Interfacial microstructure of stainless steel/aluminum alloy tube lap joints fabricated via magnetic pulse welding
| Autor: | Haiqing Dang, Haiping Yu, Yanan Qiu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0209 industrial biotechnology
Heat-affected zone Materials science Alloy Metallurgy Metals and Alloys 02 engineering and technology Welding engineering.material 021001 nanoscience & nanotechnology Microstructure Industrial and Manufacturing Engineering Nanocrystalline material Computer Science Applications law.invention 020901 industrial engineering & automation Lap joint Magnetic pulse welding law Modeling and Simulation Ceramics and Composites engineering Severe plastic deformation 0210 nano-technology |
| Zdroj: | Journal of Materials Processing Technology. 250:297-303 |
| ISSN: | 0924-0136 |
| DOI: | 10.1016/j.jmatprotec.2017.07.027 |
| Popis: | Magnetic pulse welding was utilized to join 5A02 aluminum alloy and SS304 stainless steel tubes under a discharge voltage of 15–17 kV and 1.75 mm radial gap. SEM, TEM, and EDS analyses are performed to assess the interface microstructure of the transition zone joint. The interface with the transition zone is composed of an amorphous matrix comprised mostly of Al with relatively less Fe, plus irregular nanocrystalline second phases embedded within the amorphous phase matrix. The magnetic pulse welding interface with the transition zone essentially forms a fused interface and the base metals on both sides of the transition zone maintain the deformed structure exhibiting severe plastic deformation, grain refinement, and an increased hardness near the interface. |
| Databáze: | OpenAIRE |
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