Title :
NDE of surface fatigue crack and grooved plane with defect by photoacoustic imaging
Author :
Endoh, H. ; Hiwatashi, Y. ; Hoshimiya, T.
Author_Institution :
Tohoku Gakuin Univ., Miyagi, Japan
Abstract :
Photoacoustic (PA) imaging was applied to detect the actual surface fatigue crack and the grooved plane with defect. Three types of specimen are prepared. Two types of specimen were prepared for fatigue cracks. The materials used were brass and aluminum alloy (Duralumin). The third type of grooved specimen with defect was made of aluminum. The actual fatigue crack and the defect in groove were clearly shown in the obtained PA image.
Keywords :
acoustic microscopy; aluminium; aluminium alloys; brass; crack detection; fatigue cracks; flaw detection; photoacoustic effect; ultrasonic materials testing; Al; Duralumin; NDE; SEM image; aluminum alloy; brass; grooved plane with defect; photoacoustic imaging; photoacoustic microscopy; surface fatigue crack; Aluminum alloys; Fatigue; Hard disks; Laser beams; Magnetic heads; Optical computing; Optical imaging; Scanning electron microscopy; Shape memory alloys; Surface cracks;
Conference_Titel :
Ultrasonics Symposium, 1999. Proceedings. 1999 IEEE
Conference_Location :
Caesars Tahoe, NV
Print_ISBN :
0-7803-5722-1
DOI :
10.1109/ULTSYM.1999.849529
