The effect of AlFeSi intermetallics compounds morphology on the corrosion behavior of Al–Mg–Si alloy laser welds
This work investigated the relationship between the morphology of AlFeSi intermetallics compounds (IMCs) and grains, and its influence on the corrosion behavior of the surface of Al–Mg–Si alloy laser welds. Due to the segregation of solute elements on the grain boundary, coarse AlFeSi IMCs were more...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-09-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785421007031 |
| _version_ | 1818649316139466752 |
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| author | Xia-Ming Chen Xiao-Nan Wang Qi-Peng Dong Jia-Min Yu Zhen Zhu Hiromi Nagaumi |
| author_facet | Xia-Ming Chen Xiao-Nan Wang Qi-Peng Dong Jia-Min Yu Zhen Zhu Hiromi Nagaumi |
| author_sort | Xia-Ming Chen |
| collection | DOAJ |
| description | This work investigated the relationship between the morphology of AlFeSi intermetallics compounds (IMCs) and grains, and its influence on the corrosion behavior of the surface of Al–Mg–Si alloy laser welds. Due to the segregation of solute elements on the grain boundary, coarse AlFeSi IMCs were more likely to precipitate along the grain boundary. As a result, the “linear-like” AlFeSi IMCs was only found along the straight grain boundary of columnar grains, leading to the deterioration of corrosion resistance, but for the equiaxed grains, only small rod-like AlFeSi IMCs was along the grain boundary. Compared to the small rod-like AlFeSi IMCs at GBs of equiaxed grains, the “linear-like” AlFeSi IMCs at the straight GBs of columnar grains increased the interface area between α-Al, leading to a more evident intergranular corrosion at columnar boundary. |
| first_indexed | 2024-12-17T01:32:23Z |
| format | Article |
| id | doaj.art-955d405b51024e22ae08f2532971ec3b |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-17T01:32:23Z |
| publishDate | 2021-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-955d405b51024e22ae08f2532971ec3b2022-12-21T22:08:32ZengElsevierJournal of Materials Research and Technology2238-78542021-09-011412031207The effect of AlFeSi intermetallics compounds morphology on the corrosion behavior of Al–Mg–Si alloy laser weldsXia-Ming Chen0Xiao-Nan Wang1Qi-Peng Dong2Jia-Min Yu3Zhen Zhu4Hiromi Nagaumi5School of Iron and Steel, Soochow University, Suzhou 215021, China; High-Performance Metal Structural Materials Research Institute, Soochow University, Suzhou 215021, ChinaSchool of Iron and Steel, Soochow University, Suzhou 215021, China; Corresponding author.School of Iron and Steel, Soochow University, Suzhou 215021, China; High-Performance Metal Structural Materials Research Institute, Soochow University, Suzhou 215021, ChinaSchool of Iron and Steel, Soochow University, Suzhou 215021, ChinaSchool of Iron and Steel, Soochow University, Suzhou 215021, ChinaSchool of Iron and Steel, Soochow University, Suzhou 215021, China; High-Performance Metal Structural Materials Research Institute, Soochow University, Suzhou 215021, China; Corresponding author.This work investigated the relationship between the morphology of AlFeSi intermetallics compounds (IMCs) and grains, and its influence on the corrosion behavior of the surface of Al–Mg–Si alloy laser welds. Due to the segregation of solute elements on the grain boundary, coarse AlFeSi IMCs were more likely to precipitate along the grain boundary. As a result, the “linear-like” AlFeSi IMCs was only found along the straight grain boundary of columnar grains, leading to the deterioration of corrosion resistance, but for the equiaxed grains, only small rod-like AlFeSi IMCs was along the grain boundary. Compared to the small rod-like AlFeSi IMCs at GBs of equiaxed grains, the “linear-like” AlFeSi IMCs at the straight GBs of columnar grains increased the interface area between α-Al, leading to a more evident intergranular corrosion at columnar boundary.http://www.sciencedirect.com/science/article/pii/S2238785421007031Al–Mg–Si alloyWeldingAlFeSi IMCsCorrosion |
| spellingShingle | Xia-Ming Chen Xiao-Nan Wang Qi-Peng Dong Jia-Min Yu Zhen Zhu Hiromi Nagaumi The effect of AlFeSi intermetallics compounds morphology on the corrosion behavior of Al–Mg–Si alloy laser welds Journal of Materials Research and Technology Al–Mg–Si alloy Welding AlFeSi IMCs Corrosion |
| title | The effect of AlFeSi intermetallics compounds morphology on the corrosion behavior of Al–Mg–Si alloy laser welds |
| title_full | The effect of AlFeSi intermetallics compounds morphology on the corrosion behavior of Al–Mg–Si alloy laser welds |
| title_fullStr | The effect of AlFeSi intermetallics compounds morphology on the corrosion behavior of Al–Mg–Si alloy laser welds |
| title_full_unstemmed | The effect of AlFeSi intermetallics compounds morphology on the corrosion behavior of Al–Mg–Si alloy laser welds |
| title_short | The effect of AlFeSi intermetallics compounds morphology on the corrosion behavior of Al–Mg–Si alloy laser welds |
| title_sort | effect of alfesi intermetallics compounds morphology on the corrosion behavior of al mg si alloy laser welds |
| topic | Al–Mg–Si alloy Welding AlFeSi IMCs Corrosion |
| url | http://www.sciencedirect.com/science/article/pii/S2238785421007031 |
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