Microstructure and creep strength evolution in G115 steel during creep at 650 °C
Microstructure and creep strength evolution in the ruptured 2.6 wt% W G115 specimens after creep tests were investigated under stresses of 120∼200 MPa at 650 °C. The growth of the lath during the creep tests was accompanied with the coarsening of second phase particles and the reduction of dislocati...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ab611d |
| _version_ | 1797747148935135232 |
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| author | Zhen Liu Zhengdong Liu Zhengzong Chen Xitao Wang Hansheng Bao Chen Dong |
| author_facet | Zhen Liu Zhengdong Liu Zhengzong Chen Xitao Wang Hansheng Bao Chen Dong |
| author_sort | Zhen Liu |
| collection | DOAJ |
| description | Microstructure and creep strength evolution in the ruptured 2.6 wt% W G115 specimens after creep tests were investigated under stresses of 120∼200 MPa at 650 °C. The growth of the lath during the creep tests was accompanied with the coarsening of second phase particles and the reduction of dislocation density. The tempered martensitic lath structure (TMLS) transformed into polygonal sub-grain structure when the pinning force due to the precipitates was lower than about 0.68 MPa. The Laves phase particles were irregular during the short-term creep and grew to be equiaxed shape after long-term creep. |
| first_indexed | 2024-03-12T15:47:02Z |
| format | Article |
| id | doaj.art-74a3ab0f2aec4c25a388af4a5a635c7a |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:47:02Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-74a3ab0f2aec4c25a388af4a5a635c7a2023-08-09T15:22:25ZengIOP PublishingMaterials Research Express2053-15912020-01-017101652810.1088/2053-1591/ab611dMicrostructure and creep strength evolution in G115 steel during creep at 650 °CZhen Liu0https://orcid.org/0000-0003-2723-2437Zhengdong Liu1Zhengzong Chen2Xitao Wang3Hansheng Bao4Chen Dong5Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing , Beijing 100083, People’s Republic of China; Institute for Special Steels , China Iron and Steel Research Institute, Beijing 100081, People’s Republic of ChinaInstitute for Special Steels , China Iron and Steel Research Institute, Beijing 100081, People’s Republic of ChinaInstitute for Special Steels , China Iron and Steel Research Institute, Beijing 100081, People’s Republic of ChinaCollaborative Innovation Center of Steel Technology, University of Science and Technology Beijing , Beijing 100083, People’s Republic of ChinaInstitute for Special Steels , China Iron and Steel Research Institute, Beijing 100081, People’s Republic of ChinaCollaborative Innovation Center of Steel Technology, University of Science and Technology Beijing , Beijing 100083, People’s Republic of China; Institute for Special Steels , China Iron and Steel Research Institute, Beijing 100081, People’s Republic of ChinaMicrostructure and creep strength evolution in the ruptured 2.6 wt% W G115 specimens after creep tests were investigated under stresses of 120∼200 MPa at 650 °C. The growth of the lath during the creep tests was accompanied with the coarsening of second phase particles and the reduction of dislocation density. The tempered martensitic lath structure (TMLS) transformed into polygonal sub-grain structure when the pinning force due to the precipitates was lower than about 0.68 MPa. The Laves phase particles were irregular during the short-term creep and grew to be equiaxed shape after long-term creep.https://doi.org/10.1088/2053-1591/ab611dlong-term creep650 °Cmicrostructure evolutionlaves phaseG115 steel |
| spellingShingle | Zhen Liu Zhengdong Liu Zhengzong Chen Xitao Wang Hansheng Bao Chen Dong Microstructure and creep strength evolution in G115 steel during creep at 650 °C Materials Research Express long-term creep 650 °C microstructure evolution laves phase G115 steel |
| title | Microstructure and creep strength evolution in G115 steel during creep at 650 °C |
| title_full | Microstructure and creep strength evolution in G115 steel during creep at 650 °C |
| title_fullStr | Microstructure and creep strength evolution in G115 steel during creep at 650 °C |
| title_full_unstemmed | Microstructure and creep strength evolution in G115 steel during creep at 650 °C |
| title_short | Microstructure and creep strength evolution in G115 steel during creep at 650 °C |
| title_sort | microstructure and creep strength evolution in g115 steel during creep at 650 °c |
| topic | long-term creep 650 °C microstructure evolution laves phase G115 steel |
| url | https://doi.org/10.1088/2053-1591/ab611d |
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