Microstructure and Mechanical Properties of Laser-Welded Joints between DP590 Dual-Phase Steel and 304 Stainless Steel with Preset Nickel Coating
Dissimilarities in metal laser welding lead to brittleness in welded joints due to differences in the thermophysical and chemical properties between dissimilar base materials. To overcome such brittleness, the addition of a preset coating onto the base materials as an interlayer is a method for atta...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/7/2774 |
| _version_ | 1797607497763127296 |
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| author | Hua Zhang Jiahui Xu Desheng Hao Othman Mohammed Ali Othman Esmail |
| author_facet | Hua Zhang Jiahui Xu Desheng Hao Othman Mohammed Ali Othman Esmail |
| author_sort | Hua Zhang |
| collection | DOAJ |
| description | Dissimilarities in metal laser welding lead to brittleness in welded joints due to differences in the thermophysical and chemical properties between dissimilar base materials. To overcome such brittleness, the addition of a preset coating onto the base materials as an interlayer is a method for attaining reliable welded joints. Nd:YAG laser butt welding of DP590 dual-phase steel and 304 stainless, both with a thickness of 1 mm, was performed with a preset nickel coating as an interlayer using an electroplating process. The relationship between the microstructure and the mechanical properties of the welded joints was researched, the microstructure and composition of the weldment were analyzed, and the microhardness, tensile strength and corrosion resistance were tested. The results showed that the preset nickel coating increased the content of Ni element in the welded joints, which is beneficial to the formation of lath martensite. The average hardness of the welded joints increased by 12%, and the tensile strength was higher than 370 MPa. The corrosion rate of the welded joints can be slowed down, and the corrosion resistance can be improved by increasing the nickel coating. |
| first_indexed | 2024-03-11T05:31:52Z |
| format | Article |
| id | doaj.art-7a6d51f17d4142c79fb0f5478265d86c |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T05:31:52Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-7a6d51f17d4142c79fb0f5478265d86c2023-11-17T17:04:54ZengMDPI AGMaterials1996-19442023-03-01167277410.3390/ma16072774Microstructure and Mechanical Properties of Laser-Welded Joints between DP590 Dual-Phase Steel and 304 Stainless Steel with Preset Nickel CoatingHua Zhang0Jiahui Xu1Desheng Hao2Othman Mohammed Ali Othman Esmail3School of Mechanical Engineering, Nantong University, Nantong 226019, ChinaSchool of Mechanical Engineering, Nantong University, Nantong 226019, ChinaSchool of Mechanical Engineering, Nantong University, Nantong 226019, ChinaSchool of Mechanical Engineering, Nantong University, Nantong 226019, ChinaDissimilarities in metal laser welding lead to brittleness in welded joints due to differences in the thermophysical and chemical properties between dissimilar base materials. To overcome such brittleness, the addition of a preset coating onto the base materials as an interlayer is a method for attaining reliable welded joints. Nd:YAG laser butt welding of DP590 dual-phase steel and 304 stainless, both with a thickness of 1 mm, was performed with a preset nickel coating as an interlayer using an electroplating process. The relationship between the microstructure and the mechanical properties of the welded joints was researched, the microstructure and composition of the weldment were analyzed, and the microhardness, tensile strength and corrosion resistance were tested. The results showed that the preset nickel coating increased the content of Ni element in the welded joints, which is beneficial to the formation of lath martensite. The average hardness of the welded joints increased by 12%, and the tensile strength was higher than 370 MPa. The corrosion rate of the welded joints can be slowed down, and the corrosion resistance can be improved by increasing the nickel coating.https://www.mdpi.com/1996-1944/16/7/2774laser weldingdissimilar jointsaustenitic steeldual phase steelnickel coatingmicrostructure |
| spellingShingle | Hua Zhang Jiahui Xu Desheng Hao Othman Mohammed Ali Othman Esmail Microstructure and Mechanical Properties of Laser-Welded Joints between DP590 Dual-Phase Steel and 304 Stainless Steel with Preset Nickel Coating Materials laser welding dissimilar joints austenitic steel dual phase steel nickel coating microstructure |
| title | Microstructure and Mechanical Properties of Laser-Welded Joints between DP590 Dual-Phase Steel and 304 Stainless Steel with Preset Nickel Coating |
| title_full | Microstructure and Mechanical Properties of Laser-Welded Joints between DP590 Dual-Phase Steel and 304 Stainless Steel with Preset Nickel Coating |
| title_fullStr | Microstructure and Mechanical Properties of Laser-Welded Joints between DP590 Dual-Phase Steel and 304 Stainless Steel with Preset Nickel Coating |
| title_full_unstemmed | Microstructure and Mechanical Properties of Laser-Welded Joints between DP590 Dual-Phase Steel and 304 Stainless Steel with Preset Nickel Coating |
| title_short | Microstructure and Mechanical Properties of Laser-Welded Joints between DP590 Dual-Phase Steel and 304 Stainless Steel with Preset Nickel Coating |
| title_sort | microstructure and mechanical properties of laser welded joints between dp590 dual phase steel and 304 stainless steel with preset nickel coating |
| topic | laser welding dissimilar joints austenitic steel dual phase steel nickel coating microstructure |
| url | https://www.mdpi.com/1996-1944/16/7/2774 |
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