Influence of Calcareous Deposits on Hydrogen Embrittlement Susceptibility of Q460 Steel
Cathodic protection is widely used to protect structural steel from corrosion in marine environments. However, an inappropriate cathodic potential may lead to hydrogen embrittlement (HE). Therefore, this study investigates the relationship between cathodic protection potential, structure and composi...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-02-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/17/5/1110 |
| _version_ | 1797264247394140160 |
|---|---|
| author | Xilin Xiong Haichun Yang Tongqian Chen Na Zhang Tong Niu |
| author_facet | Xilin Xiong Haichun Yang Tongqian Chen Na Zhang Tong Niu |
| author_sort | Xilin Xiong |
| collection | DOAJ |
| description | Cathodic protection is widely used to protect structural steel from corrosion in marine environments. However, an inappropriate cathodic potential may lead to hydrogen embrittlement (HE). Therefore, this study investigates the relationship between cathodic protection potential, structure and composition of calcareous deposits, and hydrogen embrittlement susceptibility of Q460 steel. The slow strain rate test results and fracture analysis reveal that Q460 steel had the smallest HE susceptibility when covered with the calcareous deposits formed under −1.1 V<sub>SCE</sub>. The deposits have a relatively thin calcium-rich inner layer and a condensed magnesium-rich outer layer, which can significantly inhibit hydrogen entry. A sustained deposition reaction during slow strain rate testing (SSRT) in artificial seawater can also decrease the HE susceptibility of Q460 steel. |
| first_indexed | 2024-04-25T00:25:52Z |
| format | Article |
| id | doaj.art-c8fb044d1261404dade7d390dda42a49 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-25T00:25:52Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-c8fb044d1261404dade7d390dda42a492024-03-12T16:49:17ZengMDPI AGMaterials1996-19442024-02-01175111010.3390/ma17051110Influence of Calcareous Deposits on Hydrogen Embrittlement Susceptibility of Q460 SteelXilin Xiong0Haichun Yang1Tongqian Chen2Na Zhang3Tong Niu4Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, ChinaQingdao ZITN Micro-Electronics Co., Ltd., Qingdao 266114, ChinaSchool of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400054, ChinaInstitute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, ChinaNCS Testing Technology Co., Ltd., Beijing 100081, ChinaCathodic protection is widely used to protect structural steel from corrosion in marine environments. However, an inappropriate cathodic potential may lead to hydrogen embrittlement (HE). Therefore, this study investigates the relationship between cathodic protection potential, structure and composition of calcareous deposits, and hydrogen embrittlement susceptibility of Q460 steel. The slow strain rate test results and fracture analysis reveal that Q460 steel had the smallest HE susceptibility when covered with the calcareous deposits formed under −1.1 V<sub>SCE</sub>. The deposits have a relatively thin calcium-rich inner layer and a condensed magnesium-rich outer layer, which can significantly inhibit hydrogen entry. A sustained deposition reaction during slow strain rate testing (SSRT) in artificial seawater can also decrease the HE susceptibility of Q460 steel.https://www.mdpi.com/1996-1944/17/5/1110Q460 steelcalcareous depositsslow strain testhydrogen embrittlement susceptibility |
| spellingShingle | Xilin Xiong Haichun Yang Tongqian Chen Na Zhang Tong Niu Influence of Calcareous Deposits on Hydrogen Embrittlement Susceptibility of Q460 Steel Materials Q460 steel calcareous deposits slow strain test hydrogen embrittlement susceptibility |
| title | Influence of Calcareous Deposits on Hydrogen Embrittlement Susceptibility of Q460 Steel |
| title_full | Influence of Calcareous Deposits on Hydrogen Embrittlement Susceptibility of Q460 Steel |
| title_fullStr | Influence of Calcareous Deposits on Hydrogen Embrittlement Susceptibility of Q460 Steel |
| title_full_unstemmed | Influence of Calcareous Deposits on Hydrogen Embrittlement Susceptibility of Q460 Steel |
| title_short | Influence of Calcareous Deposits on Hydrogen Embrittlement Susceptibility of Q460 Steel |
| title_sort | influence of calcareous deposits on hydrogen embrittlement susceptibility of q460 steel |
| topic | Q460 steel calcareous deposits slow strain test hydrogen embrittlement susceptibility |
| url | https://www.mdpi.com/1996-1944/17/5/1110 |
| work_keys_str_mv | AT xilinxiong influenceofcalcareousdepositsonhydrogenembrittlementsusceptibilityofq460steel AT haichunyang influenceofcalcareousdepositsonhydrogenembrittlementsusceptibilityofq460steel AT tongqianchen influenceofcalcareousdepositsonhydrogenembrittlementsusceptibilityofq460steel AT nazhang influenceofcalcareousdepositsonhydrogenembrittlementsusceptibilityofq460steel AT tongniu influenceofcalcareousdepositsonhydrogenembrittlementsusceptibilityofq460steel |