Using Ce to modify inclusion in spring steel
The effect of rare earth metals addition on the Al2O3 inclusions in spring steel used in fastener of high speed railway was investigated by metallographic examination, SEM-EDS and composition analysis. To deform those harmful inclusions to improve material performance，the evolution proce...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Technical Faculty, Bor
2017-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391700026W.pdf |
| _version_ | 1818498071686807552 |
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| author | Wang Q. Wang L.J. Liu Y.Q. Chou K.C. |
| author_facet | Wang Q. Wang L.J. Liu Y.Q. Chou K.C. |
| author_sort | Wang Q. |
| collection | DOAJ |
| description | The effect of rare earth metals addition on the Al2O3 inclusions in spring
steel used in fastener of high speed railway was investigated by
metallographic examination, SEM-EDS and composition analysis. To deform
those harmful inclusions to improve material performance，the evolution
process of Al2O3 inclusions was investigated through the surface and line
scanning. Ce metal modifying Al2O3 is a stepwise reduction process based on
a formation of ring shape Ce-riched band around the Al2O3 inclusions during
reaction process. Through experiment and thermodynamic calculation, an
evolvement rule about Al2O3 inclusions change after Ce addition is obtained,
i.e. Al2O3→Ce2O3-Al2O3→Ce2O2S. Changing the inclusions from Al2O3 to rare
earth inclusions could improve the resistance to pitting corrosion based on
potentiodynamic anodic polarization test. |
| first_indexed | 2024-12-10T18:53:21Z |
| format | Article |
| id | doaj.art-27a1934592554cbf825e43b69ee7a028 |
| institution | Directory Open Access Journal |
| issn | 1450-5339 2217-7175 |
| language | English |
| last_indexed | 2024-12-10T18:53:21Z |
| publishDate | 2017-01-01 |
| publisher | Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj.art-27a1934592554cbf825e43b69ee7a0282022-12-22T01:37:14ZengTechnical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752017-01-0153336537210.2298/JMMB161117026W1450-53391700026WUsing Ce to modify inclusion in spring steelWang Q.0Wang L.J.1Liu Y.Q.2Chou K.C.3University of Science and Technology, State Key Laboratory of Advanced Metallurgy, Beijing, China + University of Science and Technology, Collaborative Innovation Center of Steel Technology, Beijing, ChinaUniversity of Science and Technology, State Key Laboratory of Advanced Metallurgy, Beijing, China + University of Science and Technology, Collaborative Innovation Center of Steel Technology, Beijing, ChinaShougang Jingtang United Iron & Steel Co..Ltd, He Bei Province, ChinaUniversity of Science and Technology, State Key Laboratory of Advanced Metallurgy, Beijing, China + University of Science and Technology, Collaborative Innovation Center of Steel Technology, Beijing, ChinaThe effect of rare earth metals addition on the Al2O3 inclusions in spring steel used in fastener of high speed railway was investigated by metallographic examination, SEM-EDS and composition analysis. To deform those harmful inclusions to improve material performance，the evolution process of Al2O3 inclusions was investigated through the surface and line scanning. Ce metal modifying Al2O3 is a stepwise reduction process based on a formation of ring shape Ce-riched band around the Al2O3 inclusions during reaction process. Through experiment and thermodynamic calculation, an evolvement rule about Al2O3 inclusions change after Ce addition is obtained, i.e. Al2O3→Ce2O3-Al2O3→Ce2O2S. Changing the inclusions from Al2O3 to rare earth inclusions could improve the resistance to pitting corrosion based on potentiodynamic anodic polarization test.http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391700026W.pdfceriuminclusionsthermodynamic calculationAl2O3spring steel |
| spellingShingle | Wang Q. Wang L.J. Liu Y.Q. Chou K.C. Using Ce to modify inclusion in spring steel Journal of Mining and Metallurgy. Section B: Metallurgy cerium inclusions thermodynamic calculation Al2O3 spring steel |
| title | Using Ce to modify inclusion in spring steel |
| title_full | Using Ce to modify inclusion in spring steel |
| title_fullStr | Using Ce to modify inclusion in spring steel |
| title_full_unstemmed | Using Ce to modify inclusion in spring steel |
| title_short | Using Ce to modify inclusion in spring steel |
| title_sort | using ce to modify inclusion in spring steel |
| topic | cerium inclusions thermodynamic calculation Al2O3 spring steel |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391700026W.pdf |
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