Effects of Rare Earth Ce on Microstructure and Corrosion Resistance of X100 Pipeline Steel AITranslate
Abstract AITranslate
Taking X100 pipeline steel as the research object,the test steel with various amounts of Ce was smelted in a vacuum induction furnace under laboratory conditions.The effects of Ce on microstructure and corrosion resistance of X100 pipeline steel were studied by scanning electron microscope,Zeiss metallographic microscope,electrochemical workstation and X-ray diffractometer.The results show that the addition of Ce transforms MnS and Mn-Si-Al-O inclusions in X100 steel into CexOyand Mn-Si-Al-O-Ce inclusions,and the size increases from about 4μm to about 10μm.Ce has obvious refining effect on the microstructure of X100 test steel,representing that in the range of 0~0.0049%,the microstructure of the test steel is gradually refined with the increase of Ce content.The addition of Ce can also improve the corrosion potential and lower the corrosion current density of the test steel.Under the condition of immersion in 3.5%NaCl solution for 28 d,corrosion current density of the test steel decreases from 4.6347 mA/cm2 without Ce addition to 3.7784 mA/cm2 with Ce content of 0.0049%,and the test steel with Ce content of 0.0049%shows better corrosion resistance.In addition,the addition of Ce can effectively increase the content ofα-FeOOH and Fe3O4in the corrosion product and enhance the protection of the steel matrix,which is conducive to improving the corrosion resistance of the test steel.
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Basic Information:
DOI：
Chinese Library Classification Number:TG174[金属学及工艺—金属表面处理]
Citation Information:
Taking X100 pipeline steel as the research object,the test steel with various amounts of Ce was smelted in a vacuum induction furnace under laboratory conditions.The effects of Ce on microstructure and corrosion resistance of X100 pipeline steel were studied by scanning electron microscope,Zeiss metallographic microscope,electrochemical workstation and X-ray diffractometer.The results show that the addition of Ce transforms MnS and Mn-Si-Al-O inclusions in X100 steel into CexOyand Mn-Si-Al-O-Ce inclusions,and the size increases from about 4μm to about 10μm.Ce has obvious refining effect on the microstructure of X100 test steel,representing that in the range of 0~0.0049%,the microstructure of the test steel is gradually refined with the increase of Ce content.The addition of Ce can also improve the corrosion potential and lower the corrosion current density of the test steel.Under the condition of immersion in 3.5%NaCl solution for 28 d,corrosion current density of the test steel decreases from 4.6347 mA/cm2 without Ce addition to 3.7784 mA/cm2 with Ce content of 0.0049%,and the test steel with Ce content of 0.0049%shows better corrosion resistance.In addition,the addition of Ce can effectively increase the content ofα-FeOOH and Fe3O4in the corrosion product and enhance the protection of the steel matrix,which is conducive to improving the corrosion resistance of the test steel.
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| GB/T 7714-2015 | [1] LI An-xin, YANG Ji-chun, LIU Xiang-jun, et al. Effects of Rare Earth Ce on Microstructure and Corrosion Resistance of X100 Pipeline Steel[J]. Rare Metals and Cemented Carbides, 2023(1): 52-58. |
| MLA | [1] LI An-xin, et al., "Effects of Rare Earth Ce on Microstructure and Corrosion Resistance of X100 Pipeline Steel." Rare Metals and Cemented Carbides, no. 1, 2023, pp. 52-58. |
| APA | [1] LI An-xin, YANG Ji-chun, LIU Xiang-jun, YANG Chang-qiao, & GONG Lei. (2023). Effects of Rare Earth Ce on Microstructure and Corrosion Resistance of X100 Pipeline Steel. Rare Metals and Cemented Carbides(1), 52-58. |
| IEEE | [1] LI An-xin, YANG Ji-chun, LIU Xiang-jun, YANG Chang-qiao, and GONG Lei, "Effects of Rare Earth Ce on Microstructure and Corrosion Resistance of X100 Pipeline Steel," Rare Metals and Cemented Carbides, no. 1, pp. 52-58, 2023. keywords: {rare earth Ce;X100 pipeline steel;microstructure;electrochemical corrosion;rust layer} |