Micromorphology and damage characterization of vacuum brazed stainless steel joints with laser etched interfaces
This study investigates the effect of laser etching on vacuum welded joints through organizational observation and shear testing. The residual stress in various sample structures during the brazing process was analyzed through the proposed FE models. The findings indicate that laser etching improves...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/adb002 |
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| author | Jie Wang Huixin Chen Yichuan Wang Nian Li Xinlong Wei Xiang Ling |
| author_facet | Jie Wang Huixin Chen Yichuan Wang Nian Li Xinlong Wei Xiang Ling |
| author_sort | Jie Wang |
| collection | DOAJ |
| description | This study investigates the effect of laser etching on vacuum welded joints through organizational observation and shear testing. The residual stress in various sample structures during the brazing process was analyzed through the proposed FE models. The findings indicate that laser etching improves the wetting behavior of copper brazing material on AISI 304 stainless steel substrate. However, contrary to theoretical expectations, due to the melting and splashing of the base material during laser etching, loose stacked particles are formed. With the increase of laser etching times, the shear strength of brazed joints shows a gradual decline trend. The finite element results indicate that the microstructure formed by laser etching promotes the generation of thermal residual compressive stress and reduces residual tensile stress. |
| format | Article |
| id | doaj-art-9064dc2e33e94debb6f50445f5dab8ba |
| institution | Kabale University |
| issn | 2053-1591 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-9064dc2e33e94debb6f50445f5dab8ba2025-02-07T17:58:10ZengIOP PublishingMaterials Research Express2053-15912025-01-0112202650410.1088/2053-1591/adb002Micromorphology and damage characterization of vacuum brazed stainless steel joints with laser etched interfacesJie Wang0Huixin Chen1Yichuan Wang2Nian Li3https://orcid.org/0000-0002-7615-4319Xinlong Wei4Xiang Ling5College of Mechanical and Power Engineering, Nanjing Tech University , Nanjing, 211816, People’s Republic of ChinaCollege of Mechanical and Power Engineering, Nanjing Tech University , Nanjing, 211816, People’s Republic of ChinaCollege of Mechanical and Power Engineering, Nanjing Tech University , Nanjing, 211816, People’s Republic of ChinaCollege of Mechanical and Power Engineering, Nanjing Tech University , Nanjing, 211816, People’s Republic of China; Department of Mechanical Engineering, National University of Singapore , Singapore, 117575, SingaporeCollege of Mechanical Engineering, Yangzhou University , Yangzhou, 225127, People’s Republic of ChinaCollege of Mechanical and Power Engineering, Nanjing Tech University , Nanjing, 211816, People’s Republic of ChinaThis study investigates the effect of laser etching on vacuum welded joints through organizational observation and shear testing. The residual stress in various sample structures during the brazing process was analyzed through the proposed FE models. The findings indicate that laser etching improves the wetting behavior of copper brazing material on AISI 304 stainless steel substrate. However, contrary to theoretical expectations, due to the melting and splashing of the base material during laser etching, loose stacked particles are formed. With the increase of laser etching times, the shear strength of brazed joints shows a gradual decline trend. The finite element results indicate that the microstructure formed by laser etching promotes the generation of thermal residual compressive stress and reduces residual tensile stress.https://doi.org/10.1088/2053-1591/adb002laser etchingvacuum brazingshear testresidual stress |
| spellingShingle | Jie Wang Huixin Chen Yichuan Wang Nian Li Xinlong Wei Xiang Ling Micromorphology and damage characterization of vacuum brazed stainless steel joints with laser etched interfaces Materials Research Express laser etching vacuum brazing shear test residual stress |
| title | Micromorphology and damage characterization of vacuum brazed stainless steel joints with laser etched interfaces |
| title_full | Micromorphology and damage characterization of vacuum brazed stainless steel joints with laser etched interfaces |
| title_fullStr | Micromorphology and damage characterization of vacuum brazed stainless steel joints with laser etched interfaces |
| title_full_unstemmed | Micromorphology and damage characterization of vacuum brazed stainless steel joints with laser etched interfaces |
| title_short | Micromorphology and damage characterization of vacuum brazed stainless steel joints with laser etched interfaces |
| title_sort | micromorphology and damage characterization of vacuum brazed stainless steel joints with laser etched interfaces |
| topic | laser etching vacuum brazing shear test residual stress |
| url | https://doi.org/10.1088/2053-1591/adb002 |
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