Distribution of Zn and Interfacial Microstructure of Braze-Welding CMT Joints between Aluminium and Galvanized Steel Sheets
| Autor: | Peng He, Jiayun Feng, Heinz Hackl |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Gas porosity
Materials science Metallurgy Intermetallic chemistry.chemical_element Intergranular corrosion Condensed Matter Physics Microstructure Atomic and Molecular Physics and Optics Galvanization Corrosion symbols.namesake chemistry Aluminium symbols Brazing General Materials Science Composite material |
| Zdroj: | Solid State Phenomena. 127:43-48 |
| ISSN: | 1662-9779 |
| DOI: | 10.4028/www.scientific.net/ssp.127.43 |
| Popis: | Distribution of Zn and interfacial microstructure of braze-welding CMT joints between aluminium and galvanized steel sheets were researched. The results showed, except the gas porosity contains a little Zn, the other areas of fusion zone almost have no Zn. Temperature plays a decisive role in the distribution of Zn. The content of Zn is higher in the dendritic crystal than the intergranular part. The Zn coat adjacent to the joint is almost evaporated entirely. The Zn coat of steel sheet in the heat-affected zone around the joint is badly destroyed, and the corrosion resistance of the joint will decline. There are FeAl3 intermetallics and Al-Fe-Zn triphase solid solution formed at the interface. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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