@ARTICLE{Tang_Jiaqing_Effect_2025,
 author={Tang, Jiaqing and Li, Jie and Liu, Kun},
 volume={vol. 70},
 number={No 2},
 journal={Archives of Metallurgy and Materials},
 pages={785-796},
 howpublished={online},
 year={2025},
 publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences},
 publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences},
 abstract={Ti-containing and Ti-free 12MnNiVR steels were welded separately by vertical EGW welding with a heat input of 100 kJ/cm. The microstructure, precipitates and inclusions of the welded joints were studied by means of optical microscope, scanning electron microscope and energy dispersive spectrometer, and the mechanical properties of the welded joints such as tensile strength, bending, and impact were tested. Results indicate that microstructure of Ti-free steel (TFS) weld metal is mainly coarse acicular and massive proeutectoid ferrite, coarse acicular ferrite Widmanstatten structure and granular bainite. The microstructure of Ti-containing steel (TCS) weld metal is mainly granular bainite and acicular ferrite. Ti has little effect on the tensile and flexural properties of welded joints, but it can improve the impact toughness of welded joints, from 101.6 J to 176.4 J at the center of weld, from 43.6 J to 80.1 J at the fusion line, from 61.5 J to 163.1 J at the fusion line + 2 mm, increasing by 73.6%, 83.7%, 165.2%, and the content of Ni and Ti in the dimples of impact fracture surface is high.},
 type={Article},
 title={Effect of Ti on Microstructure and Mechanical Properties of Vertical EGW Welded Joint of 12MnNiVR Steel},
 URL={http://ochroma.man.poznan.pl/Content/135580/AMM-2025-2-29-Liu.pdf},
 doi={10.24425/amm.2025.153481},
 keywords={12MnNiVR steel, vertical EGW, microstructure, tensile strength},
}