Modifying of mechanical properties in the deposited metal prepared by welding wire containing nanosized oxide particles
Fine oxide particles can play a role in refining grains and promoting nucleation in steel. In this research, a solid welding wire containing nanosized oxides was obtained by preparing a ‘master alloy’. The oxide size was studied by optical microscopy, scanning electron microscopy and transmission el...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ac2bd5 |
| _version_ | 1797746829497991168 |
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| author | Haitao Xue Jianglong Zhao Huifen Peng Weibing Guo Tao Li Zhijie Ding |
| author_facet | Haitao Xue Jianglong Zhao Huifen Peng Weibing Guo Tao Li Zhijie Ding |
| author_sort | Haitao Xue |
| collection | DOAJ |
| description | Fine oxide particles can play a role in refining grains and promoting nucleation in steel. In this research, a solid welding wire containing nanosized oxides was obtained by preparing a ‘master alloy’. The oxide size was studied by optical microscopy, scanning electron microscopy and transmission electron microscopy. The results show that micron-sized oxides were crushed into nanosized particles under thermal shock in the welding wire steel smelting process. The mechanical properties of deposited metals were studied by tensile and Charpy impact tests. The results demonstrate that the low-temperature impact toughness of deposited metal is effectively improved by adding oxides to wires. When the oxide content was 1%, the impact absorbed energy was 59 J at −40 °C. Compared with that of the deposited metal without oxides, the impact absorbed energy increased by 22.92%. The addition of oxides refines the original austenite grains and promotes acicular ferrite nucleation so that the deposited metal has better mechanical properties. To obtain good strength toughness matching, the welding wire with 1% oxides has the best comprehensive properties. |
| first_indexed | 2024-03-12T15:42:23Z |
| format | Article |
| id | doaj.art-ac196afa685c438dbb492b72e7221268 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:42:23Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-ac196afa685c438dbb492b72e72212682023-08-09T15:55:06ZengIOP PublishingMaterials Research Express2053-15912021-01-0181010651010.1088/2053-1591/ac2bd5Modifying of mechanical properties in the deposited metal prepared by welding wire containing nanosized oxide particlesHaitao Xue0Jianglong Zhao1https://orcid.org/0000-0002-8214-3157Huifen Peng2Weibing Guo3https://orcid.org/0000-0002-1634-7557Tao Li4Zhijie Ding5Hebei University of Technology , Tianjin 300131, People’s Republic of ChinaHebei University of Technology , Tianjin 300131, People’s Republic of ChinaHebei University of Technology , Tianjin 300131, People’s Republic of ChinaHebei University of Technology , Tianjin 300131, People’s Republic of ChinaHebei University of Technology , Tianjin 300131, People’s Republic of ChinaHebei University of Technology , Tianjin 300131, People’s Republic of ChinaFine oxide particles can play a role in refining grains and promoting nucleation in steel. In this research, a solid welding wire containing nanosized oxides was obtained by preparing a ‘master alloy’. The oxide size was studied by optical microscopy, scanning electron microscopy and transmission electron microscopy. The results show that micron-sized oxides were crushed into nanosized particles under thermal shock in the welding wire steel smelting process. The mechanical properties of deposited metals were studied by tensile and Charpy impact tests. The results demonstrate that the low-temperature impact toughness of deposited metal is effectively improved by adding oxides to wires. When the oxide content was 1%, the impact absorbed energy was 59 J at −40 °C. Compared with that of the deposited metal without oxides, the impact absorbed energy increased by 22.92%. The addition of oxides refines the original austenite grains and promotes acicular ferrite nucleation so that the deposited metal has better mechanical properties. To obtain good strength toughness matching, the welding wire with 1% oxides has the best comprehensive properties.https://doi.org/10.1088/2053-1591/ac2bd5oxide particlesdeposited metalimpact absorbed energywelding |
| spellingShingle | Haitao Xue Jianglong Zhao Huifen Peng Weibing Guo Tao Li Zhijie Ding Modifying of mechanical properties in the deposited metal prepared by welding wire containing nanosized oxide particles Materials Research Express oxide particles deposited metal impact absorbed energy welding |
| title | Modifying of mechanical properties in the deposited metal prepared by welding wire containing nanosized oxide particles |
| title_full | Modifying of mechanical properties in the deposited metal prepared by welding wire containing nanosized oxide particles |
| title_fullStr | Modifying of mechanical properties in the deposited metal prepared by welding wire containing nanosized oxide particles |
| title_full_unstemmed | Modifying of mechanical properties in the deposited metal prepared by welding wire containing nanosized oxide particles |
| title_short | Modifying of mechanical properties in the deposited metal prepared by welding wire containing nanosized oxide particles |
| title_sort | modifying of mechanical properties in the deposited metal prepared by welding wire containing nanosized oxide particles |
| topic | oxide particles deposited metal impact absorbed energy welding |
| url | https://doi.org/10.1088/2053-1591/ac2bd5 |
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