Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Microstructure characterization and tensile properties of Mg/Al dissimilar joints manufactured by thermo-compensated resistance spot welding with Zn interlayer
Graphical abstract Display Omitted
Highlights Mg and Al were feasibly joined via thermal compensation RSW with Zn interlayer. The stud-like nugget was penetrated in Al side. SEM and XRD analysis showed the Al–Mg IMCs were restricted. The tensile–shear force of the weld joint was improved to 2199N.
Abstract Thermo-compensated resistance spot welding (RSW) with a Zn interlayer was designed to join AA5052-H12 (Al) aluminum alloy to AZ31B (Mg) magnesium alloy. A stainless steel tape placed between the upper electrode and the Al sheet acts as a heat barrier to prevent heat loss from the spot nugget on the Al side. During welding, more Al was melted to increase the percentage of Al in the liquid nugget. In the resultant Mg/Zn/Al joints produced by thermo-compensated RSW, the formation of Mg–Al brittle intermetallic compounds is restricted. The tensile–shear properties of the weld joint were improved significantly. The failure load of the Mg/Al joints was up to 2199N, compared with the 833N and 727N that is produced by traditional Mg/Al RSW and Mg/Al RSW with Zn interlayer, respectively.
Microstructure characterization and tensile properties of Mg/Al dissimilar joints manufactured by thermo-compensated resistance spot welding with Zn interlayer
Graphical abstract Display Omitted
Highlights Mg and Al were feasibly joined via thermal compensation RSW with Zn interlayer. The stud-like nugget was penetrated in Al side. SEM and XRD analysis showed the Al–Mg IMCs were restricted. The tensile–shear force of the weld joint was improved to 2199N.
Abstract Thermo-compensated resistance spot welding (RSW) with a Zn interlayer was designed to join AA5052-H12 (Al) aluminum alloy to AZ31B (Mg) magnesium alloy. A stainless steel tape placed between the upper electrode and the Al sheet acts as a heat barrier to prevent heat loss from the spot nugget on the Al side. During welding, more Al was melted to increase the percentage of Al in the liquid nugget. In the resultant Mg/Zn/Al joints produced by thermo-compensated RSW, the formation of Mg–Al brittle intermetallic compounds is restricted. The tensile–shear properties of the weld joint were improved significantly. The failure load of the Mg/Al joints was up to 2199N, compared with the 833N and 727N that is produced by traditional Mg/Al RSW and Mg/Al RSW with Zn interlayer, respectively.
Microstructure characterization and tensile properties of Mg/Al dissimilar joints manufactured by thermo-compensated resistance spot welding with Zn interlayer
Zhang, Yu (Autor:in) / Luo, Zhen (Autor:in) / Li, Yang (Autor:in) / Liu, ZuMing (Autor:in) / Huang, ZunYue (Autor:in)
19.03.2015
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Online Contents | 2014
| Emerald Group Publishing | 2025
| British Library Online Contents | 2012