Effect of Ce Element on the Microstructure and Corrosion Resistance of DH36 Ship Plate Steel
Currently， there are fewer studies on the effect of rare earths on the corrosion resistance of DH36 ship plate steel.Herein， the effect of the addition of rare earth Ce on the microstructure and corrosion resistance of DH36 ship plate steel was studied by metallographic microscope， scanning electron...
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| Language: | zho |
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Editorial Department of Materials Protection
2024-09-01
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| Series: | Cailiao Baohu |
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| Online Access: | http://www.mat-pro.com/fileup/1001-1560/PDF/20240902.pdf |
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| author | ZHU Yingjie, MENG Xiangchao, LIU Xiangjun, YANG Changqiao, WANG Ting, YANG Jichun |
| author_facet | ZHU Yingjie, MENG Xiangchao, LIU Xiangjun, YANG Changqiao, WANG Ting, YANG Jichun |
| author_sort | ZHU Yingjie, MENG Xiangchao, LIU Xiangjun, YANG Changqiao, WANG Ting, YANG Jichun |
| collection | DOAJ |
| description | Currently， there are fewer studies on the effect of rare earths on the corrosion resistance of DH36 ship plate steel.Herein， the effect of the addition of rare earth Ce on the microstructure and corrosion resistance of DH36 ship plate steel was studied by metallographic microscope， scanning electron microscope， electrochemical workstation and X-ray diffractometer.Results showed that Ce had a significant refining effect on the grain size of the test steel； The addition of Ce modified the Al2O3， MnS and Al2O3＋MnS inclusions in the steel to CeAlO3＋MnS，Ce2O3 inclusions，and the stress around rare earth inclusions significantly decreased，reducing the active zone where corrosion occurred.Moreover， the addition of Ce increased the self-corrosion potential of the test steel and reduced the self-corrosion current density.After immersed in 3.5%NaCl solution for 5 d， the corrosion current density of the test steel decreased from 8.431×10-5 A/cm2 without the addition of rare earth Ce to 2.384×10-5 A/cm2 with the Ce content of 0.009 2%； The addition of Ce declined the content of γ-FeOOH in the corrosion products，while increased the content of α-FeOOH and Fe3O4.All of test results indicated that the increase of Ce content would improve the corrosion resistance of the test steel. |
| format | Article |
| id | doaj-art-0b1aeaf1f2e14d7b9e3d1cbfc7145ec9 |
| institution | Kabale University |
| issn | 1001-1560 |
| language | zho |
| publishDate | 2024-09-01 |
| publisher | Editorial Department of Materials Protection |
| record_format | Article |
| series | Cailiao Baohu |
| spelling | doaj-art-0b1aeaf1f2e14d7b9e3d1cbfc7145ec92024-11-14T08:44:37ZzhoEditorial Department of Materials ProtectionCailiao Baohu1001-15602024-09-01579101910.16577/j.issn.1001-1560.2024.0196Effect of Ce Element on the Microstructure and Corrosion Resistance of DH36 Ship Plate SteelZHU Yingjie, MENG Xiangchao, LIU Xiangjun, YANG Changqiao, WANG Ting, YANG Jichun0(School of Materials and Metallurgy， Inner Mongolia University of Science and Technology， Baotou 014010， China) Currently， there are fewer studies on the effect of rare earths on the corrosion resistance of DH36 ship plate steel.Herein， the effect of the addition of rare earth Ce on the microstructure and corrosion resistance of DH36 ship plate steel was studied by metallographic microscope， scanning electron microscope， electrochemical workstation and X-ray diffractometer.Results showed that Ce had a significant refining effect on the grain size of the test steel； The addition of Ce modified the Al2O3， MnS and Al2O3＋MnS inclusions in the steel to CeAlO3＋MnS，Ce2O3 inclusions，and the stress around rare earth inclusions significantly decreased，reducing the active zone where corrosion occurred.Moreover， the addition of Ce increased the self-corrosion potential of the test steel and reduced the self-corrosion current density.After immersed in 3.5%NaCl solution for 5 d， the corrosion current density of the test steel decreased from 8.431×10-5 A/cm2 without the addition of rare earth Ce to 2.384×10-5 A/cm2 with the Ce content of 0.009 2%； The addition of Ce declined the content of γ-FeOOH in the corrosion products，while increased the content of α-FeOOH and Fe3O4.All of test results indicated that the increase of Ce content would improve the corrosion resistance of the test steel.http://www.mat-pro.com/fileup/1001-1560/PDF/20240902.pdfce； dh36 ship plate steel； inclusion； corrosion resistance |
| spellingShingle | ZHU Yingjie, MENG Xiangchao, LIU Xiangjun, YANG Changqiao, WANG Ting, YANG Jichun Effect of Ce Element on the Microstructure and Corrosion Resistance of DH36 Ship Plate Steel Cailiao Baohu ce； dh36 ship plate steel； inclusion； corrosion resistance |
| title | Effect of Ce Element on the Microstructure and Corrosion Resistance of DH36 Ship Plate Steel |
| title_full | Effect of Ce Element on the Microstructure and Corrosion Resistance of DH36 Ship Plate Steel |
| title_fullStr | Effect of Ce Element on the Microstructure and Corrosion Resistance of DH36 Ship Plate Steel |
| title_full_unstemmed | Effect of Ce Element on the Microstructure and Corrosion Resistance of DH36 Ship Plate Steel |
| title_short | Effect of Ce Element on the Microstructure and Corrosion Resistance of DH36 Ship Plate Steel |
| title_sort | effect of ce element on the microstructure and corrosion resistance of dh36 ship plate steel |
| topic | ce； dh36 ship plate steel； inclusion； corrosion resistance |
| url | http://www.mat-pro.com/fileup/1001-1560/PDF/20240902.pdf |
| work_keys_str_mv | AT zhuyingjiemengxiangchaoliuxiangjunyangchangqiaowangtingyangjichun effectofceelementonthemicrostructureandcorrosionresistanceofdh36shipplatesteel |