Effect of Ti treatment process on inclusions in steel

Xiao Aida; Zheng Qing; Liang Liang; Zhou Jianfeng; Xie Shizheng; Wang Bo; Zhang Bo; Liu Chunquan

doi:10.7513/j.issn.1004-7638.2022.01.024

Volume 43 Issue 1

Mar. 2022

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Xiao Aida, Zheng Qing, Liang Liang, Zhou Jianfeng, Xie Shizheng, Wang Bo, Zhang Bo, Liu Chunquan. Effect of Ti treatment process on inclusions in steel[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(1): 158-164. doi: 10.7513/j.issn.1004-7638.2022.01.024

Citation:

Xiao Aida, Zheng Qing, Liang Liang, Zhou Jianfeng, Xie Shizheng, Wang Bo, Zhang Bo, Liu Chunquan. Effect of Ti treatment process on inclusions in steel[J]. IRON STEEL VANADIUM TITANIUM, 2022, 43(1): 158-164. doi: 10.7513/j.issn.1004-7638.2022.01.024

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Effect of Ti treatment process on inclusions in steel

doi: 10.7513/j.issn.1004-7638.2022.01.024

1.
Hunan Valin Lianyuan Iron and Steel Co., Ltd., Loudi 417000, Hunan,China
2.
School of Metallurgy and Material Engineering, Hunan University of Technology, Zhuzhou 412007, Hunan, China

Received Date: 2021-11-23
Available Online: 2022-04-24
Publish Date: 2022-02-28

Abstract

Abstract

In this work, the influence of Ti treatment on inclusions in steel and the formation conditions and evolution process of Ti oxide inclusions were studied by a combination of simulation calculation and experiment. The results show that at 1 600 ℃, when the content of [O] in steel is greater than 22×10⁻⁶, Ti oxide inclusions will be formed. At the same time, since the presence of [Als] in the steel will inhibit the formation of Ti-containing oxide inclusions, it is required to avoid the use of metallic Al for deoxidation treatment as much as possible during the smelting process. When the [O] content in the steel before Ti treatment is less than 80×10⁻⁶, with the increase of [O] content, the size of the inclusions changes slightly. The addition of Ca particles after the Ti treatment can modify the inclusions and promote the nucleation of MnS on the inclusions, which is beneficial to promote the formation of intragranular acicular ferrite.
- wear-resistant steel,
- Ti treatment,
- oxide metallurgy,
- inclusions,
- intragranular acicular ferrite

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References(21)

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