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Sample group classification.
| Research Purpose | Sample Groups |
|---|---|
| influence of crack length | G1, G2, G3, G4, G5, G6 |
| influence of crack depth | G7, G8, G9, G10, G11, G12 |
| influence of corrosion pit radius | G13, G14, G15, G16, G17, G18 |
| influence of corrosion pit depth | G19, G20, G21, G22, G23 |
