Effect of flux on the microstructural and tensile properties of IS 2062-E450 structural steel by submerged arc welding

被引：0

作者：

Kumar, Himanshu ^{[1
]}

Misra, Anurag ^{[1
]}

Shiva, S. ^{[2
]}

机构：

[1] Indian Inst Technol, Ctr Strateg & Sustainable Infrastruct, Jammu 181221, Jammu & Kashmir, India

[2] Indian Inst Technol Jammu, Lab Adv Mfg & Proc, Jammu, India

来源：

MATERIALS LETTERS | 2025年 / 395卷

关键词：

E450 structural steel; EM12K filler; Submerged arc welding; Flux; Microstructure; Tensile properties; TOUGHNESS;

D O I：

10.1016/j.matlet.2025.138685

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study investigates the role of flux composition in determining the microstructure and mechanical behaviour of welds. Submerged arc welding was used to weld E450 structural steel plates with EM12K filler wire to test the microstructure and tensile characteristics of two fluxes, GEE505 and GEE541. Microstructural investigation revealed ferrite and pearlite in EM12K welds. Electron backscattered diffraction and transmission electron microscopy showed flux-derived micro inclusions in weld metal. These inclusions significantly influence the welded joints' mechanical properties. Using GEE541 flux with EM12K weld improves the yield strength, tensile strength, and microhardness by 9 %, 9 % and 13 %, respectively. Moreover, the percentage elongation and impact toughness decreased by 22.72 % and 39 %, respectively. It is attributed to specific mechanisms such as grain refinement, inclusion strengthening and higher grain average misorientation. These findings reveal the critical role of flux composition in determining weld quality and mechanical properties of EM12K weld.

引用

页数：4

共 16 条

[1]

[Anonymous], 2024, ASTM E8/E8M-24 Test Methods for Tension Testing of Metallic Materials

[2]

[Anonymous], 2024, ASTM E23-24

[3] Optimization of agglomerated fluxes in submerged arc welding [J].

Choudhary, Siddharth ;

Shandley, Rohit ;

Kumar, Aditya .

MATERIALS TODAY-PROCEEDINGS, 2018, 5 (02) :5049-5057

[4] Grain misorientation induced low-temperature impact toughness deterioration and its deformation mechanism of Ti6321 titanium alloy [J].

Ding, Laifa ;

Wang, Haiyan ;

Zeng, Zhibin ;

Qin, Binhao ;

Vladyslav, Khaskin ;

Chen, Lijia ;

Zhang, Yupeng .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2024, 914

[5] Study of the Microstructure and Mechanical Property Relationships of Gas Metal Arc Welded Dissimilar Protection 600T, DP450 and S275JR Steel Joints [J].

Elmas, Mustafa ;

Kocar, Oguz ;

Anac, Nergizhan .

CRYSTALS, 2024, 14 (05)

[6] The carbon content effect on hot-rolled C-Mn micro-alloyed E410 structural steel [J].

Khajuria, Akhil ;

Shiva, S. ;

Misra, Anurag .

VACUUM, 2023, 212

[7] The effects of grain-refining precipitates on the development of toughness in 4340 steel [J].

Leap, MJ ;

Wingert, JC .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1999, 30 (01) :93-114

[8] Effect of inclusion size on the nucleation of acicular ferrite in welds [J].

Lee, TK ;

Kim, HJ ;

Kang, BY ;

Hwang, SK .

ISIJ INTERNATIONAL, 2000, 40 (12) :1260-1268

[9] Effect of boundaries on toughness in high-strength low-alloy steels from the view of crystallographic misorientation [J].

Li, Xiucheng ;

Zhao, Jingxiao ;

Wang, Jingliang ;

Wang, Xuelin ;

Liu, Shilong ;

Shang, Chengjia .

MATERIALS LETTERS, 2020, 259

[10] Submerged arc additive manufacturing (SAAM) of low-carbon steel: Effect of in-situ intrinsic heat treatment (IHT) on microstructure and mechanical properties [J].

Li, Yuhang ;

Wu, Shaojie ;

Li, Hongli ;

Dong, Yilun ;

Cheng, Fangjie .

ADDITIVE MANUFACTURING, 2021, 46

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