Research Article
Unstable Temperature Distribution in Friction Stir Welding
Table 1
Chemical composition of alloy elements in the 6061-T6 plates.
| Chemical composition (wt%) | Ultimate tensile strength (MPa) | Mg | Si | Mn | Cu | Fe | Cr | Zn | Ti | Other | Al |
| 1.06 | 0.67 | 0.014 | 0.23 | 0.32 | 0.21 | 0.007 | 0.02 | 0.05 | Bal | 312 ± 10 |
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