Effect of oxidizing atmosphere on scale formation of weathering steel containing Si

Mei Peng; Bao Siqian; Gong Li; Lu Weina; Cao Shuwei; Sun Guanghui; Wan Guoxi

doi:10.7513/j.issn.1004-7638.2021.05.028

Volume 42 Issue 5

Oct. 2021

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Mei Peng, Bao Siqian, Gong Li, Lu Weina, Cao Shuwei, Sun Guanghui, Wan Guoxi. Effect of oxidizing atmosphere on scale formation of weathering steel containing Si[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 180-185. doi: 10.7513/j.issn.1004-7638.2021.05.028

Citation:

Mei Peng, Bao Siqian, Gong Li, Lu Weina, Cao Shuwei, Sun Guanghui, Wan Guoxi. Effect of oxidizing atmosphere on scale formation of weathering steel containing Si[J]. IRON STEEL VANADIUM TITANIUM, 2021, 42(5): 180-185. doi: 10.7513/j.issn.1004-7638.2021.05.028

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Effect of oxidizing atmosphere on scale formation of weathering steel containing Si

doi: 10.7513/j.issn.1004-7638.2021.05.028

1.
Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China
2.
The Second Rolling Plant of Anyang Steel, Anyang 455006, Henan, China

Received Date: 2020-04-16
Publish Date: 2021-10-30

Abstract

Abstract

To simulate the influence of oxygen deficient and air conditions on the scale formation in the production process, the experimental steel was heated in 1150 ℃ and 1200 ℃ with oxygen content of 3% and 21% by tubular furnace to study the scale formation. The cross-section morphology of the scale was observed and analyzed by SEM and EPMA. The results show that when the temperature is higher than 1150 ℃, the oxidation weight gain curve under different oxidation atmospheres is more close to linear relation, and the oxidation weight gain and oxidation rate increase obviously with the increase of oxygen content in the oxidation atmosphere. Compared with the traditional scale structure, there are more Fe₂SiO₄ layers between the scale and the matrix. Fe₂SiO₄ does not undergo liquid phase transformation at 1150 ℃ except for 3% oxygen content. Liquid phase transformation occurs under other conditions. The permeability of liquid Fe₂SiO₄ increases with the increase of temperature and oxygen content in the oxygen atmosphere. Combined with the experimental results, the residual oxygen content in the heating furnace at high temperature (above 1150 ℃) was reasonably controlled, and no obvious red scale defect was found in the finished product.
- weathering steel,
- oxidation atmosphere,
- red scale,
- Fe₂SiO₄

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References(11)

References

[1]	Li Shujia, Liu Yangbo, Zhang Wei, et al. Effect of Si on the oxidation rates of spring steels in atmosphere with O₂ of 2%[J]. Journal of Iron and Steel Research, 2015,27(5):55−60. (李舒笳, 柳洋波, 张玮, 等. 2%残氧气氛下硅对弹簧钢氧化速率的影响[J]. 钢铁研究学报, 2015,27(5):55−60.
[2]	Chen Guanghui, Xu Guang, Yuan Qing, et al. Study on isothermal oxidation behavior of Nb-containing high strength steel[J]. Hot Working Technology, 2019,48(6):76−79. (陈光辉, 徐光, 袁清, 等. 含Nb高强钢等温氧化行为研究[J]. 热加工工艺, 2019,48(6):76−79.
[3]	Liang Weicheng, Xu Guang, Yuan Qing, et al. An experimental study on oxidation behavior in low carbon steel containing Si under non-isothermal oxidizing process[J]. Journal of Wuhan University of Science and Technology, 2017,40(4):245−250. (梁伟成, 徐光, 袁清, 等. 非等温氧化工艺下含Si低碳钢氧化行为的实验研究[J]. 武汉科技大学学报(自然科学版), 2017,40(4):245−250.
[4]	Zhao Xiaolong, Wang Yongqi, Tang Xingchang, et al. Review on the oxidation mechanism and its research of steel billet in heating process[J]. Steel Rolling, 2019,36(6):66−68,82. (赵小龙, 王雍期, 唐兴昌, 等. 钢坯在加热过程中的氧化机理及其研究综述[J]. 轧钢, 2019,36(6):66−68,82.
[5]	杨丽琴, 丁美良. 加热炉氧化烧损研究及改进措施[J]. 金属热处理, 2016, 41(9): 168-170. Yang Liqin, Ding Meiliang, Research on oxidizing burning loss of heating furnace and improvement measures[J]. Heat Treatment of Metals, 2016, 41(9): 168-170.
[6]	Sun Bin, Cao Guangming, Liu Zhenyu. Formation mechanism of powered scale on hot rolled strip and flexible control method[J]. Journal of Iron and Steel Research, 2013,25(10):53−57. (孙彬, 曹光明, 刘振宇. 热轧带钢粉状氧化铁皮的形成机制及柔性化控制[J]. 钢铁研究学报, 2013,25(10):53−57.
[7]	Mouayd A A, Koltsov A, Sutter E, et al. Effect of silicon content in steel and oxidation temperature on scale growth and morphology[J]. Materials Chemistry & Physics, 2014,143(3):996−1004.
[8]	袁清. 低碳含Si钢高温氧化行为及网格状Fe₂SiO₄/FeO形成机理研究[D]. 武汉: 武汉科技大学, 2019. Yuan Qing. Research on the high-temperature oxidation behavior of low carbon silicon-containing steels and the formation mechanism of Net-like Fe₂SiO₄/FeO[D]. Hubei: Wuhan University of Science and Technology, 2019.
[9]	Sun Bin, Hao Mingxin, You Hongguang, et al. High temperature oxidation behavior of Fe-1 Cr-0.2 Si Steel[J]. Materials Reports, 2020,34(16):16131−16135. (孙彬, 郝明欣, 尤宏广, 等. Fe-1Cr-0.2Si钢的高温氧化行为[J]. 材料导报, 2020,34(16):16131−16135. doi: 10.11896/cldb.19060169
[10]	Yan Lixin, Liang Liang, Cao Guangming, et al. High temperature oxidation behavior of low carbon steel with Cr element[J]. Steel Rolling, 2021,38(1):14−19. (严立新, 梁亮, 曹光明, 等. 含Cr低碳钢的高温氧化行为研究[J]. 轧钢, 2021,38(1):14−19.
[11]	Yuan Qing, Xu Guang, Hu Haijiang, et al. Effects of oxygen concentration on the passivation of Si-containing steel during high-temperature oxidation[J]. Corrosion Reviews, 2018,36(4):385−393. doi: 10.1515/corrrev-2017-0077