arc welding of EH550 offshore engineering steel. It has been found that the volume fraction of acicular ferrite (AF) decreases slightly from 60 to 52 pct with an increase in TiO2. Concurrently, morphologies of AFs transform from typical bulky to slender shape, resulting in a striking increase in aspect ratio from 5.62 to 8.01, boding well toward enhanced fracture toughness for the weld metal.

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