Open Access
Table 11.
Feasibility of NDT techniques to fulfil Al-Sn alloy/steel online inspection requirements.
NDT technique/criteria | Delamination detection capability | Inspection speed for in-line application >12 /min | Compatability with Al-Sn alloy/steel bimetal material properties | Surface irregularities: scratches, oil, specular and matt appearance | Strong rigid-body motion and vibration | Ambient conditions changes: light/temperature |
---|---|---|---|---|---|---|
Thermography | ✓ | ✓ | ✓ | ⨉ | ⨉ | ⨉ |
Laser shearography | ✓ | ✓ | ✓ | ⨉ | ⨉ | ⨉ |
Ultrasound | ✓ | ⨉ | ✓ | ✓ | ✓ | ✓ |
Guided wave EMATs | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
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