Evolution of Al2O3 inclusions by cerium treatment in low carbon high manganese steel

被引：0
作者：
Hao Li
Yan-chong Yu
Xiang Ren
Shao-hua Zhang
She-bin Wang
机构：
[1] Taiyuan University of Technology,College of Materials Science and Engineering
[2] Taiyuan University of Technology,Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education
来源：
Journal of Iron and Steel Research International | 2017年 / 24卷
关键词：
Low carbon high; manganese steel; Inclusion; Cerium treatment; Evolution mechanism; Transferring kinetics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The influence of cerium (Ce) treatment on the morphologies, size and distributions of Al2O3 inclusions in low carbon high manganese steel was investigated by OM, SEM-EDS and theoretical calculation. The results showed that Ce can modify the morphologies and types of Al2O3 inclusions. After Ce treatment, the irregular Al2O3 inclusions were replaced by smaller and dispersive spherical cerium oxysulfides. The effects of treatment time and Ce content on the evolution of Al2O3 inclusions were examined. It indicated that Al2O3 inclusions were wrapped by rare earth inclusions to form a ring like shape Ce-enriched band around the inclusions. Model was established to elucidate the evolution mechanism of Al2O3 inclusions. Evolution kinetics of inclusions was discussed qualitatively to analyze the velocity controlled step. It was found that diffusion of Ce3+ and Al3+ in solid inclusion core and the formed intermediate layer would be the limited step during the evolution process.
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页码：925 / 934
页数：9
相关论文
共 40 条
  • [1] Wang K(2008)undefined Metall. Mater. Int. 14 689-693
  • [2] Du X D(1996)undefined Progres. Mater. Tekhnol. 2 23-24
  • [3] Youn K T(2015)undefined Mater. Sci. Eng. 628 110-115
  • [4] Gorynin I V(2003)undefined ISIJ Int. 43 271-291
  • [5] Malyshevskii V A(1977)undefined Int. Metall. Rev. 22 221-228
  • [6] Legostaev Y L(1998)undefined Int. J. Fatigue 20 661-667
  • [7] Ferreira H C(2003)undefined Ironmak. Steelmak. 30 165-169
  • [8] Boratto F J M(2015)undefined ISIJ Int. 55 564-569
  • [9] Buono V T L(2014)undefined Inorg. Mater. 5 554-561
  • [10] Zhang L F(2007)undefined ISIJ Int. 47 627-632
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