Table 5.
The specimen thinning (measured from the macrographs as shown in Figure 14 in the middle of the stir zone for each specimen from the batch I and II and then subtracted from an initial value of specimen thickness 0.8 mm).
| Specimen Thinning | 4500 rpm | 4000 rpm | 3500 rpm | 3000 rpm | 2500 rpm | 2000 rpm | 1500 rpm | 1000 rpm | |
|---|---|---|---|---|---|---|---|---|---|
| Batch I | (mm) | 0.35 ± 0.01 | 0.48 ± 0.03 | 0.39 ± 0.02 | 0.32 ± 0.01 | 0.12 ± 0.01 | |||
| (%) | 43.8 ± 1.25 | 60 ± 3.75 | 48.8 ± 2.5 | 40 ± 2.5 | 15 ± 1.25 | ||||
| Batch II | (mm) | 0.19 ± 0.03 | 0.36 ± 0.02 | 0.28 ± 0.03 | 0.29 ± 0.01 | 0.26 ± 0.02 | 0.26 ± 0.02 | 0.28 ± 0.01 | 0.17 ± 0.01 |
| (%) | 23.8 ± 3.75 | 45 ± 2.5 | 35 ± 3.75 | 36.3 ± 1.25 | 32.5 ± 2.5 | 32.5 ± 2.5 | 35 ± 1.25 | 21.3 ± 1.25 | |
| Base material | (mm) | 0.27 ± 0.3 | |||||||
| (%) | 33.75 ± 3.75 | ||||||||