Table 2 8 groups of specimens with different roughness combinations.
Specimen | Planar surface Ra/μm | Corner region Ra/μm | Curved surface Ra/μm | Specimen number |
|---|---|---|---|---|
Planar plate specimen (2 mm) | 1.6 | 1.6 | – | A-1 |
1.6 | 0.4 | – | A-2 | |
0.4 | 0.4 | – | A-3 | |
Planar plate specimen (10 mm) | 1.6 | 1.6 | – | B-1 |
1.6 | 0.4 | – | B-2 | |
0.4 | 0.4 | – | B-3 | |
Solid bar specimen | – | – | 1.6 | C-1 |
– | – | 0.4 | C-2 |
