Study on the interface formation mechanism and properties of CoCrNi/316L composites prepared by explosive welding
In this study, a CoCrNi/316L composite is prepared via explosive welding. The interface of the CoCrNi/316L composite exhibits a uniform wavy structure with vortices. The formation mechanism of the wavy interface is clarified using smoothed particles hydrodynamics (SPH) simulation, which is also empl...
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| Language: | English |
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425003692 |
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| author | Jiahui Li Xiaopeng Liang Hui Tao Zhiheng Zeng Xiaofen Tan Huizhong Li Yong Liu |
| author_facet | Jiahui Li Xiaopeng Liang Hui Tao Zhiheng Zeng Xiaofen Tan Huizhong Li Yong Liu |
| author_sort | Jiahui Li |
| collection | DOAJ |
| description | In this study, a CoCrNi/316L composite is prepared via explosive welding. The interface of the CoCrNi/316L composite exhibits a uniform wavy structure with vortices. The formation mechanism of the wavy interface is clarified using smoothed particles hydrodynamics (SPH) simulation, which is also employed to calculate the temperature and strain distribution at the interface during the explosive welding. By correlating the simulated temperature and strain fields at different locations with the experimentally observed grain characteristics, the formation mechanism of various grain types near the interface is analyzed. The CoCrNi matrix consists of ultrafine equiaxed grains formed through dynamic recrystallization (DRX), while the 316L contains coarse grains characterized by high stress due to severe deformation. The vortex zones are primarily composed of columnar grains resulting from crystallization of molten liquid. Nanoindentation test results show that the hardness progressively increases from the matrix to the interface. Notably, the interfacial shearing strength of the CoCrNi/316L composite reaches up to 796 MPa. |
| format | Article |
| id | doaj-art-e9535b76028c4885964ddf2e0d6a7190 |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-e9535b76028c4885964ddf2e0d6a71902025-08-20T02:14:31ZengElsevierJournal of Materials Research and Technology2238-78542025-03-01354587459810.1016/j.jmrt.2025.02.122Study on the interface formation mechanism and properties of CoCrNi/316L composites prepared by explosive weldingJiahui Li0Xiaopeng Liang1Hui Tao2Zhiheng Zeng3Xiaofen Tan4Huizhong Li5Yong Liu6School of Materials Science and Engineering, Central South University, Changsha, 410083, ChinaSchool of Materials Science and Engineering, Central South University, Changsha, 410083, China; State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China; Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education, Central South University, Changsha, 410083, China; Corresponding author. School of Materials Science and Engineering, Central South University, Changsha 410083, China.School of Materials Science and Engineering, Central South University, Changsha, 410083, ChinaSchool of Materials Science and Engineering, Central South University, Changsha, 410083, China; Hunan Phohom New Material Technology Co., Ltd., Changsha, 410093, ChinaSchool of Materials Science and Engineering, Central South University, Changsha, 410083, China; Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education, Central South University, Changsha, 410083, China; Corresponding author. School of Materials Science and Engineering, Central South University, Changsha 410083, China.School of Materials Science and Engineering, Central South University, Changsha, 410083, China; State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China; Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education, Central South University, Changsha, 410083, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, ChinaIn this study, a CoCrNi/316L composite is prepared via explosive welding. The interface of the CoCrNi/316L composite exhibits a uniform wavy structure with vortices. The formation mechanism of the wavy interface is clarified using smoothed particles hydrodynamics (SPH) simulation, which is also employed to calculate the temperature and strain distribution at the interface during the explosive welding. By correlating the simulated temperature and strain fields at different locations with the experimentally observed grain characteristics, the formation mechanism of various grain types near the interface is analyzed. The CoCrNi matrix consists of ultrafine equiaxed grains formed through dynamic recrystallization (DRX), while the 316L contains coarse grains characterized by high stress due to severe deformation. The vortex zones are primarily composed of columnar grains resulting from crystallization of molten liquid. Nanoindentation test results show that the hardness progressively increases from the matrix to the interface. Notably, the interfacial shearing strength of the CoCrNi/316L composite reaches up to 796 MPa.http://www.sciencedirect.com/science/article/pii/S2238785425003692CoCrNi/316L compositeExplosive weldingInterface evolutionGrain structureSPH simulation |
| spellingShingle | Jiahui Li Xiaopeng Liang Hui Tao Zhiheng Zeng Xiaofen Tan Huizhong Li Yong Liu Study on the interface formation mechanism and properties of CoCrNi/316L composites prepared by explosive welding Journal of Materials Research and Technology CoCrNi/316L composite Explosive welding Interface evolution Grain structure SPH simulation |
| title | Study on the interface formation mechanism and properties of CoCrNi/316L composites prepared by explosive welding |
| title_full | Study on the interface formation mechanism and properties of CoCrNi/316L composites prepared by explosive welding |
| title_fullStr | Study on the interface formation mechanism and properties of CoCrNi/316L composites prepared by explosive welding |
| title_full_unstemmed | Study on the interface formation mechanism and properties of CoCrNi/316L composites prepared by explosive welding |
| title_short | Study on the interface formation mechanism and properties of CoCrNi/316L composites prepared by explosive welding |
| title_sort | study on the interface formation mechanism and properties of cocrni 316l composites prepared by explosive welding |
| topic | CoCrNi/316L composite Explosive welding Interface evolution Grain structure SPH simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425003692 |
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