Microstructure and Mechanical Properties of Stainless Steel/6082 Aluminum Alloy Heterogeneous Laser Welded Joint
The microstructures and mechanical properties of laser penetration welded joints of overlap steel-on-aluminum were investigated. The structure of the intermetallic compound layer without interlayer consists of FeAl and FeAl<sub>3</sub> phases. After the Ni-foil was added, the thickness o...
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| Format: | Article |
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MDPI AG
2023-10-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/21/6958 |
| _version_ | 1797631668605943808 |
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| author | Lei Kang Xin Li Jing Chen Yu Zhang Ting Wang |
| author_facet | Lei Kang Xin Li Jing Chen Yu Zhang Ting Wang |
| author_sort | Lei Kang |
| collection | DOAJ |
| description | The microstructures and mechanical properties of laser penetration welded joints of overlap steel-on-aluminum were investigated. The structure of the intermetallic compound layer without interlayer consists of FeAl and FeAl<sub>3</sub> phases. After the Ni-foil was added, the thickness of the intermetallic compound layer and the content of the brittle and hard Al-Fe phase decreased significantly, and some new phases of Al<sub>0.9</sub>Ni<sub>1.1</sub> and FeNi were formed. It was found that the Ni interlayer enhanced the tensile property of the joint by about 40% and decreased the microhardness of the intermetallic compounds, which is attributed to the improvement of the toughness of the welded joint made by the Ni interlayer. It is an effective way to improve the mechanical properties of the laser welding joint by adding a nickel interlayer to improve the metallurgical reaction. |
| first_indexed | 2024-03-11T11:26:31Z |
| format | Article |
| id | doaj.art-a0da163967224906bfec7215279a6a9f |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T11:26:31Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-a0da163967224906bfec7215279a6a9f2023-11-10T15:07:27ZengMDPI AGMaterials1996-19442023-10-011621695810.3390/ma16216958Microstructure and Mechanical Properties of Stainless Steel/6082 Aluminum Alloy Heterogeneous Laser Welded JointLei Kang0Xin Li1Jing Chen2Yu Zhang3Ting Wang4State Key Laboratory of Automobile Materials, Jilin University, Changchun 130022, ChinaState Key Laboratory of Automobile Materials, Jilin University, Changchun 130022, ChinaState Key Laboratory of Automobile Materials, Jilin University, Changchun 130022, ChinaState Key Laboratory of Automobile Materials, Jilin University, Changchun 130022, ChinaState Key Laboratory of Automobile Materials, Jilin University, Changchun 130022, ChinaThe microstructures and mechanical properties of laser penetration welded joints of overlap steel-on-aluminum were investigated. The structure of the intermetallic compound layer without interlayer consists of FeAl and FeAl<sub>3</sub> phases. After the Ni-foil was added, the thickness of the intermetallic compound layer and the content of the brittle and hard Al-Fe phase decreased significantly, and some new phases of Al<sub>0.9</sub>Ni<sub>1.1</sub> and FeNi were formed. It was found that the Ni interlayer enhanced the tensile property of the joint by about 40% and decreased the microhardness of the intermetallic compounds, which is attributed to the improvement of the toughness of the welded joint made by the Ni interlayer. It is an effective way to improve the mechanical properties of the laser welding joint by adding a nickel interlayer to improve the metallurgical reaction.https://www.mdpi.com/1996-1944/16/21/6958laser weldingsteel/aluminum weldingintermetallic compoundsmicrostructure |
| spellingShingle | Lei Kang Xin Li Jing Chen Yu Zhang Ting Wang Microstructure and Mechanical Properties of Stainless Steel/6082 Aluminum Alloy Heterogeneous Laser Welded Joint Materials laser welding steel/aluminum welding intermetallic compounds microstructure |
| title | Microstructure and Mechanical Properties of Stainless Steel/6082 Aluminum Alloy Heterogeneous Laser Welded Joint |
| title_full | Microstructure and Mechanical Properties of Stainless Steel/6082 Aluminum Alloy Heterogeneous Laser Welded Joint |
| title_fullStr | Microstructure and Mechanical Properties of Stainless Steel/6082 Aluminum Alloy Heterogeneous Laser Welded Joint |
| title_full_unstemmed | Microstructure and Mechanical Properties of Stainless Steel/6082 Aluminum Alloy Heterogeneous Laser Welded Joint |
| title_short | Microstructure and Mechanical Properties of Stainless Steel/6082 Aluminum Alloy Heterogeneous Laser Welded Joint |
| title_sort | microstructure and mechanical properties of stainless steel 6082 aluminum alloy heterogeneous laser welded joint |
| topic | laser welding steel/aluminum welding intermetallic compounds microstructure |
| url | https://www.mdpi.com/1996-1944/16/21/6958 |
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