Effect of tellurium on sulfide modification and corrosion resistance of 38MnVS non-tempered steel

ZHOU Qunxiang; XU Ruijun; WU Wenbo; ZENG Fanzheng; LI Jie; XU Xiangyu; FU Jianxun

doi:10.7513/j.issn.1004-7638.2025.04.024

Volume 46 Issue 4

Aug. 2025

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Article Navigation > IRON STEEL VANADIUM TITANIUM > 2025 > 46(4): 182-189, 196

ZHOU Qunxiang, XU Ruijun, WU Wenbo, ZENG Fanzheng, LI Jie, XU Xiangyu, FU Jianxun. Effect of tellurium on sulfide modification and corrosion resistance of 38MnVS non-tempered steel[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(4): 182-189, 196. doi: 10.7513/j.issn.1004-7638.2025.04.024

Citation:

ZHOU Qunxiang, XU Ruijun, WU Wenbo, ZENG Fanzheng, LI Jie, XU Xiangyu, FU Jianxun. Effect of tellurium on sulfide modification and corrosion resistance of 38MnVS non-tempered steel[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(4): 182-189, 196. doi: 10.7513/j.issn.1004-7638.2025.04.024

Citation:

ZHOU Qunxiang, XU Ruijun, WU Wenbo, ZENG Fanzheng, LI Jie, XU Xiangyu, FU Jianxun. Effect of tellurium on sulfide modification and corrosion resistance of 38MnVS non-tempered steel[J]. IRON STEEL VANADIUM TITANIUM, 2025, 46(4): 182-189, 196. doi: 10.7513/j.issn.1004-7638.2025.04.024

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Effect of tellurium on sulfide modification and corrosion resistance of 38MnVS non-tempered steel

doi: 10.7513/j.issn.1004-7638.2025.04.024

1.
Advanced Solidification Technology Center, School of Materials Science and Engineering, Shanghai University, State Key Laboratory of High Quality Special Steel Metallurgy and Preparation, Shanghai 200444, China
2.
Technology Center, Hunan Valin Xiangtan Iron & Steel Co., Ltd., Xiangtan 411100, Hunan, China
3.
Department of Materials Science, Fudan University, Shanghai 200439, China

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Received Date: 2024-04-22
Available Online: 2025-08-31
Publish Date: 2025-08-31

Abstract

Abstract

A three-electrode electrochemical test was carried out to investigate the effect of tellurium addition on the corrosion of un-tempered steel, and the sulfide in steel was characterized by scanning electron microscopy (SEM) and electron probe (EDS), and the electrochemical corrosion test results were interpreted. The results show that with the increase of tellurium content, the self-corrosion potential of steel increases and the corrosion tendency decreases. A small amount of tellurium (0.026%) is solid solution in manganese sulfide, and the steel achieve the lowest corrosion current of 5.13×10⁻⁶ A and the best corrosion resistance. With tellurium addition in steel, MnTe is surrounded by MnS, resulting in a significant reduction in the aspect ratio of inclusions and a more uniform distribution of long strips of sulfide into ellipsoids, which effectively reduces the stress concentration around the sulfide.
- non-tempered steel,
- tellurium modification,
- manganese sulfide,
- corrosion resistance

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References(24)

References

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