| Autor: |
Shuai Tan, Feiyan Zheng, Juan Chen, Jingyu Han, Yujuan Wu, Liming Peng |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Journal of Magnesium and Alloys, Vol 5, Iss 1, Pp 56-63 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
2213-9567 |
| DOI: |
10.1016/j.jma.2016.11.005 |
| Popis: |
The microstructures and lap-shear behaviors of friction stir lap linear welded as-extruded 6061 Al alloy to as-cast Mg–3.0Nd–0.2Zn–0.7Zr (wt.%) (NZ30K) alloy joints were examined. Various tool rotation and travel speeds were adopted to prepare the joints. The analysis of temperature field indicates that the peak temperature for each sample can reach 450 °C, which exceeds the eutectic reaction temperatures of 437 °C and 450 °C according to the binary phase diagram of Al–Mg system. The fierce intermixing can be found at the interface between Al and Mg alloys, forming the intermetallic of Al3Mg2. Welds with the rotation speed of 900 rpm and travel speed of 120 mm/min display the highest tensile shear failure load of about 2.24 kN. The value was increased by 13% after the sample was heat treated at 400 °C for 0.5 h. Keywords: Friction stir lap linear welding (FSLW), Temperature field, Tensile shear test, Heat treatment |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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