?CT imaging 1 EMC 1 FFM 1 Inconel 690 tube 1 X-ray techniques 1 aircraft 1 alloy steel 1 aluminium plates 1 aluminum foam sandwich blunt V-notches 1 cathodic polarization 1 cathodic polarization or cathodic charge (CC) 1 cathodic protection (CP) 1 compressive residual stress 1 crack initiation 1 critical distance 1 ductile failure 1 environmentally assisted cracking 1 failure assessment diagram (FAD) 1 fastener 1 fatigue 1 fatigue crack growth 1 fatigue design curve 1 fatigue life 1 fatigue limit 1 fatigue strength 1 fatigue test 1 fracture 1 high strength low alloy steels (HSLA) 1 hot-press-formed steel 1