Study on Coercivity-Stress Relationship of X80 Steel under Biaxial Stress
Buried pipelines are prone to deformation under surface displacement, pressure occupation, and/or other actions, resulting in stress concentration. Conducting regular stress detection is an important approach to reducing pipeline accidents. This study performed experiments on measuring the coercivit...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/2510505 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832565429155921920 |
|---|---|
| author | Shulu Feng Zhijiu Ai Jian Liu Jiayi He Yukun Li Qifeng Peng Chengkun Li |
| author_facet | Shulu Feng Zhijiu Ai Jian Liu Jiayi He Yukun Li Qifeng Peng Chengkun Li |
| author_sort | Shulu Feng |
| collection | DOAJ |
| description | Buried pipelines are prone to deformation under surface displacement, pressure occupation, and/or other actions, resulting in stress concentration. Conducting regular stress detection is an important approach to reducing pipeline accidents. This study performed experiments on measuring the coercivity stress of X80 steel, the most commonly used material for high-pressure large-diameter gas transmission pipelines. The coercivity of the specimen under different stress combinations was measured using the DC-driven coercive force measurement system, and the variation of coercive force with biaxial stress was also analyzed. The modified coercive force-stress expression of the generalized Hooke’s law was proposed; the model for the coercive force-stress relationship of X80 steel under the biaxial stress state was established based on this expression. The study indicates that the coercive force method is reliable for accurately measuring the stress of pipeline steel and evaluating the safety margin of in-service pipelines. |
| format | Article |
| id | doaj-art-26b3839984ab4345b76f86582e265af3 |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-26b3839984ab4345b76f86582e265af32025-02-03T01:07:35ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/2510505Study on Coercivity-Stress Relationship of X80 Steel under Biaxial StressShulu Feng0Zhijiu Ai1Jian Liu2Jiayi He3Yukun Li4Qifeng Peng5Chengkun Li6Southwest Petroleum UniversitySouthwest Petroleum UniversityChina University of Petroleum (East China)Petro China Southwest Pipeline CompanyChina University of Petroleum (East China)China University of Petroleum (East China)China University of Petroleum (East China)Buried pipelines are prone to deformation under surface displacement, pressure occupation, and/or other actions, resulting in stress concentration. Conducting regular stress detection is an important approach to reducing pipeline accidents. This study performed experiments on measuring the coercivity stress of X80 steel, the most commonly used material for high-pressure large-diameter gas transmission pipelines. The coercivity of the specimen under different stress combinations was measured using the DC-driven coercive force measurement system, and the variation of coercive force with biaxial stress was also analyzed. The modified coercive force-stress expression of the generalized Hooke’s law was proposed; the model for the coercive force-stress relationship of X80 steel under the biaxial stress state was established based on this expression. The study indicates that the coercive force method is reliable for accurately measuring the stress of pipeline steel and evaluating the safety margin of in-service pipelines.http://dx.doi.org/10.1155/2022/2510505 |
| spellingShingle | Shulu Feng Zhijiu Ai Jian Liu Jiayi He Yukun Li Qifeng Peng Chengkun Li Study on Coercivity-Stress Relationship of X80 Steel under Biaxial Stress Advances in Materials Science and Engineering |
| title | Study on Coercivity-Stress Relationship of X80 Steel under Biaxial Stress |
| title_full | Study on Coercivity-Stress Relationship of X80 Steel under Biaxial Stress |
| title_fullStr | Study on Coercivity-Stress Relationship of X80 Steel under Biaxial Stress |
| title_full_unstemmed | Study on Coercivity-Stress Relationship of X80 Steel under Biaxial Stress |
| title_short | Study on Coercivity-Stress Relationship of X80 Steel under Biaxial Stress |
| title_sort | study on coercivity stress relationship of x80 steel under biaxial stress |
| url | http://dx.doi.org/10.1155/2022/2510505 |
| work_keys_str_mv | AT shulufeng studyoncoercivitystressrelationshipofx80steelunderbiaxialstress AT zhijiuai studyoncoercivitystressrelationshipofx80steelunderbiaxialstress AT jianliu studyoncoercivitystressrelationshipofx80steelunderbiaxialstress AT jiayihe studyoncoercivitystressrelationshipofx80steelunderbiaxialstress AT yukunli studyoncoercivitystressrelationshipofx80steelunderbiaxialstress AT qifengpeng studyoncoercivitystressrelationshipofx80steelunderbiaxialstress AT chengkunli studyoncoercivitystressrelationshipofx80steelunderbiaxialstress |