Microstructure Transformation Behavior of Oxide Scale of Hot Rolled SPHC Steel for Galvanizing During Heating Process
SUN Bin1,2,*, CHENG Lei1, YOU Hongguang1, CAO Guangming2, LIU Zhenyu2
1 Mechanical Engineering Institute, Shenyang University, Shenyang 110044, China 2 The State Key Laboratory of Rolling Technology and Automation, Northeastern University, Shenyang 110819, China
Abstract: To analyze microstructure transformation behavior of hot rolled strip scale during heating process in the direct fired section of reduction annealing furnace,the microstructure transformation of oxide scale of hot rolled strip studied by thermal simulation on GLEEBLE3800 test machine. The microstructures of oxide scale at different temperatures were observed by EPMA. When the temperature rised to 530 ℃, the eutectoid Fe preferentially dissolved and iron ions formed. Iron ions diffused into the adjacent Fe3O4 through short range leading to iron ion content in Fe3O4 increasing. The nucleation of Fe1-yO was not found in oxide scale. When the heating temperature was 650 ℃, the eutectoid structure had almost completely reversed, and only the pre-eutectoid structure remained in the whole scale. The structure of the oxide scale had evolved into two la-yers, consisting of the outer Fe3O4 and the inner Fe1-yO until the temperature reached 760 ℃.Pro-eutectoid Fe3O4 and eutectoid structure had transformed into Fe1-yO during heating process. The preferential dissolution of lamellar eutectoid Fe diffused into the adjacent eutectoid Fe3O4 through short range diffusion.
孙彬, 程磊, 尤宏广, 曹光明, 刘振宇. 镀锌用热轧SPHC钢的氧化铁皮在升温过程的组织转变[J]. 材料导报, 2021, 35(14): 14125-14129.
SUN Bin, CHENG Lei, YOU Hongguang, CAO Guangming, LIU Zhenyu. Microstructure Transformation Behavior of Oxide Scale of Hot Rolled SPHC Steel for Galvanizing During Heating Process. Materials Reports, 2021, 35(14): 14125-14129.
1 Li Zhifeng,Sun Chao, et al. Hebei Metallurgy, 2019(9),1(in Chinese). 李志峰,孙超,等.河北冶金, 2019(9),1. 2 Qiao C,Shen L,Hao L,et al. Journal of Materials Science & Technology, 2019,35,2345. 3 Li Heran.Effect study of Mn-Si on mechanical property and wetting behavior of 340MPa hot-dip galvanizing steel sheet. Master's Thesis, University of Science and Technology Liaoning , China, 2017(in Chinese). 李贺然.Mn-Si元素对340MPa热浸镀锌钢板力学性能和浸润性的影响研究.硕士学位论文,辽宁科技大学,2017. 4 Huang Quanwei, Han Bin, et al. Wisco technology, 2016,54(2),22(in Chinese). 黄全伟,韩斌,等.武钢技术, 2016,54(2),22. 5 Cao Guangming, Li Zhifeng,Wang Hao, et al. Journal of Iron and Steel Research, 2019,31(2),159(in Chinese). 曹光明,李志峰,王皓,等. 钢铁研究学报, 2019,31(2),159. 6 Chen R Y,Yuen W.Oxidation of Metals, 2003, 59(5-6),433. 7 Chen R Y,Yuen W.Oxidation of Metals, 2001, 56(1-2),111. 8 Chen R Y,Yuen W.Oxidation of Metals, 1999, 53(5-6),539. 9 Chen R Y,Yuen W.Oxidation of Metals, 2017,88(5-6),687. 10 He Y Q,Jia T,Liu X J,et al. Journal of Iron and Steel Research(International), 2014,21(2),222. 11 He Y Q,Jia T,Li Z,et al. Metallurgical and Materials Transactions, 2016,47A,4845. 12 Ivana Cvijovic′, Ivana Parezanovic′, Michael Spiegel. Corrosion Science, 2005,48(4),980. 13 Feng Jianying. CFHI Technology, 2014(4),14(in Chinese). 冯建英.一重技术, 2014(4),14. 14 Wang Changchun. Tianjin Metallurgy, 2016(5),34. 王长春.天津冶金, 2016(5),34. 15 He Yongquan.Research and application of hot dip galvanizing of hot-rolled steel strip without pickling. Ph.D. Thesis, Northeastern University, China,2015(in Chinese). 何永全.热轧带钢免酸洗还原热镀锌工艺研究与应用.博士学位论文,东北大学,2015. 16 Sun Bin,Liu Zhenyu,Qiu Yiqing,et al. Journal of Iron and Steel Research, 2010,22(2),34. 孙彬,刘振宇,邱以清,等.钢铁研究学报, 2010,22(2),34. 17 Neil B, Gerald H M ,Frederick S P . Introduction to the high-temperature oxidation of metals 2nd Ed. Cambridge University Press, England, 2006. 18 Li Zhifeng, Cao GuangMing, Lin Fei,et al. ISIJ international, 2017, 57(11),2034. 19 Young D J . In:High temperature oxidation and corrosion of metals.Ne-therlands,2008,pp. 253.
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2021, Vol. 35 
