Mechanisms of pitting induced by containing Ce inclusions in X100 pipeline steel
Rare earth cerium (Ce) can reduce the pitting susceptibility and occurrence probability of X100 pipeline steel in a simulated marine environment by altering the characteristics and quantity of inclusions. To elucidate the effects of containing Ce inclusions on pitting, X-ray micro-computer tomograph...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-11-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424027030 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846107699497926656 |
|---|---|
| author | Xiangjun Liu Changqiao Yang Zhongqiao Ma Jichun Yang Huiping Ren Xinfang Zhang Zhen Zhao |
| author_facet | Xiangjun Liu Changqiao Yang Zhongqiao Ma Jichun Yang Huiping Ren Xinfang Zhang Zhen Zhao |
| author_sort | Xiangjun Liu |
| collection | DOAJ |
| description | Rare earth cerium (Ce) can reduce the pitting susceptibility and occurrence probability of X100 pipeline steel in a simulated marine environment by altering the characteristics and quantity of inclusions. To elucidate the effects of containing Ce inclusions on pitting, X-ray micro-computer tomography observations, field emission scanning electron microscopy with energy dispersive spectroscopy analyses, scanning Kelvin probe microscopy tests, conductive atomic force microscopy analyses, and a series of immersion tests were carried out. The results show that after adding 0.0049 wt%Ce, the number of inclusions per unit volume decreases from 224 to 24. Moreover, the mechanism of pitting induced by inclusions after Ce modification has changed fundamentally. The local corrosion of containing Ce inclusions is mainly caused by chemical process rather than the previous combined of electrochemical and chemical process, and this change effectively slows down the rate of initiation and propagation of pitting. |
| format | Article |
| id | doaj-art-43f7c0484b10417d92858562a8e23fee |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-43f7c0484b10417d92858562a8e23fee2024-12-26T08:55:49ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013386318643Mechanisms of pitting induced by containing Ce inclusions in X100 pipeline steelXiangjun Liu0Changqiao Yang1Zhongqiao Ma2Jichun Yang3Huiping Ren4Xinfang Zhang5Zhen Zhao6School of Rare Earth Industry, Inner Mongolia University of Science and Technology, Baotou, 014010, Inner Mongolia, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Baotou, 014010, Inner Mongolia, China; Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing, 100083, ChinaSchool of Rare Earth Industry, Inner Mongolia University of Science and Technology, Baotou, 014010, Inner Mongolia, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Baotou, 014010, Inner Mongolia, China; Corresponding author. School of Rare Earth Industry, Inner Mongolia University of Science and Technology, Baotou, 014010, Inner Mongolia, China.School of Rare Earth Industry, Inner Mongolia University of Science and Technology, Baotou, 014010, Inner Mongolia, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Baotou, 014010, Inner Mongolia, ChinaSchool of Rare Earth Industry, Inner Mongolia University of Science and Technology, Baotou, 014010, Inner Mongolia, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Baotou, 014010, Inner Mongolia, ChinaSchool of Rare Earth Industry, Inner Mongolia University of Science and Technology, Baotou, 014010, Inner Mongolia, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Baotou, 014010, Inner Mongolia, ChinaSchool of Rare Earth Industry, Inner Mongolia University of Science and Technology, Baotou, 014010, Inner Mongolia, China; Key Laboratory of Green Extraction & Efficient Utilization of Light Rare-Earth Resources (Inner Mongolia University of Science and Technology), Ministry of Education, Baotou, 014010, Inner Mongolia, ChinaInner Mongolia ZTHY Rare Earth New Materials Co., Ltd, Baotou, 014010, Inner Mongolia, ChinaRare earth cerium (Ce) can reduce the pitting susceptibility and occurrence probability of X100 pipeline steel in a simulated marine environment by altering the characteristics and quantity of inclusions. To elucidate the effects of containing Ce inclusions on pitting, X-ray micro-computer tomography observations, field emission scanning electron microscopy with energy dispersive spectroscopy analyses, scanning Kelvin probe microscopy tests, conductive atomic force microscopy analyses, and a series of immersion tests were carried out. The results show that after adding 0.0049 wt%Ce, the number of inclusions per unit volume decreases from 224 to 24. Moreover, the mechanism of pitting induced by inclusions after Ce modification has changed fundamentally. The local corrosion of containing Ce inclusions is mainly caused by chemical process rather than the previous combined of electrochemical and chemical process, and this change effectively slows down the rate of initiation and propagation of pitting.http://www.sciencedirect.com/science/article/pii/S2238785424027030X100 pipeline steelRare earth inclusionXRMAFMPitting |
| spellingShingle | Xiangjun Liu Changqiao Yang Zhongqiao Ma Jichun Yang Huiping Ren Xinfang Zhang Zhen Zhao Mechanisms of pitting induced by containing Ce inclusions in X100 pipeline steel Journal of Materials Research and Technology X100 pipeline steel Rare earth inclusion XRM AFM Pitting |
| title | Mechanisms of pitting induced by containing Ce inclusions in X100 pipeline steel |
| title_full | Mechanisms of pitting induced by containing Ce inclusions in X100 pipeline steel |
| title_fullStr | Mechanisms of pitting induced by containing Ce inclusions in X100 pipeline steel |
| title_full_unstemmed | Mechanisms of pitting induced by containing Ce inclusions in X100 pipeline steel |
| title_short | Mechanisms of pitting induced by containing Ce inclusions in X100 pipeline steel |
| title_sort | mechanisms of pitting induced by containing ce inclusions in x100 pipeline steel |
| topic | X100 pipeline steel Rare earth inclusion XRM AFM Pitting |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424027030 |
| work_keys_str_mv | AT xiangjunliu mechanismsofpittinginducedbycontainingceinclusionsinx100pipelinesteel AT changqiaoyang mechanismsofpittinginducedbycontainingceinclusionsinx100pipelinesteel AT zhongqiaoma mechanismsofpittinginducedbycontainingceinclusionsinx100pipelinesteel AT jichunyang mechanismsofpittinginducedbycontainingceinclusionsinx100pipelinesteel AT huipingren mechanismsofpittinginducedbycontainingceinclusionsinx100pipelinesteel AT xinfangzhang mechanismsofpittinginducedbycontainingceinclusionsinx100pipelinesteel AT zhenzhao mechanismsofpittinginducedbycontainingceinclusionsinx100pipelinesteel |