Induced-Pitting Behaviors of MnS Inclusions in Steel
This paper investigated the effects of MnS inclusions on inducing pitting in steel. Three different cooling methods were used to control the morphology, size, and distribution of MnS inclusions. AC (alternating current) impedance spectroscopy experiments and potentiodynamic polarization experiments...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2018-10-01
|
| Series: | High Temperature Materials and Processes |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/htmp-2017-0155 |
| _version_ | 1823939315487473664 |
|---|---|
| author | Yang Shufeng Zhao Mengjing Feng Jie Li Jingshe Liu Chengsong |
| author_facet | Yang Shufeng Zhao Mengjing Feng Jie Li Jingshe Liu Chengsong |
| author_sort | Yang Shufeng |
| collection | DOAJ |
| description | This paper investigated the effects of MnS inclusions on inducing pitting in steel. Three different cooling methods were used to control the morphology, size, and distribution of MnS inclusions. AC (alternating current) impedance spectroscopy experiments and potentiodynamic polarization experiments were carried out for different sizes of MnS inclusions. The corrosion immersion experiment was conducted to study the pitting corrosion process in different morphologies of MnS inclusions. The experiment results showed that pitting corrosion occurred around MnS inclusions and pitting was induced along the junction of MnS inclusions and their surrounding steel matrix. Also, the sensitivity of inducing-pitting of MnS inclusions was changed with the change of the average size of MnS in steel and it had a critical size of MnS. The deeper the MnS inclusions were buried in steel matrix, the more difficult it was for it to dissolve and fall off. Herein, it would cause greater damage. |
| first_indexed | 2024-12-17T02:56:38Z |
| format | Article |
| id | doaj.art-8eaf265442404b7da614208f4a6aa94b |
| institution | Directory Open Access Journal |
| issn | 0334-6455 2191-0324 |
| language | English |
| last_indexed | 2024-12-17T02:56:38Z |
| publishDate | 2018-10-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | High Temperature Materials and Processes |
| spelling | doaj.art-8eaf265442404b7da614208f4a6aa94b2022-12-21T22:06:13ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242018-10-01379-101007101610.1515/htmp-2017-0155Induced-Pitting Behaviors of MnS Inclusions in SteelYang Shufeng0Zhao Mengjing1Feng Jie2Li Jingshe3Liu Chengsong4School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaSchool of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, ChinaSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, ChinaThe State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, ChinaThis paper investigated the effects of MnS inclusions on inducing pitting in steel. Three different cooling methods were used to control the morphology, size, and distribution of MnS inclusions. AC (alternating current) impedance spectroscopy experiments and potentiodynamic polarization experiments were carried out for different sizes of MnS inclusions. The corrosion immersion experiment was conducted to study the pitting corrosion process in different morphologies of MnS inclusions. The experiment results showed that pitting corrosion occurred around MnS inclusions and pitting was induced along the junction of MnS inclusions and their surrounding steel matrix. Also, the sensitivity of inducing-pitting of MnS inclusions was changed with the change of the average size of MnS in steel and it had a critical size of MnS. The deeper the MnS inclusions were buried in steel matrix, the more difficult it was for it to dissolve and fall off. Herein, it would cause greater damage.https://doi.org/10.1515/htmp-2017-0155mns inclusionsinducepitting corrosionsteel matrix |
| spellingShingle | Yang Shufeng Zhao Mengjing Feng Jie Li Jingshe Liu Chengsong Induced-Pitting Behaviors of MnS Inclusions in Steel High Temperature Materials and Processes mns inclusions induce pitting corrosion steel matrix |
| title | Induced-Pitting Behaviors of MnS Inclusions in Steel |
| title_full | Induced-Pitting Behaviors of MnS Inclusions in Steel |
| title_fullStr | Induced-Pitting Behaviors of MnS Inclusions in Steel |
| title_full_unstemmed | Induced-Pitting Behaviors of MnS Inclusions in Steel |
| title_short | Induced-Pitting Behaviors of MnS Inclusions in Steel |
| title_sort | induced pitting behaviors of mns inclusions in steel |
| topic | mns inclusions induce pitting corrosion steel matrix |
| url | https://doi.org/10.1515/htmp-2017-0155 |
| work_keys_str_mv | AT yangshufeng inducedpittingbehaviorsofmnsinclusionsinsteel AT zhaomengjing inducedpittingbehaviorsofmnsinclusionsinsteel AT fengjie inducedpittingbehaviorsofmnsinclusionsinsteel AT lijingshe inducedpittingbehaviorsofmnsinclusionsinsteel AT liuchengsong inducedpittingbehaviorsofmnsinclusionsinsteel |