Title :
Ultrasonic assessment of heat-damage in 7050 aluminum alloy
Author :
LeBlanc, Roland D. ; Maslouhi, Ahmed ; Forsyth, David ; Fahr, Abbas ; Moreau, Andrk
Author_Institution :
Sch. of Eng., Moncton Univ., NB, Canada
Abstract :
The effect of exposure of 7050 aluminum alloy to heat damage has been studied using ultrasonic techniques. Contact, immersion, and laser ultrasonic techniques were used. The relationships of ultrasonic attenuation with static material properties and material microstructure were evaluated. It was shown that attenuation measurements at high frequencies (>20 MHz) can provide an indication of material microstructure and thus mechanical properties of 7050 aluminum
Keywords :
Guinier-Preston zones; aluminium alloys; copper alloys; magnesium alloys; microhardness; ultrasonic absorption; ultrasonic materials testing; zinc alloys; 20 to 60 MHz; 7050 aluminum alloy; Al-Zn-Mg-Cu; GP zones; aircraft alloys; contact ultrasonic technique; hardness; heat damage; heat treatment; immersion ultrasonic technique; laser ultrasonic technique; material microstructure; mechanical properties; nondestructive inspection; precipitate formation; static material properties; ultrasonic assessment; ultrasonic attenuation; Aerospace industry; Aerospace materials; Aluminum alloys; Conductivity measurement; Councils; Heat treatment; Microstructure; Optical materials; Resistance heating; Temperature;
Conference_Titel :
Ultrasonics Symposium, 1997. Proceedings., 1997 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-4153-8
DOI :
10.1109/ULTSYM.1997.663113
